Mitsubishi Montero 1987 User manual

Service Manual
MONTERO
1987 : Volume 2
FOREWORD
This Service Manual has been prepared with the
latest service information available at the time of
publication. It is subdivided into various group
categories and each section contains diagnosis,
disassembly, repair, and installation procedures
along with complete specifications and tightening
references. Use of this manual will aid in properly
performing any servicing necessary to maintain or
restore the high levels of performance and reliability
designed into these outstanding vehicles.
WE SUPPORT
VOLUNTARY TECHNICIAN
CERTIFICATION THROUGH
MITSUBISHI
MOTOR SALES OF AMERICA. Inc.
Mitsubishi Motors corporation reserves the right to make changes in
design or to make additions to or improvements in its products without
imposing any obligations upon itself to install them on its products
previously manufactured.
I
GROUP/SECTION INDEX ‘kme-.
INTRODUCTION ..............................
Electrical ...........................................
Electrical System Parts
Location .........................................
Relays, Control Units, Sensors,
Fuses, Groundings
Inspection of Harness
Connector ......................................
Wiring Harness .............................
Charging System ..........................
Starting System ............................
Ignition System .............................
Meters and Gauges ......................
Lighting System .............................
Wiper and Washer System ..........
Horn ...............................................
Accessory ......................................
Audio System ................................
Back Door Window Defogger ......
Automatic Free-wheeling Hub
Indicator System ..........................
Heaters and Air-conditioning .........
Heaters ..........................................
Air-conditioning ............................
**,
For Engine Chassis & Body refer to
0 1986 Mitsubishi Motors Corporation Printed in Japan

2 INTRODUCTION - How To Use This Manual
HOW TO USE THIS MANUAL
NOOBAAK
CONTENTS
The preceding page contains the GROUP INDEX
which lists the group title and group number.
PAGE NUMBERS
All page numbers consist of two sets of digits
separated by a dash. The digits preceding the dash
identify the number of the group. The digits follow-
ing the dash represent the consecutive page
number within the group. The page numbers can
be found on the top left or right of each page.
TEXT
Unless otherwise specified, each service procedure
covers all models. Procedures covering specific
models are identified by the model codes, or similar
designation (engine type, transmission type, etc.).
A description of these designations is covered in
this unit under “VEHICLE IDENTIFICATION”.
SERVICE PROCEDURES
The service steps are arranged in numerical order
and attentions to be paid in performing vehicle ser-
vice are described in detail in SERVICE POINTS.
DEFINITION OF TERMS
STANDARD VALUE
Indicates the value used as the standard for judging
the quality of a part or assembly on inspection or the
value to which the part or assembly is corrected and
adjusted. It is given by tolerance.
LIMIT
Shows the standard for judging the quality of a part
or assembly on inspection and means the maximum
or minimum value within which the part or assembly
must be kept functionally or in strength. It is a value
established outside the range of standard value.
Installation steps
Indicates incidental operation
piiiKL=l-
Removal steps : The numbers before part names
correspond to numbers in the il-
lustration and indicate the order of
removal.
Disassembly steps : The numbers before part
names correspond to numbers
in the illustration, and indicate
the order of disassembly.
This is provided if installation
cannot be made in the reverse
order of “Removal steps”; omit-
ted if installation in the reverse
order of “Removal steps” is
possible. .
Reassembly steps : Ihis IS provided It reassembly
cannot be made in the reverse
order of “Disassembly steps”;
omitted if reassembly in the
reverse order of “Disassembly
steps” is possible.
\
Classification of
SERVICE ROINTS
Oe : Removal
** : Installation
Oe : Disassembly
I)+ : Reassembly

INTRODUCTION -
How To Use This Manual
3
-L
!
Page number Group title Section title
THERMOSTAT
REMOVAL AND INSTALLATION I
I I
L
1 torque
Removal + I s
0480031
Thermostat kit
Repair kit or set parts are
1. Connectw of water temperature switch
connector (Vehicles with an air condltlon-
eri
2 Connection of radiator upper hose
3 Water outlet fitting
4 Water outlet fitting gasket
B~C 5. Thermostat
I
This number corresponds to
the number in “Removal
steps”, ” Disassembly
steps”, “Installation steps”
or “Reassembly steps”.
NOTE
(1)
(3) q
Nowreusable parts -r
Reverse the removal procedures to reinstall
12) l * : Refer to “Sewce Points of Installation”
SERVICE POINTS OF lNSTALLATlON--
45. INSTALLATION OF THERMOSTAT
Install the thermostat to the Intake manifold as illustrated.
