44. Engine Block Clean and Inspect - Lower
Engine Block Cleaning and Inspection- LowerCleaning Procedure
1. Remove any old thread sealant and gasket material or sealant.
2. Clean all the following areas with solvent:
^ Sealing surfaces
^ Oil passages
^ Bearing journals
3. Clean all threaded and through holes with solvent.
Caution: Refer to Safety Glasses Caution in Service Precautions.
4. Dry the lower engine block with compressed air.
Visual Inspection
1. Inspect the crankshaft bearing journals for damage or spun bearings. The crankshaft bearing journals are not repairable, if the crankshaft bearing journals are damaged the cylinder block assembly must be replaced.
2. Inspect the crankshaft rear oil seal bore for damage. The crankshaft rear oil seal bore is not repairable, if the crankshaft rear oil seal bore is damaged the cylinder block assembly must be replaced.
3. Inspect all sealing and mating surfaces for damage, repair or replace the cylinder block assembly if necessary.
4. Inspect all threaded and through holes for damage or excessive debris.
5. Inspect all bolts for damage, if damaged replace with new bolts only.
6. Inspect the crankshaft oil scraper for cracks or damage, replace if cracked or damaged.
7. Inspect the oil distribution baffle plate for damage. The oil distribution baffle plate is not serviced separately, if the oil distribution baffle plate is damaged the cylinder block assembly must be replaced.
8. Inspect the lower engine block for cracks. Do not repair any cracks. If cracks are found, the cylinder block assembly must be replaced.
9. Repair any damaged threaded holes.