Page 169 of 2103
6547
Removal steps
1. Roll stopper bracket, front
2. Engine support bracket, front
3. Exhaust pipe support bracket
4. Roll stopper bracket, rear
BRACKET
ENGINE OVERHAUL Bracket
REMOVAL AND INSTALLATION
TSBRevision
Page 170 of 2103
Page 171 of 2103

CONTENTS
CAMSHAFT AND CAMSHAFT OIL
SEAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
CRANKSHAFT FRONT OIL SEAL. . . . . . . . . .25
CRANKSHAFT PULLEY. . . . . . . . . . . . . . . . . . .19
CRANKSHAFT REAR OIL SEAL
. . . . . . . . . .
CYLINDER HEAD GASKET. . . . . . . . . . . . . . . .29
ENGINE ASSEMBLY. . . . . . . . . . . . . . . . . . . . . .14
GENERAL INFORMATION. . . . . . . . . . . . . . . . . .2
OIL PAN AND OIL SCREEN . . . . . . . . . . . . . . .24
ON-VEHICLE SERVICE
. . . . . . . . . . . . . . . . . . . . .8
Basic idle Speed Adjustment. . . . . . . . . . . . . . . . . . . . . Refer to GROUP
Compression Pressure Check. . . . . . . . . ..
Curb Speed Check . . . . . . . . . ...
Drive Tension
Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mixture Check . . . . . . . . . . . . . . . . .. . . . . . ..
Ignition Timing Check. . . . . . . . .....................
Lash Adjuster Check . . . . . . . . . . . . . . . . .
......
. . . . .
Manifold Check . . . . . . . . . . . . .13
SEALANTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
SERVICE SPECIFICATIONS. . . . . . . . . . . . . . . . .3
SPECIAL TOOLS. . . . . . . . . . . . . . . . . . . . . . . . . . .4
TIMING BELT. . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . .
7
Page 172 of 2103
ENGINE General Information
GENERAL
itemsSpecifications
OHV, DOHC
Number of cylinder 4
Bore mm (in.)87.5 (3.445)
Stroke mm (in.)8 3 . 0 ( 3 . 2 8 7 )
Piston displacement 1,996 (121.8)
Compression ratio
9.6
Firing order
Valve timing Intake
Opens 1.3” BTDC
[Measured at 0.5
mmCloses 39.7” ABDC .
Exhaust Opens36” BBDC
Closes 1.1” ATDC
Lubrication system Pressure feed-full flow filtration
Oil pump type Trochoid type
a
TSB RevisionI
Page 173 of 2103

ENGINE ‘Service
SERVICE SPECIFICATIONS
Items
Drive belt
(For
generator)
Standard value Limit
TensionWhen checked
(Ibs.) When a new belt is installed
When a used belt is installed
110)
DeflectionWhenchecked9.0
mm (in.)When a new belt is installed 7.5 10.5
value> 9.0 12.0
Drive beltTensionWhenchecked
(For power
When a new belt is installed
steering oil
When a used belt is installed
without
mm (in.)When a new belt is installed
When a used belt is installed
Drive belt
TensionWhenchecked
(For power
When a new belt is installedsteering oil
and A/C When a used belt is installed
DeflectionWhenchecked
mm (in.)When a new belt is installed
When a used belt is installed
Curb idle speed
mixtureCO contents
HC contents ppm
pressure (at 250 400 (psi)
pressure difference of all cylinder
ntake manifold vacuum
110)
110)
6.5 9.5
1 1 4 . 6 )
608 706 (136.7
412 510 (92.8 114.6)
8.0 9.0
100
0.5 or less
100 or less
1 , 5 5 1
max. 25%
min. 60 (18)
SEALANTS
Items
Semi-circular packing
Oil pan gasket to
Oil pump to
Outside camshaft bearing cap Specified sealant
Loctite 5699 or equivalent
Loctite 518 or equivalent
TSB Revision
Page 174 of 2103
ENGINE Special
SPECIAL TOOLS
ToolTool number
and name
502
Scan tool
(MUT-II)
ROM Pack
MUT-II
Interface
cartridge
545
Adapter harness
Remover
crankshaft
damper/sprocket
Remover
puller damper
Remover
crankshaft
sprocket Supersession
502
544
545
TSB
Revision
1026
Application
speed inspection
Crankshaft sprocket removal
Page 175 of 2103
Special Took
Oil seal installer
seal
SERVICE TOOL
Revision
Page 176 of 2103
E N G I N E T o o l s
ToolTool numberSupersession
and name
0991453
453
Engine hanger
assembly the engine assembly
removal and of the ,..
seal installation
Oil seal pilot installer
6995059
6926-2
Crankshaft oil
seal installer
R e v i s i o n