Continental Refrigerator Permold IOF-550-B User manual

IOF-550-B
C
N
P
R
Publication M-24 Change 1
© 2007 TELEDYNE CONTINENTAL MOTORS INCORPORATED OCT 2007
CONTINENTAL®AIRCRAFT ENGINE
PERMOLD SERIES ENGINE
MAINTENANCE
MANUAL
TECHNICAL PORTIONS APPROVED BY THE FAA

Teledyne Continental Motors, Inc.
TM
ii IOF-550 Permold Series Engine Maintenance Manual
Change 1 12 October 2007
Supersedure Notice
This manual revises IOF-550 Permold Series engine maintenance procedures and incorporates information
previously referenced in TCM Form F-6. This manual supersedes TCM Form M-24, published in November 2003 and
the Advance Production Release dated Feb 2007. Previous editions are obsolete upon release of this publication.
Effective Changes for this Manual
0 ................................1 Apr 2007
1 ................................12 Oct 2007
List of Effective Pages
Document Title: IOF-550 Permold Series Engine Maintenance Manual
Publication Number: M-24 Initial Publication Date: 1 Apr 2007
Page ...................Change Page ...................Change Page................... Change Page...................Change
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Published and printed in the U.S.A. by Teledyne Continental Motors.
Available exclusively from the publisher: P.O. Box 90, Mobile, AL 36601
Copyright © 2007 by Teledyne Continental Motors. All rights reserved. This material may not be reprinted, republished, broadcast, or otherwise
altered without the publisher’s written permission. This manual is provided without express, statutory, or implied warranties. The publisher will
not be held liable for any damages caused by or alleged to be caused by use, misuse, abuse, or misinterpretation of the contents. Content is
subject to change without notice. Other products and companies mentioned herein may be trademarks of the respective owners.

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IOF-550 Permold Series Engine Maintenance Manual iii
1 April 2007
Service Document and Technical References
Service Documents and technical information cited in this edition of TCM’s Maintenance
Manual (M-24) are listed in the chart below. Information relevant to this engine series from these
Service Documents has been incorporated in this manual. The full content of TCM service
documents is available on TCMLINK. Refer to the section “Publication Access” in Chapter 1 of
this manual for TCMLINK details.
Service Documents Incorporated in this Manual
Service Document Subject Section Affected
Chapter
MHS-24, Ashless Dispersant
Lubricating Oil
MHS-24, Appendix
Oil specifications Specifications and
Operating Limits
Engine Oil Servicing
Chapter 2
Chapter 7
Chapter 9
MHS-27,“Engine Break-in and
Preservation Oil Break-in and preservation oil specifications Break-in Oil Chapter 2
Chapter 9
M76-4, Installation of Propeller shaft
or nose oil seals Oil seal replacement N/A N/A
M87-15, Alternator Ground Strap Alternator Replacement Alternator Repair Chapter 10
M88-9, Lightning Strikes Unscheduled
Maintenance Inspections Chapter 7
M88-10, Contaminated Fuels Unscheduled
Maintenance Inspections Chapter 7
M89-9, Excessive Crankcase
Pressure Unscheduled Maintenance Inspections Chapter 7
M90-13, Exhaust Valve Stem
Corrosion/Erosion Inspection and Overhaul N/A N/A
SIL93-11A, New Service Document
Format Service Documents Service Document Categories Chapter 1
SIL93-14, CFC Compliance N/A N/A N/A
SIL93-15, General Practices for
Installation of Lock Wire, Tab
Washers, and Cotter Pins
Standard Practices Standard Practices Appendix C
SIL94-5, Mobil AV-1 Oil Authorized Lubricants Authorized Lubricants
Engine Oil Servicing Chapter 2 Chapter 9
SB95-2, Inspection and Maintenance
of Engine Control Cables and
Linkage
Inspection Scheduled Inspections Chapter 7
SB95-7, Manifold Valve Cover
Inspection Inspection Inspection Chapter 7
SIL95-5, Hose and Tubing Installation Hose and tubing
installation Standard Practices Appendix C
CSB96-1, Starter Gear and Clutch
Assembly, P/N 653575 N/A N/A N/A
SB96-7C, Torque Limits Specific torque values Torque Values Appendix B

