Main & Connecting Rod Bearings
WARNING: This page is about a different car, the 1983 Volkswagen Vanagon, 1983 Volkswagen Rabbit, 1983 Volkswagen Quantum, 1983 Volkswagen Pickup, and 1983 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.
- Push crankshaft toward one end and measure end play at No. 3 (thrust) bearing. Main bearing caps are numbered "1" through "5" with "1" at drive belt end and "5" at flywheel end. Measure connecting rod end play (side play). Check all bearing clearances with Plastigage, tightening bearings to 26 ft. lbs. (35 N.m).
- Measure crankshaft journals to determine size and any out-of-round. Maximum allowable out of round is .0012" (.030 mm). Install main inserts with bearing half having oil groove into block. Lubricate bearings and install caps in original positions.
CRANKSHAFT JOURNAL DIAMETERS
| Size | Main Bearing In. (mm) (1) | Rod Bearing In. (mm) (1) | ||
|---|---|---|---|---|
| Standard | 2.125 (53.97) | 1.810 (45.97) | ||
| 1st US | 2.115 (53.72) | 1.800 (45.72) | ||
| 2nd US | 2.105 (53.47) | 1.790 (45.47) | ||
| 3rd US | 2.095 (53.22) | 1.780 (45.22) | ||
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