Caution
The thermostat flange fits over the manifold seat;
ensure that the thermostat is not installed at an angle.
An explanation of procedures, notes, etc.
(and reassembly. ’ ’ -1
regarding removal installation disassembly

INTRODUCTION - Vehicle Identification
VEHlCLE IDENTIFICATION
“&LE IDENTIFICATION NUMBER LOCATIOyo(lcAmm
The vehicle identification number (V.I.N.) is located on a plate
attached to the left top side of the instrument panel.
VEHICLE lDENTlFlCATlON CODE CHART PLATEo,,.,
All vehicle identification numbers contain 17 digits. The vehicle
number is a code which tells country, make, vehicle type, etc.
Country Make
!
J- A-
Japan Mitsu-
bishi
Vehicle
type Line
4- F- J-
Multi-
4001 Ibs. MON-
purpose or more TERO
vehicle with
(MPW hydraulic
brakes
7-Truck
\
6th
digit
Price
class
2-
Low
4-
High
7th 8th 9th 10th
digit digit digit digit
Body Engine Check Model
digit year
3- E- 0 H-
3-door 2.6 liters 1 1987
metal- (155.9 2 year
top or C.I.D.) 3
van
9
X
Plant 1ZZ-Zer 1
NOTE
*“Check digit” means a single number or letter X used to verify the accuracy of transcription of vehicle indentification
number.
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INTRODUCTION - Vehicle Identification
VEHICLE IDENTIFICATION NUMBER LIST
FEDERAL
VIN (except sequence number) Brand Engine displacement
JA4FJ43EoHJ
JA4FJ43EoHJ MITSUBISHI 2.555 liters
JA7FJ23EoHJ MONTERO (155.9 C.I.D.)
JA7FJ23EoHJ
5
NOOCC-
Model code
L042GVNJLF
L042GVRJLF
L042GTNSLF
L042GTRSLF
CALIFORNIA (Can also be sold in Federal states.)
VIN (except sequence number)
JA4FJ43EoHJ
JA4FJ43EoHJ
JA7FJ23EoHJ
JB7FJ23EoHJ
Brand
MITSUBISHI
MONTERO
Engine displacement
2.555 liters
(155.9 C.I.D.)
Model code
L042GVNJLH
L042GVRJLH
L042GTNSLH
1 L042GTNSLH
OOK520
VEHICLE INFORMATION CODE PLATE
NOOCO-A
Vehicle information code plate is riveted on the headlight sup-
port panel in the engine compartment.
The plate shows model code, engine model, transmission
model, and body color code.
1. MODEL L042G VNJLF
2. ENGINE G54B
I Engine model
3. TRANS
AXLE KM145
4. COLOR, TRIM
OPT 876
B2 1B76H43
F
Two-tone exterior is shown by the
Two-tone color code
Exterior code
Transaxle model
Montone exterior
color code
exterior code followed by the two
color codes.
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6
INTRODUCTION - Vehicle Identification
CHASSIS NUMBER
STAMPING LOCATION
NOOCE-A
The chassis number is stamped on the side of the frame near
the right rear shock absorber.
CHASSIS NUMBER CODE CHART
LO4 2 V HJOOOOOl
A’ i’
,
VEHICLE SAFETY CERTIFICATION LABEL NOOCF-
The vehicle safety certification label is attached to face of left
door pillar.
This label indicates the month and year of manufacture, Gross
Vehicle Weight Rating (G.V.W.R.), front and rear Gross Axle
Weight Rating (G.A.W.R.), and Vehicle Identification Number
(V.I.N.).
ENGINE MODEL STAMPING
NOOCG-
The engine model number is stamped at the right front side on
the top edge of the cylinder block as shown in the following:
1 Engine model 1 Engine displacement
1 2.555 liters (155.9 C.I.D.)
The engine serial number is stamped near the engine model
number, and the serial number cycles, as shown below
Engine serial number
AA020’toYY=
Number cycling
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INTRODUCTION - Vehicle Identification 7
BODY COLOR CODE
Exterior code
Monotone
B76
Cl9
H43
R52
s70
x15
Two-tone
B21 B76H43
C38C19X13
H15H43X13
R06R52X13
S69S7OX13
X45X1 5H43
NOOCH-
Body color
Dark blue (Metallic)
Brown (Metallic)
Silver (Metallic)
Red
Beige
Black
Silver (Metallic)/
Dark blue (Metallic)
Black/
Brown (Metallic)
Black/
Silver (Metallic)
Black/Red
Black/Beige
Black/
Silver (Metallic)
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8
INTRODUCTION - Precautions Before Service
r
oorn, FOOOl;
FOOOl8
PRECAUTIONS BEFORE SERVICE
PROTECTIN” THE VEHICLE
NOODAAC
If theIre is a likelihood of damaging painted or interior parts
during service operations, protect them with suitable covers
(such as seat covers. fender covers, etc.).