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iv IOF-550 Permold Series Engine Maintenance Manual
1 April 2007
Service Documents Incorporated in this Manual
Service Document Subject Section Affected
Chapter
SB96-11A, Propeller Strikes and
Hydraulic Lock Inspections Propeller Strikes
Hydraulic Lock Chapter 7
SB96-12, Continued Airworthiness for
TCM Cylinders Inspections Visual Inspection, Compression Check,
Leak Check,
Chapter 7
SIL97-1, “Airworthiness Limitations Airworthiness Limitations Airworthiness Limitations Chapter 3
SID97-2B, TCM Cylinder Warranties N/A N/A N/A
SID97-4C, Cylinder Bore and Piston
Fit Specifications Service Limits Cylinder Removal and Replacement Chapter 10
M97-6, Mandatory Replacement
Parts Inspection and Repair Various Throughout
CSB97-10A, Piston Pin Plug Wear Service Limits Cylinder Removal and
Replacement Chapter 10
CSB98-1B, Intake and Exhaust Valve
Inspection Service Limits Cylinder Removal and Replacement Chapter 10
SIL98-9A, Time Between Overhaul
Periods Engine Specifications, Scheduled Maintenance Overhaul Periods Chapter 7
SIL99-1, Engine Preservation for
Active and Stored Aircraft Engine preservation and returning an engine to
service after storage
Placing an Engine in
Service After Storage N/A
SIL99-2B, Current Listing of
Sealants, Lubricants and Adhesives
Authorized by TCM
Materials Engine Operation in
Extreme Cold Throughout
SB99-8, EngineFuel Injection
System Preservation Fuel Injection system storage Engine Installation N/A
SB00-4A, Australian AVGAS
Contamination Inspection and Operation Inspection Requirements Chapter 7
SB00-10, Fuel Pump Seal Fuel Pump Installation Fuel Pump Installation Chapter 10
SIL00-7A, Oil Gauge Rod Application Inspection and Oil
Servicing Engine Oil Servicing Chapter 9
SIL00-9A, Engine Data Plates N/A N/A N/A
SIL00-11B, Release of new Cylinder
Induction Port Drain Connector Cylinder Assembly Cylinder Assembly Chapter 10
SB01-3A, TCM P/N649304A1 and
P/N649305A1 Gear-driven
alternators
Alternator overhaul Overhaul N/A
SIL02-4, Production Release of new
lightweight starter motors Starter replacement Starter replacement Chapter 10
SIL02-6A, Production Release of
optional intake and exhaust valves N/A N/A N/A

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IOF-550 Permold Series Engine Maintenance Manual v
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Service Documents Incorporated in this Manual
Service Document Subject Section Affected
Chapter
SIL03-1, Cold Weather Operation –
Engine Preheating Preheating procedures Engine Operation in
Extreme Cold and
subsections
Chapter 6
SIL03-2, Currently Active Approved
Spark Plug Application Spark plugs Engine Specifications and Operating Limits Chapter 2
Chapter 9
SIL03-3, Differential Pressure Test
and Borescope Inspection Inspection Criteria Inspection Chapter 7
SB04-11, Valve Guide Application,
Installation and Reaming N/A N/A N/A
SIL04-2, Cylinder Barrel Ultrasonic
Inspection N/A N/A N/A
SIL04-12, TCM Authorized Engine
Adjustments, Component
Replacement and Repositioning
Engine Specification Engine Specifications
and Operating Limits Chapter 2
SB05-2, Overspeed Limitations Unscheduled
Maintenance Inspections Chapter 7
SIL05-3, Engine Specification
Numbers Engine Specification Engine Designation Chapter 2
Service Documents Released After Publication
TCM strives to provide clear, concise, and accurate information and instructions based on best
known engineering data at the time of publication. Ongoing process improvements at TCM may
change a specification or procedure after a manual is released. Service Documents, defined in
Chapter 1, expedite customer notification and serve as the prevailing instruction over conflicting
information until the new information is incorporated in the manual text. Such documents are
part of TCM’s Instructions for Continued Airworthiness. As service documents are received,
note the service documents number, title, and applicable section affected by the service
document in the blank cells provided and insert a copy of the service document behind the last
page of this section.
The Service Documents listed on the following page, released after this manual, affect and
supplement the procedures herein. When performing procedures affected by the service
documents, review the service document content prior to commencing the task to ensure
completion using the most current information and methods. TCM recommends placing a note at
the beginning of the affected section in the manual as a reminder to review the service document.

