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WSG-1068 GENERAL INFORMATION
Cylinder Bore Out-of-Round
Measure the cylinder bore in two directions. The
difference is the out-of-round. Verify the out-of-round is
within the wear limit and bore the cylinder to the next
oversize limit.
Piston Inspection
Special Tool(s)
CAUTION: Do not use a caustic cleaning solution or
a wire brush to clean the pistons or possible
damage can occur.
1. Clean and inspect the ring lands, skirts, pin
bosses, and the tops of the pistons. If wear
marks or polishing is found on the piston skirt,
check for a bent or twisted connecting rod.
2. Use the Piston Ring Groove Cleaner to clean
the piston ring grooves.
Make sure the oil ring holes are clean.
Piston Diameter
Measure the piston skirt diameter.
Piston to Cylinder Bore Clearance
Subtract the piston diameter from the cylinder bore
diameter to find the piston-to-cylinder bore clearance.
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