303-00 Engine System - General Information 2014 Fiesta
General Procedures Procedure revision date: 07/24/2012

Piston Inspection

  1. 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.

  1. NOTE: Make sure the oil ring holes are clean.

    Using a Piston Ring Groove Scraper, clean the piston ring grooves.


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