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vi IOF-550 Permold Series Engine Maintenance Manual
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Mandatory and Critical Service Documents Published After this Manual
Document Number Title Affected Section(s) in this Manual
Other Service Documents Published After This Manual
Document Number Title Affected Section(s) in this Manual

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IOF-550 Permold Series Engine Maintenance Manual vii
1 April 2007
PREFACE
Teledyne Continental Motors (TCM) provides Instructions for Continued Airworthiness based
on the design, testing, and certification of engines and parts for which TCM is the holder of the
Type Certificate (TC) or Parts Manufacturing Approval (PMA) issued by the Federal Aviation
Administration (FAA). Instructions in TCM manuals, which include maintenance, repair limits,
overhaul, and installation, are applicable only to engines and parts supplied by TCM.
This manual, the Installation and Operation Manual and the Overhaul Manual, applicable service
documents, and other related publications constitute the Instructions for Continued
Airworthiness (ICAs) prepared by TCM and approved by the FAA. Pursuant to Federal Aviation
Regulation (FAR) § 43.13, each person performing maintenance, alteration, or preventive
maintenance on the engine or accessories must use methods, techniques, and practices prescribed
in the ICAs.
Except for FAR part 43.3 authorized owner maintenance, TCM ICAs are written for
exclusive use by FAA (or equivalent authority) licensed mechanics or FAA (or equivalent
authority) certified repair station employees working under the supervision of an FAA
licensed mechanic. Information and instructions contained in this manual anticipate the
user possesses and applies the knowledge, training, and experience commensurate with the
requirements to meet the prerequisite FAA license and certification requirements. No other
use is authorized.
Installation of non-TCM parts on a TCM engine constitutes a deviation from TCM type-design
criteria. TCM has not participated in design, test, or certification of any non-TCM parts. TCM
does not provide product manufacturing specifications to aftermarket parts manufacturers and
accepts no liability for the suitability, durability, longevity, or safety of such parts installed on
TCM engines. Installation of non-TCM parts on a TCM engine must be performed using
Instructions for Continued Airworthiness prepared by the manufacturer and approved by the
FAA for the subject installation. TCM ICAs must not be used for such parts.
Service documents may contain general information or information specific to a group of
engines or be in effect for a limited time frame. Service Documents may also contain advance
changes to the ICAs. It is the responsibility of the organization/person maintaining or operating
the engine to verify that current and complete information, including Service Documents, FAA
Airworthiness Directives (ADs), and publications are used.
To facilitate the use of current data, TCM provides information via the Internet on TCMLINK.
The information available includes a listing of the latest manual versions, service documents,
FAA ADs, and other information applicable to the ICAs. This information is free of charge to
TCM engine owners by registering as an Aviator Service Member.
Manuals published since 2003 are available through TCMLINK to Fixed Base Operators (FBOs)
who subscribe to TCM FBO Services. Information available through Aviator Services is also
available through FBO Services. Hardcopies and service subscriptions are available from TCM.
Refer to “Publication Access” listed in Chapter 1.

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viii IOF-550 Permold Series Engine Maintenance Manual
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CONTENTS
Chapter 1 - Introduction...............................................................................................................1-1
Chapter 2 - Engine Description....................................................................................................2-1
Chapter 3 - Special Tools and Supplies.......................................................................................3-1
Chapter 4 - Airworthiness Limitations ........................................................................................4-1
Chapter 5 - Engine Removal and Installation..............................................................................5-1
Chapter 6 - Operational Performance Checks .............................................................................6-1
Chapter 7 - Maintenance Inspections...........................................................................................7-1
Chapter 8 - Troubleshooting........................................................................................................8-1
Chapter 9 - Maintenance and Adjustments..................................................................................9-1
Chapter 10 - Non-Overhaul Repair and Replacement...............................................................10-1
Appendix A - Glossary ...............................................................................................................A-1
Appendix B - Torque Specifications........................................................................................... B-1
Appendix C - Standard Practices................................................................................................ C-1
OVERHAUL MANUAL (OH-24)
Chapter 1 - Introduction...............................................................................................................1-1
Chapter 2 - Engine Description....................................................................................................2-1
Chapter 3 - Special Tools and Supplies.......................................................................................3-1
Chapter 4 - Airworthiness Limitations ........................................................................................4-1
Chapter 5 - Engine Removal and Installation..............................................................................5-1
Chapter 6 - Engine Disassembly..................................................................................................6-1
Chapter 7 - Component Disassembly ..........................................................................................7-1
Chapter 8 - Engine Cleaning........................................................................................................8-1
Chapter 9 - Overhaul Inspection and Repair................................................................................9-1
Chapter 10 - Component Assembly...........................................................................................10-1
Chapter 11 - Engine Assembly..................................................................................................11-1
Chapter 12 - Post-Overhaul Testing ..........................................................................................12-1
Appendix A - Glossary ...............................................................................................................A-1
Appendix B - Torque Specifications........................................................................................... B-1
Appendix C - Standard Practices................................................................................................ C-1
Appendix D- Overhaul Dimensional Limits...............................................................................D-1

