Toyota 3B Operating instructions

TOYOTA
REPAI R MANUAL
Aug ., 1988

FOREWORD
This repair manual has been prepared to provide information
covering general service repairs for the 8,38, 11B, and 14B
engines mounted on the TOYOTA LAND CRUISER, DYNA and
COASTER.
Applicable models:
8J60,70,73,75 series
8U60, 61, 65, 66,70,76, 83, 84, 87,88, 91, 94,
96 series
8Y34, 43 series
BB21 ,22, 23,30, 32 series
All information in this manual is based on the latest product
information at the time of publication. However specifications
and procedures are subject to change without prior notice.
TOYOTA MOTOR CORPORATION

TOYOTA
B. 38. 11B, 14B- ENGINE
REPAIR MANUAL
INTRODUCTION
ENGINE MECHANICAL
FUEL SYSTEM
COOLING SYSTEM
LUBRICATION SYSTEM
STARTING SYSTEM
CHARGING SYSTEM
SERVICE SPECIFICATIONS
STANDARD BOLT TOROU E SPECIFICATIONS
SST AND SSM
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O 1994 TOYOTA MOTOR CORPORATION
All rights reserved. This book may not be
reproduced or copied, in whole or in part,
without the written permission of Toyota
Motor Corporation.

tN-1
INTRODUCTION
Page
HOW TO USE THIS MANUAL ........ IN-2
IDENTIFICATION INFORMATION IN-4
GENERAL REPAIR INSTRUCTIONS IN-4
ABBREVIATIONS USED IN THIS MANUAL IN.7 r[

rtN-2 INTRODUCTION - How to Use This Manual
HOW TO USE THIS MANUAL
To assist in finding your way through this manual, the Section
Title and major heading are given at the top of every page'
An INDEX is provided on the 1st page of each section to guide
you to the item to be repaired.
At the beginning of each section, PRECAUTIONS are given
that pertain to all repair operations contained in that section'
Read these precautions before starting any repair task'
TROUBLESHOOTING tables are included for each system to
help you diagnose the system problem and find the cause' The
repaii for eich possible cause is referenced in the remedy
column to quickly lead you to the solution.
REPAIR PROCEDURES
Most repair operations begin with an overview illustration. lt
identifies the components and shows how the parts fit together.
Example:
25O {18, 25}
lnjection Pipe (38)
K& JD*'
-cm (ft-lb, N'm) : Specified torque
a Non-reusable Part

INTRODUCTION - How to Use This Manual rN-3
ride
rto
lhe
edy
lllustration:
what to do and where
The procedures are presented in a step-by-step format:
. The illustration shows whatto do and where to do it.
o The task heading tells what to do.
o The detailed text tells how lo perform the task and gives other
information such as specifications and warnings.
Example:
_---,-f"sk heading: what to do
3. REMOVE INJECTION NOZZLES
Using SST, remove the four nozzles, seats and gaskets.
ssr 09260-4601 3 (09268-4601 2)
..\
Set part No. Component part No.
lnstall and torque the four 1e22lgs.-Detailed text:
Torque: 7OO kg-cm (51 ft-lb, 69 N'm) how to do task
I
I
Torque Specifications
This format enables the experienced technician with a FAST
TRACK to the information needed. The upper case heading can
be read at a glance and only when necessary, the test below it
provides detailed information. lmportant specifications and
warnings always stand out in bold type.
REFERENCES
References have been kept to a minimum. However, when they
are required, you are given the page lo go to.
SPECIFICATIONS
Specifications are presented in bold type throughout the text in
the applicable step. You never have to leave the procedure to
look up your specs. All specifications are also found in Appendix
A, specifications, for quick reference.
CAUTIONS. NOTICES, HINTS:
. CAUTIONS are presented in bold type, and indicate there is a
possibility of injury to you or other people.
. NOTICES are also presented in bold type and indicate there is
a possibility of damage to the components being repaired.
. HINT are separated from the text but do not appear in bold.
They provide additional information to help you efficiently
perform the repair.
.h
er.

