Cleaning

DISASSEMBLY

^ Tools Required
- J 8087 Cylinder Bore Checking Gauge, or equivalent.





1. Remove the oil passage plugs.





2. Remove the oil flow check valve.
3. Remove the crankshaft bearings, if they were not removed with the crankshaft.

CLEANING

CAUTION: Caustic cleaning solution destroys the bearing material. All bearings must be replaced-after cleaning with a caustic solution. Do not clean bearing material or aluminum parts with caustic solutions.

1. Clean the following cylinder block areas:
^ The sealing materiel from the mating surfaces.
^ Boil in the caustic solution. Flush with clean hot water or steam.
^ The oil passages.
^ All the blind holes.
^ Spray or wipe the cylinder bores and machine surfaces with engine oil.

CAUTION: Do not use a tap to clean the cylinder head bolts holes.

2. Clean the threaded holes with nylon bristle brushes.