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Introduction
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Chapter 1. INTRODUCTION
CONTENTS
Chapter 1. Introduction............................................................................................................. 1-1
1-1. Scope and Purpose of This Manual ...................................................................................... 1-2
1-1.1. Effectivity Symbols ................................................................................................................................... 1-3
1-1.2. Advisories.................................................................................................................................................. 1-3
1-1.3. Using this Manual...................................................................................................................................... 1-3
1-1.4. Compliance................................................................................................................................................ 1-4
1-1.5. Order of Precedence .................................................................................................................................. 1-5
1-2. Publications .......................................................................................................................... 1-6
1-2.1. Service Documents.................................................................................................................................... 1-6
1-2.2. Related Publications .................................................................................................................................. 1-7
1-2.3. Publication Access..................................................................................................................................... 1-8
1-2.4. Publication Changes .................................................................................................................................. 1-8
1-3. TCM Contact Information....................................................................................................1-9
LIST OF TABLES
Table 1-1. Related Publications ................................................................................................... 1-7

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1-2 IOF-550 Permold Series Engine Maintenance Manual
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1-1. Scope and Purpose of This Manual
This manual provides instructions for installing and operating IOF-550-B, C, N, P, and R
Permold series engines, equipped with Full Authority Digital Engine Control (FADEC),
manufactured by Teledyne Continental Motors (TCM):
The models listed above are referred to collectively as the “IOF-550 Permold Series”
engines throughout this manual. Instructions in this manual are specific to the IOF-550
Permold Series engines. For information specific to other TCM engine series, refer to the
appropriate manual.
This manual, along with the overhaul manual provides complete maintenance and
overhaul information for the engine series. The first section provides general maintenance
information including maintenance schedules, inspection and service requirements,
troubleshooting and repair procedures. The second section provides detailed engine
overhaul instructions to return the engine to like-new specifications.
This Maintenance Manual (M-24) is supplemented by the TCM Installation and
Operation Manual (OI-24) and Overhaul Manual (OH-24). Procedures in the OI-24
provide instructions for installing a new TCM engine in an airframe at a Fixed-Base
Operator location. The OI-24 supplements the Pilot’s Operating Handbook with engine-
specific technical information and instructions.
This manual, along with the overhaul manual provides complete maintenance and
overhaul information for the engine series. The maintenance manual provides general
maintenance information including maintenance schedules, inspection and service
requirements, troubleshooting and repair procedures. The overhaul manual provides
detailed engine overhaul instructions to return the engine to like-new specifications.
The maintenance section begins with administrative instructions regarding access to
TCM publications and a list of other manuals that will enable the mechanic to perform
the procedures required to maintain the engine’s airworthiness. Chapter 2 contains a
detailed engine description including engine specifications and operating limits. Chapter
3 lists special tool and supply requirements as well as vendor contact information.
Chapter 4 contains FAA airworthiness limitations. Chapter 5 provides engine removal
and installation instructions. Chapter 6 contains instructions to verify the engines
serviceability after maintenance or overhaul. Chapter 7 provides maintenance and
inspection scheduling as well as unscheduled maintenance and the associated procedures
to accomplish those tasks. Chapter 8 contains troubleshooting procedures and suggested
corrective actions. Chapter 9 contains maintenance and adjustment procedures. Chapter
10 contains non-overhaul repair and replacement procedures, referred to as “heavy
repair.”
The overhaul manual is arranged in the sequential order of tasks required to complete the
overhaul process. Overhaul instructions include disassembly, cleaning and inspection
requirements to determine which parts are suitable for overhaul. Overhaul instructions
also include required replacement items and detailed part refurbishing procedures.
Finally, instructions are provided for detailed engine assembly and post overhaul testing.

