Cleaning Procedure

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.