Piston Inspection

SPECIAL TOOLS

Scraper, Piston Ring Groove
303-D033 (D81L-6002-D) or equivalent

NOTE: Do not use a caustic cleaning solution or a wire brush to clean the pistons or damage can occur.

Clean and inspect the (1) ring lands, (2) pin bosses, (3) skirts 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.
Using a Piston Ring Groove Scraper, clean the piston ring grooves.
- Make sure the oil ring holes are clean.