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Appendix A in this manual provides acronym definitions and a glossary of common
terms used in the manual. Appendix B lists fastener torque specifications; Appendix C
contains procedures and illustrations for standard practices.
1-1.1. Effectivity Symbols
Slight variations in IOF-550 Series engine models require specific instructions or
illustrations. When peculiar information pertains to only a specific engine model in the
series, a model symbol will precede the information. Effectivity symbols found in this
publication are:
IOF-550-B IOF-550-P IOF-550 engines with an ECP
IOF-550-C IOF-550-R IOF-550 engines with an HSA
IOF-550-N
1-1.2. Advisories
This manual utilizes three types of advisories; defined as follows:
WARNING
A warning emphasizes information which, if disregarded,
could result in severe injury to personnel or equipment failure.
CAUTION: Emphasizes certain information or instructions, which if
disregarded, may result in damage to the engine or accessories.
NOTE: Provides special interest information, which may facilitate
performance of a procedure or operation of equipment.
Warnings and cautions precede the steps to which they apply; notes are placed in the
manner which provides the greatest clarity. Warnings, cautions and notes do not impose
undue restrictions. Failure to heed advisories will likely result in the undesirable or
unsafe conditions the advisory was intended to prevent. Advisories are inserted to ensure
maximum safety, efficiency, and performance. Abuse, misuse, or neglect of equipment
can cause eventual engine malfunction or failure.
1-1.3. Using this Manual
This manual, the Installation and Operation Manual, applicable service documents, and
other related publications constitute the Instructions for Continued Airworthiness (ICAs)
prepared by TCM and approved by the FAA. TCM prepared this manual in a user-
friendly format suited equally for electronic viewing and print. Figures in this manual are
for reference only, depicting the most prominent configuration in the engine series.
Consult the parts catalogs for an illustrated parts breakdown of your specific engine and
each subsystem.
Teledyne Continental Motors (TCM) provides Instructions for Continued Airworthiness
based on the design, testing, and certification of engines and parts for which TCM is the
holder of the Type Certificate (TC) or Parts Manufacturing Approval (PMA) issued by
the Federal Aviation Administration (FAA).
HS
A
ECP
R
P
N
C
B

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WARNING
Instructions in TCM manuals are applicable only to engines
and parts supplied by TCM. TCM ICAs should not be used for
non-TCM parts.
Installation of non-TCM parts on a TCM engine constitutes a deviation from TCM type-
design criteria. TCM has not participated in design, test or certification of any non-TCM
parts. TCM does not provide product manufacturing specifications to aftermarket parts
manufacturers and accepts no liability for the suitability, durability, longevity, or safety
of such parts installed on TCM engines. Installation of non-TCM parts on a TCM engine
must be performed using Instructions for Continued Airworthiness prepared by the
manufacturer and approved by the FAA for the subject installation.
1-1.4. Compliance
The owner/operator and designated mechanic are responsible for ensuring the engine is
maintained in an airworthy condition, including compliance with applicable service
documents and FAA Airworthiness Directives. Engine service life is calculated based on
compliance with the aircraft and engine manufacturer’s required instructions, inspections
and maintenance schedule. Failure to comply may void the engine warranty.
WARNING
Prior to authorizing engine installation or maintenance, the
owner must ensure the mechanic meets the requirements of
FAR 65 and must follow FAR parts 43, 91 and 145 as
applicable.
Except for FAR part 43.3 authorized owner maintenance, TCM ICAs are written for
exclusive use by FAA (or equivalent authority) licensed mechanics or FAA (or
equivalent authority) certified repair station employees working under the supervision of
an FAA licensed mechanic. Information and instructions contained in this manual
anticipate the user possesses and applies the knowledge, training and experience
commensurate with the requirements to meet the prerequisite FAA license and
certification requirements. No other use is authorized.
WARNING
Failure to comply with ICAs may result in injury or
subsequent engine failure. Pursuant to Federal Aviation
Regulation (FAR) § 43.13, each person performing
maintenance, alteration or preventive maintenance on an
engine or accessory must use methods, techniques, and
practices set forth in the Instructions for Continued
Airworthiness or other methods, techniques, or practices
acceptable to the Administrator.
This manual must be used in conjunction with FAA Advisory Circular 43.13-1B
“Acceptable Methods, Techniques and Practices” as well as Teledyne Continental Motors
Maintenance and Overhaul Manual, service documents, related publications and

