Piston, Piston Ring and Connecting Rod Removal and Installation

"The content of this article/image reflects the changes identified in TSB - TS 29 08130."


Piston, Piston Ring and Connecting Rod Removal and Installation

Reference: Piston, Piston Ring and Connecting Rod Components:N32A

Caution:
Either type of connecting rods/bolts, type A or B is used.
Identify the type when replacing.
Mixed installation of type A and B can damage the engine.
Be sure to install the same type connecting rods and bolts.

Removal
1) Remove engine assembly from vehicle. (Engine Assembly Removed and Installation): N32A
2) Remove cylinder head. (Valve and Cylinder Head Removal and Installation):N32A
3) Mark cylinder number on all pistons, connecting rods and connecting rod caps using silver pencil or quick drying paint.
4) Remove connecting rod bearing caps.






6) Remove carbon from top of cylinder bore before removing piston from cylinder.
7) Push out piston and connecting rod assembly through the top of cylinder bore.
8) Remove connecting rod bearings from connecting rod and connecting rod bearing cap, if necessary.

Installation

Reference: Piston, Piston Ring and Connecting Rod Disassembly and Reassembly:N32A
1) Apply engine oil to pistons, rings, cylinder walls, new connecting rod bearings and crank pins.

NOTE: Do not apply oil between connecting rod and bearing or between bearing cap and bearing.

2) Install new connecting rod bearing to connecting rod bearing cap and connecting rod as follows, if removed.
a) Fit tab (1) of connecting rod bearing to groove (2) of connecting rod and bearing cap.
b) Press bearing end (3) until bearing end be comes flush with surface of connecting rod and bearing cap.






3) When installing piston and connecting rod assembly into cylinder bore, point front mark (1) on piston head to crankshaft pulley side.









4) Install piston and connecting rod assembly into cylinder bore. Use special tool (Piston ring compressor) to compress rings. Guide connecting rod into place on crankshaft. Using a hammer handle, tap piston head to install piston into bore. Hold ring compressor firmly against cylinder block until all piston rings have entered cylinder bore.
Special Tool
(A): 09916-77310






5) Install bearing cap (1) as follows.

CAUTION:
- Do not apply engine oil to new connecting rod bolt.
- Before installing connecting rod bearing cap, check the cap bolts for deformation. Refer to "Connecting rod bearing cap bolt deformation" under "Piston Pins and Connecting Rods Inspection": N32A. (Type B)

Note: Tighten connecting rod bolt gradually till they are tightened to specified torque.
















6) Install cylinder head. (Valve and Cylinder Head Removal and Installation): N32A