REMOVAL AND DISASSEMBLY
When checking a malfunction, find the cause of the problem.
If it is determined that removal and/or disassembly is neces-
sary, perform the work by following the procedures contained
in this, Workshop Manual.
If punch marks or mating marks are made to avoid error in
assembly and facilitate the assembly work, be sure to make
them in locations which will have no detrimental effect on
performance and/or appearances.
If an area having many parts, similar parts, and/or parts which
are’ symmetrical right and left is disassembled, be sure to
arrange the parts so that they do not become mixed during the
assembly process.
1. Arrange the parts removed in the proper order.
2. Determine which parts are to be reused and which are to
be replaced.
3. If bolts, nuts, etc., are to be replaced, be sure to use only
the exact size specified.,
SPECIAL TOOLS
If other tools are substituted for the special tools to do service
or repair work, there is the danger that vehicle parts might be
damaged, or the mechanic might be injured; therefore, be
sure to use the special tool whenever doing any work for
which the use of one is specified.
PARTS TO IBE REPLACED
If any of the following parts are removed, they must be
replaced with new parts.
1. Oil seals
2. Gaskets (except rocker cover gasket)
3. Packings
4. O-rings
5. Lock washers
6. Cotter pins
7. Self-locking nuts
DO05111
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INTRODUCTION - Precautions Before Service
9
nm (in.) so0059
PARTS
When replacing parts, use MITSUBISHI genuine parts.
VEHICLE WVASHING
If high-pressure car-washing equipment or steam car-washing
equipment is used to wash the vehicle, be sure to maintain the
spray nozzle at a distance of at least 300 mm (1 1.8 in.) from
any plastic parts and all opening parts (doors, luggage
compartment, etc.).
SERVICING THE ELECTRICAL SYSTEM
When servicing the electrical system, disconnect the negative
cable terminal from the battery.
Caution
Before connecting or disconnecting the negative cable, be
sure to turn off the ignition switch and the lighting switch.
(If this is not done, there is the possibility of semiconductor
parts being damaged.)
WIRING HARNESSES
1. Secure the wiring harnesses by using clamps so that there
is no slack. However, for any harness which passes to the
engine or other vibrating parts of the vehicle, allow some
slack within a range that does not allow the engine
vibrations to cause the harness to come into contact with
any of the surrounding parts. Then secure the harness by
using a clamp.
In addition, if a mounting indication mark (yellow tape) is
on a harness, secure the indication mark in the specified
location.
2. If any section of a wiring harness contacts the edge of a
part, or a corner, wrap the section of the harness with tape
or something similar in order to protect it from damage.
F161711
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INTRODUCTION - Precautions Before Service
16Rl263
16R1264 Y16347
3. When disconnecting a connector, be sure to pull only the
connector, not the harness.
4. Disconnect connectors which have catches by pressing in
the direction indicated by the arrows in the illustration.
5. Connect connectors which have catches by inserting the
connectors until they snap.
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INTRODUCTION - Precautions Before Service
11
I
OOY63:
oOY58S
IOA 15A
1 Permissible current 1
Nominal
size
0.3 mm2 AWG22 5A
05mm’ AWG 20
AWG18 ~ zi 13A
0.85 mm2 17A
1.25 mm2 AWG 16 12A 22A
2.0 mm2 AWG14 I 16A 30A
ELECTRICAL COMPONENTS
1. When installing any of the vehicle parts, be careful not to
pinch or damage any of the wiring harnesses.
2. Sensors, relays, etc., are sensitive to strong impacts.
Handle them with care so that they are not dropped or
mishandled.
3. The electronic parts used for relays, etc., are sensitive to
heat, If any service which causes a temperature of 80°C
(176°F) or more is performed, remove the part or parts in
question before carrying out the service.
FUSES AND FUSIBLE LINKS
1. If a blown-out fuse is to be replaced, be sure to use only a
fuse of the specified capacity. If a fuse of a capacity larger
than that specified is used, parts may be damaged and the
circuit may not be protected adequately.