rINTRODUCTION - ldentification lnformation, General lnstructions
IDENTIFICATION IN FORMATION
ENGINE SERIAL NUMBER
The engine serial number is stamped on the left side of the
cylinder block.
GENERAL REPAIR INSTRUCTIONS
1. Use fender, seat and floor covers to keep the vehicle clean
and prevent damage.
2. During disassembly, keep parts in order to facilitate re-
assembly.
3. Observe the following:
(a) Before performing electrical work, disconnect the
negative cable from the battery terminal'
(b) lf it is necessary to disconnect the battery for inspec-
tion or repair, always disconnect the cable from the
negative (-)terminal which is grounded to the vehicle
bodY.
(c) To prevent damage to the battery terminal post,
loosen the terminal nut and raise the cable straight
up without twisting or Prying it.
(d) Clean the battery terminal posts and cable terminal
with a shop rag. Do not scrape them with a file or
other abrasive object.
(e) lnstall the cable terminal to the battery post with the
nut loose, and tighten the nut after installation' Do
not use a hammer to tap the terminal onto the post'
(f) Be sure the cover for the positive (+) terminal is
properly in Place.
4. Check hose and wiring connectors to make sure they are
securely and correctly connected.
5. Non-reusable Parts
(a) Always replace cotter pins gaskets, O-rings, oil seals,
etc. with new ones.
(b) Non-reusable parts are indicated in the component
illustrations bY the " <)" sYmbol.

INTRODUCTION - General Repair lnstructions tN-5
Seal Lock Adhesive
CORRECT
Precoated Parts
Precoated parts are bolts and nuts, etc. Which are coated
with ? seal lock adhesive at the factory.
(a) lf a precoated part is tightened, loosened or caused to
move in any way, it must be recoated with the
specified adhesive.
(b) Recoating of Precoated Parts
(1) Clean off the old adhesive from the bolt, nut or
installation part threads.
(21 Dry with compressed air.
(3) Apply the specified seal lock adhesive to the bolt
or nut threads.
(c) Precoated parts are indicated in the component illus-
trations by the "*" symbol.
When necessary, use a sealer on gaskets to prevent leaks.
Carefully observe all specifications for bolt tightening
torques. Always use a torque wrench.
Use of special service tools (SST) and special service
materials (SSM) may be required depending on the nature
of the repair. Be sure to use SST and SSM where specified
and follow the proper work procedure. A list of SST and
SSM can be found at the back of this manual.
When replacing fuses, be sure the new fuse is the correct
amperage rating. Do NoT exceed the fuse amp rating or
use one of a lower rating.
Care must be taken when jacking up and supporting the
vehicle. Be sure to lift and support the vehicle at the proper
locations.
(a) lf the vehicle is to be jacked up only at the front or
rear end, be sure to block the wheels in order to
ensure safety.
(b) After the vehicle is jacked up, be sure to support it on
stands. lt is extremely dangerous to do any work on
the vehicle raised on a jack alone, even for a smalljob
that can be finished quickly.
12. Observe the following precautions to avoid damage the
parts:
(a) To disconnect vacuum hoses, pull on the end, not the
middle of the hose.
(b) To pull apart electrical connectors, pull on the con-
nector itself, not the wires.
(c) Be careful not to drop electrical components, such as
sensors or relays. lf they are dropped on a hard floor,
they should be replaced and not reused.
6.
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EM.1
IENGINE MECHANICAL
Page
DESCRTPTTON ........ EM-2
DTESEL ENGTNE DTAGNOSIS ........... .. EM-4
DIESEL ELECTRICAL SYSTEM
DTAGNOSTS I3Bl EM-13
DIESEL ELECTRICAL SYSTEM
DIAGNOSIS [11B and 148] .......
ENGINE TUNE-UP
COMPRESSION CHECK [B and 38] .........
COMPRESSION CHECK [1 1 B and 148] .......
CYLINDER HEAD
TIMING GEARS AND CAMSHAFT
CYLINDER BLOCK
EM-16
EM-19
EM.27
EM-28
EM-29
EM.52
EM-67

EM-2 ENGINE MECHANICAL - Description
DESCRIPTION
B, 38, 1 1 B and 148 ENGINES
The B,38, 11B, and 148 engines are in-line 4-cylinder OHV 8 valve engines with a capacity of 3.O liters (B,
1181, 3.4liters (38) or 3.7 liters (148).
38 Engine (BJ)
148 Engine (BU)
For B and 38 engines, refer to the 38 (BJ) engine, and
for 1 1 B and 148 engines, refer to the 148 (BU) engine. 8S0115 SSO116
8SOr61 BSO162
HINT:
\-