1D-108 Engine Mechanical: For J20 Engine
Pistons, Piston Rings, Connecting Rods and Cylinders Components
S5JB0A1426036
Pistons, Piston Rings, Connecting Rods and
Cylinders Removal and Installation
S5JB0A1426037
Removal
1) Remove engine assembly from vehicle referring to
“Engine Assembly Removal and Installation: For J20
Engine”.
2) Remove oil pump with oil pump strainer. Refer to “Oil
Pump Removal and Installation: For J20 Engine in
Section 1E” for removal.
3) Remove cylinder head. Refer to “Valves and
Cylinder Head Removal and Installation: For J20
Engine” for removal.
4) Mark cylinder number on all pistons, connecting rods
and connecting rod caps.
5) Remove connecting rod bearing caps.
6) Clean carbon from top of cylinder bore before
removing piston from cylinder.
7) Push piston and connecting rod assembly out
through the top of cylinder bore.
Installation
1) Apply engine oil to pistons, rings, cylinder walls,
connecting rod bearings and crank pins.
NOTE
Do not apply oil between connecting rod and
bearing or between bearing cap and bearing.
2) When installing piston and connecting rod assembly
into cylinder bore, point front mark (3) on piston head
to crankshaft pulley side (1).
1. Top ring
: “TOP” mark provided on piston ring comes to facing up.
8. Piston pin
2. 2nd ring
: “TOP” mark provided on piston ring comes to facing up.
9. Piston pin circlip
3. Oil ring
10. Connecting rod bolt
: Check connecting rod bolt, plastic deformation tightening bolt, for deformation when
reuse it due to plastic deformation tightening referring to “Connecting Rod Bolt” under
“Pistons, Piston Rings, Connecting Rods and Cylinders Inspection and Cleaning: For
J20 Engine” if it is reused.
4. Piston
: 15 N
⋅
m (1.5 kgf-m, 11.0 lb-ft) 45
°
and 45
°
by the specified procedure.
5. Connecting rod
: Apply engine oil to sliding surface of each part.
6. Connecting rod bearing cap
: See “A”
: Do not reuse.
7. Connecting rod bearing
: See “B”
“A”: Point arrow mark on cap to crankshaft pulley side. Do not apply engine oil to inner surface of bearing cap.
“B”: Do not apply engine oil between con-rod big end and bearing, between cap and bearing.
I5JB0A142048-02
2. Flywheel side
I5JB0A142049-01
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