EM-2
Removal and Installation ........................................42
IGNITION COIL, SPARK PLUG AND ROCK-
ER COVER .........................................................
47
Exploded View ........................................................47
Removal and Installation ........................................47
TIMING CHAIN ..................................................50
Exploded View ........................................................50
Removal and Installation ........................................50
Inspection ...............................................................57
CAMSHAFT .......................................................59
Exploded View ........................................................59
Removal and Installation ........................................59
Inspection ...............................................................71
OIL SEAL ...........................................................77
VALVE OIL SEAL .....................................................77
VALVE OIL SEAL : Removal and Installation .........77
FRONT OIL SEAL .....................................................77
FRONT OIL SEAL : Removal and Installation ........78
REAR OIL SEAL .......................................................78
REAR OIL SEAL : Removal and Installation ..........78
CYLINDER HEAD ..............................................80
Removal and Installation ........................................80
Disassembly and Assembly ....................................82
REMOVAL AND INSTALLATION ...............89
ENGINE ASSEMBLY .........................................89
Exploded View ........................................................89
Removal and Installation ........................................89
Inspection ...............................................................92
DISASSEMBLY AND ASSEMBLY .............94
ENGINE STAND SETTING ................................94
Setting ....................................................................94
ENGINE UNIT ....................................................95
Disassembly ...........................................................95
Assembly ................................................................95
OIL PAN (UPPER) .............................................96
Exploded View ........................................................96
Removal and Installation ........................................96
Inspection ...............................................................99
CYLINDER BLOCK .........................................100
Exploded View .......................................................100
Disassembly and Assembly ...................................101
Inspection ..............................................................108
HOW TO SELECT PISTON AND BEARING ...117
Description .............................................................117
Connecting Rod Bearing .......................................117
Main Bearing .........................................................119
SERVICE DATA AND SPECIFICATIONS
(SDS) .........................................................
122
SERVICE DATA AND SPECIFICATIONS
(SDS) ................................................................
122
General Specification ............................................122
Drive Belts .............................................................122
Spark Plug ............................................................123
Exhaust Manifold ..................................................123
Camshaft ...............................................................123
Cylinder Head .......................................................125
Cylinder Block .......................................................127
Connecting Rod Bearing .......................................130
Main Bearing .........................................................131
MR18DE
SYMPTOM DIAGNOSIS ...........................
132
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING ...........................
132
NVH Troubleshooting - Engine Noise ...................132
Use the Chart Below to Help You Find the Cause
of the Symptom .....................................................
133
PRECAUTION ...........................................134
PRECAUTIONS ................................................134
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...............................................................
134
Precaution for Procedure without Cowl Top Cover .134
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ................................
134
Precaution for Drain Coolant .................................135
Precaution for Disconnecting Fuel Piping .............135
Precaution for Removal and Disassembly ............135
Precaution for Inspection, Repair and Replace-
ment ......................................................................
135
Precaution for Assembly and Installation ..............135
Parts Requiring Angular Tightening ......................135
Precaution for Liquid Gasket .................................136
PREPARATION .........................................138
PREPARATION ................................................138
Special Service Tool .............................................138
Commercial Service Tool ......................................140
ON-VEHICLE MAINTENANCE .................142
DRIVE BELTS ..................................................142
Component ...........................................................142
Checking Drive Belts .............................................142
Tension Adjustment ..............................................142
Removal and Installation .......................................142
AIR CLEANER FILTER ....................................144
Removal and Installation .......................................144
SPARK PLUG ...................................................145
ENGINE ASSEMBLY
EM-91
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1. Remove front wheel sensor (LH and RH) for ABS from steering knuckle. Refer to BRC-83, "Removal and
Installation".
2. Remove brake caliper assembly with piping connected from steering knuckle. Temporarily secure it on the
vehicle side with a rope to avoid load on it. Refer to BR-24, "
Component".
3. Remove drive shafts (LH and RH) from steering knuckle. Refer to FAX-7, "
Removal and Installation".
