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2. Assemble connecting rod to the crankpin.

3. Tighten the connecting rod bolts to the specified torque.

Tightening torque: First tightening 10 Nm

Second tightening 21 Nm

4. Remove the connecting rod, measure the compressed width of the plastic space gauge. If out of

specification, replace the connecting rod.

Oil clearance: 0.020～0.052mm

NOTE:

Don’t rotate the connecting rod before completing measurement.

Main journal oil clearance

1. Clean main bearing, main journal and fitting surface of cylinder body and crankcase.

2. Install main bearing and crankshaft to cylinder body.

3. Put one plastic space gauge on the main journal, paralleling with crankshaft.

NOTE:

Don’t put plastic space gauge on the oil hole of main journal.

4. Install main bearing onto crankcase and install crankcase onto cylinder body.

5. Following the numbering sequence on the crankcase, tighten the bolts at specified torques.

Tightening torques:

First tightening 15 Nm

Second tightening

30 Nm

First tightening 6 Nm

Second tightening

12 Nm

6. Remove crankcase and measure the compressed width of each plastic gauge. If out of specification,

replace the main bearing.

Oil clearance: 0.012～0.045mm

NOTE:

Please don’t rotate the crankshaft before the measurement is completed.

Cylinder body and crankcase

1. Inspect cylinder body and crankcase for crack, damage or wear. Replace if necessary.

2. Inspect cooling water passage for dirt or clog. Clean if necessary.

FULL INSTALLATION

Piston connecting rod installation

Parsun F15BW Service Manual

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