Crankshaft and Bearings Removal

REMOVAL





1. Remove crankshaft from block.
2. Remove crankshaft rear oil seal from block.





3. Remove bearing inserts from block.





4. Clean oil, sludge, and carbon.
5. Inspect oil passages for obstructions.
6. Inspect all threads.
7. Inspect bearing journals and thrust surfaces for the following conditions:
- Cracks
- Chips
- Gouges
- Roughness
- Grooves
- Overheating (discoloration)
8. Inspect the corresponding bearing inserts for imbedded foreign material. If foreign material exists find the cause and repair it.

IMPORTANT: Replace the crankshaft if cracks, severe gouges or burned spots are found. Slight roughness may be removed with a fine polishing cloth soaked in clean engine oil. Burrs may be removed with a fine oil stone.

9. Measure crankshaft journals. Use a micrometer or dial indicator to measure the taper and runout. Note the result for the later selection of bearing inserts. If not within limits the crankshaft must be replaced.
Note the location of the main bearing high spots. If they are not in line, the crankshaft is bent and must be replaced.