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accessory manufacturer’s instructions. Pursuant to Federal Aviation Regulation (FAR)
§43.13, each person performing maintenance, alteration or preventive maintenance on the
engine or accessories must use methods, techniques and practices prescribed in the ICAs
or other methods, techniques, or practices acceptable to the Administrator.
1-1.5. Order of Precedence
Teledyne Continental Motors (TCM) engine operating instructions are generated prior to
and independently of the aircraft operating instructions. TCM operating instructions are
developed using factory controlled parameters that are not necessarily the same as those
specifications required to satisfy a specific aircraft/engine installation.
WARNING
The aircraft operator must use the airframe manufacturer’s
operating instructions found in the Airplane Flight Manual
/Pilot’s Operating Handbook/ (AFM/POH) while operating the
aircraft unless the AFM/POH directs otherwise.
Refer to the AFM/POH published by the airframe manufacturer for operating instructions
and specifications relative to your aircraft.
WARNING
New or updated Instructions for Continued Airworthiness may
be contained in TCM Service Documents. Service Documents
applicable to the engine or accessories within the scope of this
manual must be consulted and complied with prior to
performing any installation, maintenance, or overhaul
function.
New information contained in service documents may override the instructions contained
in this manual. Prior to commencing engine maintenance, consult TCMLINK to verify
the current status of the ICAs relating to the intended procedure.

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1-6 IOF-550 Permold Series Engine Maintenance Manual
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1-2. Publications
1-2.1. Service Documents
Six categories of Service Documents may be issued by TCM ranging from mandatory
(Category 1) to informational (Category 6). Definitions of the categories are listed below:
NOTE: Upon FAA approval, all TCM service documents are
published and available on TCMLINK. Service Documents which
contain updates to the Instructions for Continued Airworthiness
must be inserted in the affected manual until such time the manual
is revised to include the Service Document instructions or the
Service Document is cancelled or superseded. Affected manuals
will be referenced in all Service Documents containing updates to
the manufacturer’s Instructions for Continued Airworthiness.
Procedure
Category 1: Mandatory Service Bulletin (MSB)
Used to identify and correct a known or suspected safety hazard which has been
incorporated in whole or in part into an Airworthiness Directive (AD) issued by the FAA
or have been issued at the direction of the FAA by the manufacturer requiring compliance
with an already-issued AD (or an equivalent issued by another country’s airworthiness
authority). May contain updates to TCM’s Instructions for Continued Airworthiness to
address a safety issue.
Category 2: Critical Service Bulletin (CSB)
This category identifies a condition that threatens continued safe operation of an aircraft,
persons or property on the ground unless some specific action (inspection, repair,
replacement, etc.) is taken by the owner or operator. Documents in this category are
candidates for incorporation into an FAA Airworthiness Directive. May contain updates
to TCM’s Instructions for Continued Airworthiness to address a safety issue.
Category 3: Service Bulletin (SB)
Information which the product manufacturer believes may improve the inherent safety of
an aircraft or aircraft component; this category includes the most recent updates to
Instructions for Continued Airworthiness.
Category 4: Service Information Directive (SID)
The manufacturer directs the owner/operator/mechanic in the use of a product to enhance
safety, maintenance or economy. May contain updates to TCM’s Instructions for
Continued Airworthiness in the form of maintenance procedures or specifications.
Category 5: Service Information Letter (SIL)
This category includes all information (not included in categories 1 through 4) that may
be useful to the owner/operator/technician. May contain updates to TCM’s Instructions
for Continued Airworthiness for optional component installations, which are not covered
in the Applicable Operator, Maintenance, or Overhaul Manuals.

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Category 6: Special Service Instruction (SSI)
This category is used to address an issue limited to specific model and/or serial number
engines. TCM will distribute SSI notification directly to the affected engine’s owners.
SSIs will not be included in the general service document set but will be made available
through TCM Customer Service to owners of the affected engines only. An SSI may
contain updates to the Instructions for Continued Airworthiness applicable to the listed
engines.
1-2.2. Related Publications
The chart below lists related publications, source, and accessibility relevant to installing,
maintaining, and overhauling the IOF-550 series engines.
WARNING
Use only the latest revision of all publications. Using
superseded information may jeopardize engine airworthiness.
Table 1-1. Related Publications
Publication
Supplied
With
Engine
Internet
via
TCMLINK*
Order
From
TCM
Available
From
Manufacturer
TCM Publications
Installation and Operation Manual (OI-24) Yes Yes Yes N/A
Overhaul Manual (OH-24) No Yes Yes N/A
Starter Service Instructions (X30592) No Yes Yes N/A
Lightweight Starter Service Instructions (STR-01) No Yes Yes N/A
Alternator Service Instructions (X30531-3) No Yes Yes N/A
Parts Catalogues No Yes No N/A
Detailed Model Specifications No No Yes N/A
Service Documents No Yes Yes N/A
Material Handling Specifications (MHS) No No Yes N/A
Supplier Bulletins
FAA Airworthiness Directives No Yes No N/A
Accelagold No Reference No Yes
Emhart Fastening Teknologies No Reference No Yes
Accessory Documents
Kelly Aerospace Power Systems Alternator Overhaul
Manual(OE-A2) No Reference No Yes
Kelly Aerospace Power Systems Lightweight Series
Alternator Maintenance Manual (ES1010-1/2) No Reference No Yes
Kelly Aerospace Power Systems Lightweight Series Gear
Driven Alternator Maintenance Manual (ES1011) No Reference No Yes
*TCMLINK Information Services® provides 24-hour-a-day access via the Internet. If you are a TCMLINK
subscriber, you can access TCMLINK to confirm and review the latest revision of this manual. If you have not
subscribed to TCMLINK through TCM and are using hardcopies, contact TCM listed in the “TCM Contact
Information” section of this chapter to confirm that you have the latest revision of the manual.

