Engine Block Clean and Inspect - Upper

Engine Block Cleaning and Inspection - Upper

^ Tools Required
- J 8087 Cylinder Bore Gage

Cleaning Procedure
1. Remove any old thread sealant and gasket material or sealant.
2. Clean all the following areas with solvent:
^ Sealing surfaces
^ Cooling passages
^ 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 upper 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 cylinder walls for cracks or damage. The cylinders sleeves are not serviced separately, if the cylinders are damaged the cylinder block assembly must be replaced.
7. Inspect the upper engine block for cracks. Do not repair any cracks. If cracks are found, the cylinder block assembly must be replaced.
8. Repair any damaged threaded holes.