4. Remove exhaust front tube. Refer to EX-5, "
Component".
5. Remove rear torque rod.
NOTE:
A/T models shown.
6. Remove A/T cooler hoses from transmission (A/T models).
7. Preparation for the separation work of transaxle is as follows:
Remove transaxle joint bolts which pierce at oil pan (upper) lower rear side. Refer to EM-89, "
Exploded
View".
Removal
1. Install engine slinger to cylinder head front left side (A) and rear
right side (B) and support the engine with a hoist.
2. Lift with a hoist and secure the engine in appropriate position.
3. Use a suitable tool to securely support bottom of the engine and
the transaxle assembly and simultaneously adjust hoist tension.
CAUTION:
Put a piece of wood or something similar as the supporting
surface, secure a completely stable condition.
PBIC3737E
PBIC3738E
PBIC3223J
CYLINDER BLOCK
EM-101
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Disassembly and AssemblyINFOID:0000000001381434
DISASSEMBLY
1. Remove oil pan (upper). Refer to EM-96, "Removal and Installation".
2. Remove cylinder head. Refer to EM-80, "
Removal and Installation".
3. Remove knock sensor.
CAUTION:
Carefully handle knock sensor avoiding shocks.
4. Remove crankshaft position sensor (POS) and cover.
CAUTION:
Avoid impacts such as a dropping.
Never disassemble.
Keep it away from metal particles.
Never place the sensor where it is exposed to magnetism.
5. Remove piston and connecting rod assembly with the following procedure:
Before removing piston and connecting rod assembly, check the connecting rod side clearance. Refer to
EM-108, "
Inspection".
a. Position crankshaft pin corresponding to connecting rod to be removed onto the bottom dead center.
b. Remove connecting rod cap.
c. Using a hammer handle or similar tool, push piston and connect-
ing rod assembly out to the cylinder head side.
CAUTION:
Be careful not to damage matching surface with connect-
ing rod cap.
Be careful not to damage the cylinder wall and crankshaft
pin, resulting from an interference of the connecting rod
big end.
6. Remove connecting rod bearings.
CAUTION:
Identify installation positions, and store them without mixing up.
7. Remove piston rings form piston.
Before removing piston rings, check the piston ring side clearance. Refer to EM-108, "
Inspection".
Use a piston ring expander (commercial service tool) (A).
CAUTION:
When removing piston rings, be careful not to damage
the piston.
Be careful not to damage piston rings by expanding
them excessively.
10. Oil pressure switch 11. Top ring 12. Second ring
13. Oil ring 14. Piston pin 15. Piston
16. Connecting rod 17. Connecting rod bearing (upper) 18. Main bearing (upper)
19. Thrust bearing 20. Crankshaft key 21. Connecting rod cap bolt
22. Connecting rod cap 23. Connecting rod bearing (lower) 24. Main bearing (lower)
25. Crankshaft 26. Signal plate 27. Rear oil seal
28. Flywheel 29. Main bearing cap bolt 30. Main bearing cap
A. Refer to EM-101
KBIA3365J
PBIC3233J
EM-102
< DISASSEMBLY AND ASSEMBLY >[HR16DE]
CYLINDER BLOCK
8. Remove piston from connecting rod.
Use a piston pin press stand (SST) and a press to remove the
piston pin.
CAUTION:
Be careful not to damage the piston and connecting rod.
NOTE:
The joint between the connecting rod and the piston pin is a
press fit.
9. Remove the main bearing cap in the following procedure.
Measure crankshaft end play before loosening main bearing cap bolts. Refer to EM-108, "
Inspection"
a. Loosen and remove bolts in several steps in reverse of the
numerical order shown in the figure.
TORX socket (size: E14) can be used.
b. Remove the main bearing cap from the cylinder block while tapping lightly with a plastic hammer.
10. Remove crankshaft (2).
CAUTION:
Be careful not damage or deform signal plate (1) mounted
on crankshaft.
When setting crankshaft on a flat floor surface, use a
block of wood to avoid interference between signal plate
and the floor surface.