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1-2.3. Publication Access
TCMLINK Alpha Services, Information Services, Aviator Services, and FBO Services
programs provide an array of benefits including access to electronic versions of TCM
technical publications (manuals, service documents, and parts catalogs) via the Internet.
Aviator Services and Alpha Services memberships are free to TCM engine owners. FBO
and Information Services are available with a paid subscription fee. Contact a TCM
distributor to discuss service subscription options and pricing or visit our website (See
Contact Information).
Printed TCM publications may be ordered through Teledyne Continental Motors
authorized distributors via the Internet at TCMLINK. Your TCM printed document
purchase includes three years of updates at no extra charge. Use “TCM Contact
Information”, or our Internet website.
1-2.4. Publication Changes
The instructions in this manual represent the best and most complete information
available at the time of publication. Product or process improvements may trigger
changes to existing product design specifications or procedures contained in publications.
As new technical information becomes available, TCM will deliver the updated
information to the customer in the most expedient manner.
WARNING
New information may be contained in Teledyne Continental
Motors service documents. Service documents applicable to
engines and accessories within the scope of this manual must
be complied with as defined in these documents. This manual,
together with TCM’s Installation and Operation Manual (OI-
24), Overhaul Manual (OH-24), Service Documents, and other
related publications noted constitute the Instructions for
Continued Airworthiness (ICAs) prepared by Teledyne
Continental Motors and approved by the Federal Aviation
Administration (FAA).
Teledyne Continental Motors releases publication changes in the form of either change
pages or complete publication revisions, depending upon the extent of change. Service
Documents may supplement or replace technical information contained in one
publication or an entire series of publications. Such Service Documents represent a
change to the published ICA until the individual publications incorporate the latest
technical information.
1-2.4.1. Update/Change Distribution
Updates are available via TCMLINK upon notification of FAA document approval. TCM
notifies engine owners of technical publication changes free of charge. TCM notifies
current TCMLINK service subscribers by mail as publications are updated. Current
subscribers receive a complete publication library on CD delivered quarterly. Printed
publication subscribers receive printed changes and revisions as they are released.

Teled
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Introduction
IOF-550 Permold Series Engine Maintenance Manual 1-9
1 April 2007
1-2.4.2. Suggestions and Corrections
Teledyne Continental Motors solicits and encourages user comments regarding suggested
changes to this manual. Direct recommended changes or questions to the attention of
“Publications” at the TCM address listed under “TCM Contact Information”.
Notify TCM Customer Service immediately, using our toll-free number, if you discover
incorrect information which adversely affects safety.
1-3. TCM Contact Information
Teledyne Continental Motors is available to answer technical questions and encourages
suggestions regarding products, parts, or service. If customers have an inquiry or require
technical assistance, they should contact their local TCM distributor or TCM field
representative. To contact TCM, refer to the contact information below:
Teledyne Continental Motors, Inc.
P. O. Box 90
Mobile, AL 36601
Toll Free Customer Service Phone Numbers: 888-826-5465
Internet Address: http://www.tcmlink.com