Caution
If a fuse is blown-out, be sure to eliminate the cause of
the problem before installing a new fuse.
2 If additional optional equipment is to be installed in the
vehicle, follow the procedure listed in the appropriate
instruction manual; however, be sure to pay careful
attention to the following points:
(1) In order to avoid overloading the wiring, take the
electrical current load of the optional equipment into
consideration, and determine the appropriate wire size.
(2) Where possible, route the wiring through the existing
harnesses.
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12
INTRODUCTION - Precautions Before Service
(3) If an ammeter or similar instrument is to be connected
to a live-wire circuit, use tape to protect the wire, use a
i clamp to secure the wire, and make sure that there is
, no contact with any other parts.
(4’) Be sure to provide a fuse for the load circuit of the
optional equipment.
FooO281
TUBES AND OTHER RUBBER PARTS
Be careful to avoid spilling any gasoline, oil, etc.. because if it
adheres to any tubes or other rubber parts, they might be
adversely affected.
LUBRICANTS
In accordance with the instructions in this Workshop Manual,
apply the specified lubricants in the specified locations during
assembly and installation.
BRAKE FLUID
Be careful to avoid spilling any brake fluid, because if it
adheres to the vehicle body, the paint coat might be discol-
ored.
DOING SERVICE WORK IN GROUPS OF TWO OR
MORE TECHNICIANS
If the service work is to be done by two or more technicians
extra caution must be taken.
-FOOO3OI
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INTRODUCTION - Precautions Before Service
13
IKITE ON INSTALLATION OF RADIO EQUIPMW&
The computers of the electronic control system has been
designed so that external radio waves will not interfere with
their operation.
However, if antenna or cable of amateur transceiver etc. is
routed near the computers, it may affect the operation of the
computers, even if the output of the transceiver is no more
than 25W.
To protect each of the computers from interference by
transmitter (hum, transceiver, etc.), the following should be
observed.
1. Install the antenna on the roof.
2. Because radio waves are emitted from the coaxial cable of
the antenna, keep it 200 mm (8 in.) away from the
computers and the wiring harness. If the cable must cross
the wiring harness, route it so that it runs at right angles to
the wiring harness.
3. The antenna and the cable should be well matched, and
the standing-wave ratio* should be kept low.
4. A transmitter having a large output should not be installed
in the vehicle.
5. After installation of transmitter, run the engine at idle, emit
radio waves from the transmitter and make sure that the
engine is not affected.
High-frequency
power supply
If an antenna and a cable having different impedances are
connected, the input impedance Zi will vary in accordance
with the length of the cable and the frequency of the
transmitter, and the voltage distribution will also vary in
accordance with the location.
The ratio between this maximum voltage and minimum
voltage is called the standing-wave ratio. It can also be
represented by the ratio between the impedances of the
antenna and the cable.
The amount of radio waves emitted from the cable increases
as the standing-wave ratio increases, and this increases the
possibility of the electronic components being adversely
affected.
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INTRODUCTION - Towing and Hoisting
TOWING AND HOISTING
NOOGA-
This vehicle can only be towed from the front with convention-
al sling-type equipment and tow chain with grab hooks.
If a vehicle is towed from the rear, use a tow dolly.
A lumber spacer (4” x 4” x 55” wood beam) should be placed
forward of under guard and under towing hook/shipping tie
down hook.
Then, attach J-hook to the lower arm.
A safety chain system must be used. This system must be
completely independent of the primary lifting and towing
attachment. Care must be taken in the installation of safety
chains to insure they do not cause damage to bumper, painted
surfaces or lights.
LIFT!NG-GROUND CLEARANCE
Towed vehicle should be raised until wheels are a minimum of
10 cm (4 in.) from the ground. Be sure there is adequate
ground clearance at the opposite end of the vehicle, especially
when towing over rough terrain or when crossing sharp rises
such as curbs. If necessary, ground clearance can be in-
creased by removing the wheels from the lifted end of the
disabled vehicle and carrying the lifted end closer to the
ground. A 20 cm (8 in.) ground clearance must be maintained
between brake drums and ground.
FRONT TOWING PICKUP
The vehicle may be towed on its rear wheels for extended
distances, provided the parking brake is released.
Make cartain the transmission remains in “NEUTRAL”.
SAFETY PRECAUTIONS
The following precautions should be taken when towing the
vehicle.
