Clean and Inspect

CLEANING
1. Clean the sealing material from the mating surfaces.
2. Boil the cylinder block in caustic solution.
3. Flush the cylinder block with clean water or steam.
4. Clean the cylinder bores.
5. Clean the oil galleries and the passages.
6. Clean the scale deposits from the coolant passages.
7. After cleaning the engine block, spray or wipe the cylinder bores and the machined surfaces with clean engine oil.





INSPECTION
1. Inspect the valve lifter bores for deep scratches and varnish deposits.
2. Check the block for cracks.
3. Inspect the cylinder walls for scoring.
4. Inspect the coolant jackets.
5. Inspect the crankshaft bearing webs.
6. Inspect the engine mount bosses.
7. Inspect the crankshaft bearing bores and the crankshaft bearing caps.
^ All crankshaft bearing bores must be round and uniform in inside diameter (ID) at all the bearing supports.
^ The area where the crankshaft bearings contact the crankshaft bearing bore must be smooth.
^ Note if a crankshaft bearing cap is damaged and requires replacement refer to Crankshaft and Bearings Clean and Inspect.
8. Check cylinder head gasket surface for flatness using a straight edge and a feeler gauge. The surface must be flat within 0.10 mm (0.004 inch).