Introduction Teled
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1-10 IOF-550 Permold Series Engine Maintenance Manual
1 April 2007
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Teled
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Engine Description
IOF-550 Permold Series Engine Maintenance Manual 2-1
1 April 2007
Chapter 2. ENGINE DESCRIPTION
CONTENTS
Chapter 2. Engine Description.................................................................................................. 2-1
2-1. General Engine Description.................................................................................................. 2-3
2-1.1. Engine Model Number Definition ............................................................................................................. 2-4
2-1.2. Cylinder Number Designations ................................................................................................................. 2-4
2-2. Detailed Engine Description................................................................................................. 2-5
2-2.1. Crankcase .................................................................................................................................................. 2-5
2-2.2. Engine Drive Train .................................................................................................................................... 2-6
2-2.3. Cylinders.................................................................................................................................................... 2-9
2-2.4. Lubrication System.................................................................................................................................. 2-11
2-2.5. Full Authority Digital Engine Control..................................................................................................... 2-16
2-2.6. Fuel System ............................................................................................................................................. 2-23
2-2.7. Starter Assembly...................................................................................................................................... 2-27
2-2.8. Alternator................................................................................................................................................. 2-27
2-2.9. Engine Cooling........................................................................................................................................ 2-28
2-2.10. Induction System ................................................................................................................................... 2-29
2-2.11. Exhaust .................................................................................................................................................. 2-30
2-3. Engine Specifications and Operating Limits...................................................................... 2-30
2-3.1. IOF-550-B Specifications and Operating Limits..................................................................................... 2-31
2-3.2. IOF-550-C Specifications and Operating Limits..................................................................................... 2-33
2-3.3. IOF-550-N, P, and R Specifications and Operating Limits ..................................................................... 2-35
2-3.4. Accessory Drive Ratios ........................................................................................................................... 2-37
2-3.5. Oil Specifications .................................................................................................................................... 2-37
2-3.6. Performance Data .................................................................................................................................... 2-38
LIST OF TABLES
Table 2-1. IOF-550-B Specifications & Operating Limits ........................................................ 2-31
Table 2-2. IOF-550 C Specifications & Operating Limits ........................................................ 2-33
Table 2-3. IOF-550-N, P, and R Specifications & Operating Limits ........................................ 2-35
Table 2-4. Accessory Drive Ratios, Rotation, Speed, Torque & Moments...............................2-37
Table 2-5. Engine Oil Type Requirements ................................................................................ 2-37

Engine Description Teled
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2-2 IOF-550 Permold Series Engine Maintenance Manual
1 April 2007
LIST OF FIGURES
Figure 2-1. Engine Model Identifier ............................................................................................ 2-4
Figure 2-2. Cylinder Number Designation .................................................................................. 2-4
Figure 2-3. Crankcase .................................................................................................................. 2-5
Figure 2-4. Engine Drive Train.................................................................................................... 2-6
Figure 2-5. Crankshaft ................................................................................................................. 2-7
Figure 2-6. Updraft Cylinder Assembly .................................................................................... 2-10
Figure 2-7. Cross-flow Cylinder Assembly............................................................................... 2-10
Figure 2-8. Lubrication Schematic ............................................................................................ 2-12
Figure 2-9. Oil Pump ................................................................................................................. 2-13
Figure 2-10. Oil Cooler.............................................................................................................. 2-15
Figure 2-11. IOF-550-B & C FADEC components................................................................... 2-17
Figure 2-12. IOF-550-N, P & R FADEC components .............................................................. 2-18
Figure 2-13. Two-Lamp HSA Panel.......................................................................................... 2-21
Figure 2-14. HSA with Battery Condition Monitor Panel......................................................... 2-21
Figure 2-15. Engine Control Panel ............................................................................................ 2-22
Figure 2-16. Engine Data Interface............................................................................................ 2-22
Figure 2-17. IOF-550-B & C Fuel Injection System ................................................................. 2-23
Figure 2-18. IOF-550 N, P & R Fuel Injection System............................................................. 2-24
Figure 2-19. Fuel Pump ............................................................................................................. 2-25
Figure 2-20. FADEC Fuel Injector and Solenoid ...................................................................... 2-26
Figure 2-21. Starting System ..................................................................................................... 2-27
Figure 2-22. Engine Cooling Airflow........................................................................................ 2-28
Figure 2-23. IOF-550-B Updraft Induction Airflow.................................................................. 2-29
Figure 2-24. Downdraft (Crossflow) Induction Airflow ........................................................... 2-30
Figure 2-25. IOF-550-B and C Fuel Flow vs. Brake Horsepower............................................. 2-39
Figure 2-26. IOF-550-B and C Sea Level Performance ............................................................ 2-40
Figure 2-27. IOF-550-N, P, and R Full Rich Fuel Flow vs. Brake Horsepower ....................... 2-41
Figure 2-28. IOF-550-N, P, and R Full Rich Sea Level Performance....................................... 2-42