1. Remove exhaust tips and any other optional equipment,
that interface with the towing sling. Padding (heavy shop
towel or carpeting) should be placed between the towing
sling cross bar and any painted surfaces, and bumper
surfaces.
2. A safety chain system completely independent of the
primary lifting and towing attachment must be used.
3. Any loose or protruding parts of damaged vehicle such as
hoods, doors, fenders, trim, etc., should be secured prior
to moving the vehicle.
4. Operator should refrain from going under a vehicle unless
the vehicle is adequately supported by safety stands.
5. Never allow passengers to ride in a towed vehicle.
6. State and local rules and regulations must be followed
when towing a vehicle.
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INTRODUCTION - Towing and Hoisting
HOISTING
POST TYPE
15
Special care should be taken when raising the vehicle on a
frame contact type hoist. The hoist must be equipped with the
proper adapters in order to support the vehicle at the proper
locations. (See next page)
Conventional hydraulic hoists may be used after determining
that the adapter plates will make firm contact with the side
frame.
FLOOR JACK
A regular floor jack may be used under the front crossmember
or rear axle housing.
Caution
1. A floor jack must never be used on any part of the
underbody.
2. Do not attempt to raise one entire side of the vehicle by
placing a jack midway between front and rear wheels.
This practice may result in permanent damage to the
body.
EMERGENCY JACKING
Jack receptacles are located at the No. 2 crossmember and
rear axle housing to accept the jack supplied with the vehicle
for emergency road service. Always block the opposite wheels
and jack only on a level surface.
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16 INTRODUCTION - Towitng and Hoisting
FRAME CONTACT SUPPORT LOCATIONS
2,350 mm (92.5 in.) Section A-A
NOTE
The locations of the support point shown as Section A-A are
the same as those of the twin post hoist shown in the
illustration (OOW588) below. oow553
LIFTING AND JACKING SUPPORT LOCATIONS
c Twin post hoist
m Floor lack
@B Emergency jacking (jack supplied with the vehicle) OOW588

INTRODUCTION - Geraeral Data and Specifications 17
GENERAL DATA AND SPECIFICATIONS NOOHA-A
OOW556
Description L042G VNJ LFIH VRJLFIH TNSLFIH TRSLF/H
Vehicle dimensions mm (in.)
Overall length
Without tire
spare 0 3,960 (155.9) 3,960 (155.9) 3,960 (155.9) 3,960 (155.9)
With tirespare 0 3,995 (157.3) 3,995 (157.3) 3,995 (157.3) 3,995 (157.3)
Overall width 0 1,680 (66.1) 1,680 (66.1) 1,680 (66.1) 1,680 (66.1)
Overall height 0 1,840 (72.4) 1,840 (72.4) 1,850 (72.8) 1,850 (72.8)
Wheelbase 0 2,350 (92.5) 2,350 (92.5) 2,350 (92.5) 2,350 (92.5)
Tread Front @ 1,400 (55.1) 1,400 (55.1) 1,400 (55.1) 1,400 (55.1)
Rear 0 1,375 (54.1) 1,375 (54.1) 1,375 (54.1) 1,375 (54.1)
Overhang Front @ 745 (29.3) 745 (29.3) 745 (29.3) 745 (29.3)
Rear @ 900 (35.4) 900 (35.4) 900 (35.4) 900 (35.4)
Height at curb weight (wt.)
Front bumper to ground @ 480 (18.9) 480 (18.9) 480(18.9) 480 (18.9)
Rear bumper to ground 440(17.3) 440(17.3) 440(17.3) 440(17.3)
Minimum running ground : 210 (8.3) 210 (8.3) 210 (8.3) 210 (8.3)
clearance
Angle of approach @ 38 38 38” 38
Angle of departure @ 28 28” 28 28
Ramp breakover angle @ 21” 21” 21” 21”
Vehicle weights kg (Ibs.)
Curb weight 1,479 (3,260) 1,493 (3,290) 1,440 (3,175) 1,460 (3,219)
Gross vehicle weight rating 1,910 (4,210) I,91 0 (4,210) 1,910(4,210) I,91 0 (4.210)
Gross axle Front 1,I 00 (2,425) 1,I 00 (2,425) 1,I 00 (2,425) 1,100 (2,425)
weight ratin!g~:+y~ Rear 1,450 (3,197) 1,450 (3,197) 1,450 (3,197) 1,450 (3,197)
Seating,c&ac&~ 4 4 2 2
.’.’ :I’ ;.,* ..,,VU.,
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18 INTRODUCTION - General Data and Specifications
Description L042G VNJLFIH VRJ L.F/H TNSLFIH TRSLFIH
1
Engine
Model No. G54B G54B G54B G54B
Type i In-line OHC In-line OHC In-line OHC In-line OHC
Number of cylinders ‘4 4 4 4
Bore 91 .I mm (3.59 in.) 91 .I mm (3.59 in.) 91 ,I mm (3.59 in.) 91 .I mm (3.59 in.)
