Assembly
PISTON1. Install new snap ring on one side of piston pin hole.
2. Heat piston to 60° to 70°C (140° to 158°F) and assemble piston, piston pin, connecting rod and new snap ring.
- Align the direction of piston and connecting rod.
- Numbers stamped on connecting rod and cap correspond to each cylinder.
- After assembly, make sure connecting rod swings smoothly.
3. Set piston rings as shown.
CRANKSHAFT
1. Set main bearings in their proper positions on cylinder block and main bearing cap.
- Confirm that correct main bearings are used.
Main Bearing Cap Bolts Tightening Sequence:
2. Install crankshaft and main bearing caps and tighten bolts to the specified torque.
- Prior to tightening bearing cap bolts, place bearing cap in its proper position by shifting crankshaft in the axial direction.
- Tighten bearing cap bolts gradually in two or three stages.
Start with center bearing and move outward sequentially.
- After securing bearing cap bolts, make sure crankshaft turns smoothly by hand.
- Lubricate threads and seat surfaces of the bolts with new engine oil.
3. Measure crankshaft end play.
Crankshaft end play:
Standard: 0.050- 0.170 mm (0.0020 - 0.0067 inch)
Limit: 0.30 mm (0.0118 inch)
If beyond the limit, replace bearing with a new one.
4. Install connecting rod bearings in connecting rods and connecting rod caps.
- Confirm that correct bearings are used.
- Install bearings so that oil hole in connecting rod aligns with oil hole of bearing.
5. Install pistons with connecting rods.
a. Install them into corresponding cylinders with Tool.
- Be careful not to scratch cylinder wall by connecting rod.
- Arrange so that front mark on piston head faces toward front of engine.
b. Install connecting rod bearing caps.
- Lubricate threads and seat surfaces with new engine oil.
Tighten connecting rod bearing cap nuts to the specified torque.
Connecting rod bearing nut:
1. Tighten to 14 to 16 Nm (1.4 to 1.6 kg-m, 10 to 12 ft. lbs.)
2. Turn nuts 60 to 65 degrees clockwise.
If an angle wrench is not available, tighten nuts to 38 to 44 Nm (3.9 to 4.5 kg-m, 28 to 33 ft. lbs.).
6. Measure connecting rod side clearance.
Connecting rod side clearance:
Standard: 0.20- 0.35 mm (0.0079 - 0.0138 inch)
Limit: 0.40 mm (0.0157 inch)
If beyond the limit, replace connecting rod and/or crankshaft.
7. Install rear oil seal retainer.
REPLACING PILOT BUSHING (M/T) OR PILOT CONVERTER (A/T)
1. Remove pilot bushing (M/T) or pilot converter (A/T).
2. Install pilot bushing (M/T) or pilot converter (A/T).