Piston Inspection

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

Fig 1: Inspecting Ring Lands, Pin Bosses, Skirts And Tops Of Pistons

Courtesy of FORD MOTOR CO.

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.

NOTE: Make sure the oil ring holes are clean.

Fig 2: Cleaning Piston Ring Grooves Using Piston Ring Groove Scraper

Courtesy of FORD MOTOR CO.