F 150 4WD Pickup V8-5.4L VIN V Flex Fuel (2006)
Piston: Service and Repair
Piston Inspection
Piston Inspection
mSpecial Tool(s)
CAUTION: Do not use a caustic cleaning solution or a wire brush to clean the pistons or damage can occur.
1. Clean and inspect the (1) ring lands, (2) skirts, (3) pin bosses and the (4) tops of the pistons. If wear marks, scores or glazing is found on the piston
skirt, check for a bent or twisted connecting rod.
2. Use the Piston Ring Groove Scraper to clean the piston ring grooves.
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Make sure the oil ring holes are clean.
Piston - Pin to Bore Diameter
1. WARNING: Cover the end of the pin bore with a hand or shop rag when removing the retainer ring, since it has a tendency to spring