Never remove signal plate unless it is necessary to do so.
NOTE:
When removing or installing signal plate, use TORX socket (size
T40).
11. Pull rear oil seal out from rear end of crankshaft.
12. Remove main bearing (upper and lower) and thrust bearings from cylinder block and main bearing cap.
CAUTION:
Identify installation positions, and store them without mixing up.
ASSEMBLY
1. Fully air-blow engine coolant and engine oil passages in cylinder block, cylinder bore and crankcase to
remove any foreign material.
CAUTION:
Use a goggles to protect eyes.
A : Drift [KV10109730]
B : Center cap [KV10110310]
C : Press stand [ST13030020]
PBIC5270J
: Engine front
PBIC3744E
PBIC3745E
EM-106
< DISASSEMBLY AND ASSEMBLY >[HR16DE]
CYLINDER BLOCK
Press-fit the piston pin (2) from piston surface “A” to the depth
of 2.35 mm (0.092 in).
After finishing work, make sure that the piston (3) moves
freely.
9. Using a piston ring expander (commercial service tool), install piston rings.
CAUTION:
Be careful not to damage piston.
Be careful not to damage piston rings by expanding them excessively.
Position each ring with the gap as shown in the figure referring
to the piston front mark (B).
Install second ring with the stamped mark (E) facing upward.
10. Install connecting rod bearings to connecting rod and connecting rod cap.
When installing connecting rod bearings, apply new engine oil to the bearing surface (inside). Do not
apply engine oil to the back surface, but thoroughly clean it.
Install the bearing in the center position.
NOTE:
There is no stopper tab.
Make sure that the oil holes on connecting rod and connecting rod bearing are aligned.
Install the connecting rod in the dimension shown in the figure.
NOTE:
Install the connecting rod bearing in the center position with the dimension shown in the figure. For ser-
vice operation, the center position can be checked visually.
11. Install piston and connecting rod assembly to crankshaft.
Position crankshaft pin corresponding to connecting rod to be installed onto the bottom dead center.
Apply new engine oil sufficiently to the cylinder bore, piston and crankshaft pin.
Match the cylinder position with the cylinder number on connecting rod to install.
1 : Connecting rod
: Press-fit direction
PBIC3751E
A : Oil ring upper or lower rail gap (either of them)
C : Second ring and oil ring spacer gap
D : Top ring gap
Stamped mark:
Second ring : R
PBIC3588J
1 : Connecting rod
2 : Connecting rod bearing (upper)
3 : Connecting rod bearing (lower)
4 : Connecting rod cap
: Engine front
Dimension “A” : 1.7 - 2.1 mm (0.067 - 0.083 in)
PBIC4169E
CYLINDER BLOCK
EM-107
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Using the piston ring compressor (SST: EM03470000) (A) or
suitable tool, install piston with the front mark on the piston
head facing the front of the engine.
CAUTION:
Be careful not to damage matching surface with con-
necting rod cap.
Be careful not to damage the cylinder wall and crank-
shaft pin, resulting from an interference of the connect-
ing rod big end.
12. Install connecting rod cap.
Match the stamped cylinder number marks (C) on connecting
rod with those on connecting rod cap to install.
13. Inspect outer diameter of connecting rod cap bolts. Refer to EM-108, "
Inspection".
14. Tighten connecting rod bolt with the following procedure:
a. Apply new engine oil to the threads and seats of connecting rod bolts.
b. Tighten connecting rod bolts in several steps.
c. Then turn all bolts 60 degrees clockwise (angle tightening).
CAUTION:
Confirm the tightening angle by using the angle wrench
[SST: KV10112100] (A) or protractor. Avoid judgment by
visual inspection without the tool.
After tightening connecting rod bolts, make sure that crankshaft rotates smoothly.
Check the connecting rod side clearance. Refer to EM-108, "
Inspection".
15. Install oil pan (upper). Refer to EM-96, "
Exploded View".
NOTE:
Install the rear oil seal after installing the oil pan (upper).
