Important:
• Do not use a wire brush or glass bead blasting.
• Use a cleaning solution that will dissolve the carbon deposits.
• Remove the carbon in the ring grooves with a ring groove cleaner.
1. Clean the piston, by removing all of the varnish and the carbon deposits.
2. Inspect the piston for the following conditions:
• Cracking or w e a r of the ring lands.
• Burrs or nicks of the ring g rooves.
• Cracking of the skirts or pin bosses.
• Cracking of the piston dome (Use Magnaflux Spot-check dye method or the equivalent).
• Scuffing or deep scratches of the piston skirt.
• Scuffing of the piston bore.
• Wear of the piston pin retaining ring or the grooves.
3. Inspect the connecting rod for the following conditions:
• Cracks or nicks on the connecting rod (Use Magnaflux Spot-check dye method or the equivalent).
• Scuffing or scratching of the piston pin bushing.
• Nicks or scoring of the bearing bore.
• Bent or twisted rods.
4. The connecting rod is not service able for the following repairs:
• Straightening.
• Bushing replacement.
• Connecting rod bearing bore enlargement.
