DISASSEMBLY
1.

Remove the timing belt train, front case, cylinder head assembly and oil pan. For details, refer to the respective chapters.

2.

Remove the rear plate and the rear oil seal.

3.

Remove the connecting rod caps.

note

Mark the main bearing caps to be able to reassemble in the original position and direction.

4.

Remove the main bearing caps and remove the crankshaft. Keep the bearings in order according to the cap number.

INSPECTION
CRANKSHAFT
1.

Check the crankshaft journals and pins for damage, uneven wear and cracks. Also check the oil holes for restrictions. Repair or replace any defectiveparts.

2.

Inspect the crankshaft journal and pin for out-of-round and taper.

Standard value

Crankshaft journal O.D :

3.5 : 63.982 - 64.00 mm (2.519 - 2.5197 in.)

3.0 : 59.987 - 59.996 mm (2.3617 - 2.3620 in.)

Crankshaft pin O.D :

3.5 : 54.982 - 55.00 mm (2.165 - 2.1653 in.)

3.0 : 49.976 - 49.996 mm (1.967 - 1.968 in.)

MAIN BEARINGS AND CONNECTING ROD BEARINGS
MEASURING OIL CLEARANCE

Standard value

Oil clearance

Crankshaft main bearing :

0.018 - 0.036 mm (0.0007 - 0.0014 in.)

Connecting rod bearing :

0.022 - 0.048 mm (0.0009 - 0.002 in.)

PlASTIGAUGE METHOD
1.

Remove oil, grease and any other dirt from the bearings and journals.

2.

Cut the plastigauge the same length as the width of the bearing and place it in parallel with the journal, avoiding the oil holes.

3.

Install the crankshaft, bearings and caps and tighten them to the specified torques. During this operation, do not turn the crankshaft. Remove the caps. Measure the width of the plastigauge at the widest part by using the scaleprinted on the gauge package.

If the clearance exceeds the service limit, the bearing should be replaced or an undersize bearing should be used. When installing a new crankshaft,be sure to use standard size bearings.

If the standard clearance can not be obtained even after replacing the bearing, the journal and pin should be ground to the undersize and a bearingof the corresponding size should be installed.

OIL SEAL
DRIVE PLATE (A/T)
REASSEMBLY
Main Bearing
1.

Install a grooved main bearing (upper bearing) on the cylinder block side.

2.

Install a grooveless main bearing (lower bearing) on the main bearing cap side.

3.

Install the crankshaft. Apply engine oil to journal and pin.

4.

Install the bearing caps with the arrow mark directed toward the front of the engine. Cap number must be correct.

5.

Tighten the cap bolts to the specified torque.

Tightening torque

Main bearing cap bolts :

90 - 100 Nm (900 - 1000 kg.cm, 65 - 72 lb.ft)

6.

Cap bolts should be tightened evenly in stages 4 to 5 increments before they are tightened to the specified torque.

7.

Make certain that crankshaft turns freely and check the end play of the crankshaft.

Crankshaft end play

Standard : 0.070 - 0.250mm (0.0028 - 0.0098 in.)

Limit : 0.35 mm (0.014 in.)

8.

Using special tool(09231-33000), install the rear oil seal in oil seal case.

9.

Apply sealant to the area shown in the illustration. Install the oil seal case in the cylinder block.

Tightening torque

Oil seal case bolt :

10 - 12 Nm (100 - 120 kg.cm, 7 - 9 lb.ft)

10.

Tighten the rear plate to the specified torque.

Tightening torque

Rear plate : 10 - 12 Nm (100 - 120 kg.cm, 7 - 9 lb.ft)

11.

Tighten the drive plate and the adapter plate (A/T).

Tightening torque

Drive plate and adapter plate bolt :

73 - 77 Nm (730 - 770 kg.cm, 53 - 56 lb.ft)

Яндекс.Метрика