16. Install rear oil seal. Refer to EM-96, "
Removal and Installation".
17. Install flywheel.
Secure crankshaft with a stopper plate [SST: KV11105210], and tighten mounting bolts crosswise over
several times.
PBIC3765E
A: Front mark
B: Oil hole
D : Connecting rod big end grade
JPBIA0537ZZ
: 19.6 N·m (2.0 kg-m, 14 ft-lb)
PBIC3753E
CYLINDER BLOCK
EM-111
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Measure the outer diameter of piston pin with a micrometer.
Connecting Rod Small End Clearance
(Connecting rod small end clearance) = (Connecting rod small end inner diameter) – (Piston pin outer diame-
ter)
If the measured value is out of the standard, replace connecting rod assembly and/or piston and piston pin
assembly.
If replacing connecting rod assembly, use "CONNECTING ROD BEARING OIL CLEARANCE" to select con-
necting rod bearing.
CYLINDER BLOCK TOP SURFACE DISTORTION
Using a scraper, remove gasket on the cylinder block surface, and also remove engine oil, scale, carbon, or
other contamination.
CAUTION:
Be careful not to allow gasket flakes to enter engine oil or engine coolant passages.
Measure the distortion on the cylinder block upper face at some
different points in six directions with a straight edge and a feeler
gauge.
If it exceeds the limit, replace cylinder block.
MAIN BEARING HOUSING INNER DIAMETER
Install main bearing cap without main bearings installed, and tighten main bearing cap bolts to the specified
torque. Refer to EM-101, "
Disassembly and Assembly".
Measure the position shown in the figure [5 mm (0.196 in) rear-
ward from main bearing housing front side end surface) in the 2
directions as shown in the figure. The smaller one is the measured
value.
If out of the standard, replace cylinder block and main bearing
caps as an assembly.
NOTE:
These components cannot be replaced as a single unit, because they were processed together.
PISTON TO CYLINDER BORE CLEARANCE
Standard : Refer to EM-127, "Cylinder Block".
PBIC0117E
Standard : Refer to EM-127, "Cylinder Block".
Limit : Refer to EM-127, "
Cylinder Block".
PBIC0121E
1 : Cylinder block
2 : Main bearing cap
: Engine front
Standard : Refer to EM-127, "Cylinder Block".PBIC3879E
HOW TO SELECT PISTON AND BEARING
EM-119
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In grinding crankshaft pin to use undersize bearings, keep the
fillet R (A) [0.8 - 1.2 mm (0.031 - 0.047 in)].
Main BearingINFOID:0000000001381438
HOW TO SELECT MAIN BEARING
When New Cylinder Block and Crankshaft Are Used
1. “Main Bearing Selection Table” rows correspond to main bearing
housing grade on left side of cylinder block.
If there is a corrected stamp mark (B) on cylinder block, use it
as a correct reference.
2. Apply main journal diameter grade stamped on crankshaft front
side to column in the “Main Bearing Selection Table”.
3. Read the symbol at the cross point of selected row and column in the “Main Bearing Selection Table”.
4. Apply the symbol obtained to the “Main Bearing Grade Table” to select main bearing.
NOTE:
Service part is available as a set of both upper and lower.
When Cylinder Block and Crankshaft Are Reused
1. Measure the dimensions of the cylinder block main bearing housing inner diameter and crankshaft main
journal diameter individually. Refer to EM-108, "
Inspection".
2. Apply the measured dimension to the “Main Bearing Selection Table”.
3. Read the symbol at the cross point of selected row and column in the “Main Bearing Selection Table”.
4. Apply the symbol obtained to the “Main Bearing Grade Table” to select main bearing. Bearing undersize table:
Refer to EM-130, "
Connecting Rod Bearing".
PBIC3263J
A : Basic stamp mark
: Engine front
PBIC3760E
A : Main journal diameter grade (No. 1 to 5 from left)
B : Crankshaft pin journal diameter grade (No. 1 to 4 from left)
PBIC3757E