Stroke 98.0 mm (3.86 in.) 98.0 mm (3.86 in.) 98.0 mm (3.86 in.) 98.0 mm (3.86 in.)
Piston displacement 2,555 cm” 2,555 cm” 2,555 cm3 2,555 cm3
(155.9 CID) (155.9 CID) (155.9 CID) (155.9 CID)
Compression ratio 8.7 8.7 8.7 8.7
Firing order I-3-4-2 I-3-4-2 1-3-4-2 1-3-4-2
Basic ignitron trming 7” BTDC ? 2” 7” BTDC ? 2” 7” BTDC 2 2” ‘7” BTDC ? 2”
Transmission &transfer case
Model No. KM145 KM148 KM145 KM148
Type 5-speed 4-speed 5-speed 4-speed
manual automatic manual automatic
Cear ratio
Transmjssion 1st 3.967 2.826 3.967 2.826
2nd 2.136 1.493 2.136 1.493
3rd 1.360 1.ooo 1.360 1.000
4th 1.000 0.688 1.ooo 0.688
5th 0.856 - 0.856 -
Reverse 3.578 2.703 3.578 2.703
Transfer case High 1.000 1.000 1.000 1,040
Low 1.944 1.944 1.944 1.944
Final ring ratio
gear 4.625 4.625 4.625 4.625
Zlutch
Type Dry single - Dry single -
disc & disc &
diaphragm diaphragm
spring spring
Chassis
Tire size
Front suspension P225/75R15
Type
Spring constant
(Wheel position)
Rear suspension
Type
Spring constant
At load of 1,OOO-2,500 N
(220-551 Ibs.)
At load of 4,670-8,870 N
(1,030-I ,955 tbs.)
Wishbone compression type
22 N/mm (123 Ibs./in.)
Asymmetrical semi-elliptic leaf spring
22 N/mm (123 Ibs./in.)
50 N/mm (280 Ibs./in.)
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INTRODUCTION - General Data and Specifications / Tightening Torque 19
Description m--__ L042G VNJLFIH VRJLFIH TNSLFIH TRSLFIH
Brakes
We Front Disc
Rear Drum
(Leading and trailing)
Power steering
Gear type Integral type (Recirculating ball nut)
Gear ratio 16.4
Fuel tank capacity 60 liters (15.9 U.S. gal./1 3.2 Imp. gal.)
TIGHTENING TORQUE NOOJA-
Description
Thread for general purposes
(size x pitch) mm
6x 1.0
8x 1.25
10x 1.25
12 x 1.25
14x 1.5
16x 1.5
18x1.5
20x 1.5
22 x 1.5
24x 1.5
Head mark
Nm
3.0-3.9
7.9-I 2
16-23
29-43
48-70
677100
100-l 50
150-I 90
200-260
260-320
Head mark 0 7
ft.lbs. Nm ft.lbs.
I 2.2-2.9 4.9-7.8 3.6-5.8
5.8-8.7 13-19 9.4-14
12-17 27-39 20-29
21-32 47-72 35-53
35-52 77-l 10 57-85
51-77 130-I 60 90-I 20
74-I 10 180-230 130-170
1IO-140 160-320 1 go-240
150-I 90 340-430 250-320
1go-240 420-550 310-410
Description
Taper thread for pipes (size)
PT l/8
PT l/4
PT 318
Nm ft.lbs. Remarks
Internal thread: Aluminum
Internal thread: Cast iron
Internal thread: Aluminum
Internal thread: Cast iron
Internal thread: Aluminum
Internal thread: Cast iron
Tape thread for dry sealed pipes (size)
NPTF l/16
NPTF l/8
NPTF l/4
4.9-7.8
7.9-I 2
7.9-I 2
16-19
19-13
34-45
3.6-5.8
5.8-8.7
5.8-8.7
12-14
14-22
25-33
Internal thread: Aluminum
Internal thread: Cast iron
Internal thread: Aluminum
Internal thread: Cast iron
Internal thread: Aluminum
Internal thread: Cast iron
.
) STB Revision