Service manual

Engine Block Cleaning and Inspection
SIE-ID = 784233
Tools Required
J 8087 Cylinder Bore Gage
Caution: Refer to Safety Glasses Caution in
Cautions and Notices.
1. Clean all the remaining sealing or gasket material
from the sealing surfaces.
2. Clean the engine block in cleaning solvent.
3. Flush the engine block with clean water or steam.
4. Clean the cylinder bores.
5. Clean the oil galleries and the oil passages.
6. Clean the scale and the 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.
8. Inspect the following areas:
• Cylinder bores (1) for scratches or gouging
• Valve lifter bores (2) for excessive scoring
or wear
• Coolant jackets (3) for cracks
• Threaded holes (4) for damage
• Crankshaft bearing webs (5) for cracks
• Crankshaft bearing caps (6) and the crankshaft
bearing bores (7) for damage
− The crankshaft bearing bores should be
round and uniform when measuring the
inside diameter (ID).
− The surface where the crankshaft bearings
contact the crankshaft bearing bore should
be smooth.
− If a crankshaft bearing cap is damaged and
requires replacement, replace the crankshaft
bearing cap first. Then rebore the engine
block crankshaft bearing bores and
check for the proper alignment. Finally,
check the crankshaft bearings for the proper
clearances.
• Expansion cup plug bores (8) for damage
• Engine block (9) for cracks or damage
• Engine mount bosses (10) for damage
317297
Engine Engine Mechanical - 5.0L and 5.7L 6-43
2002 - Unit Repair (May 25, 2001)