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LP Engine G430 (3.0L)
Base Engine Service Procedure
Piston and Connecting Rod
Clean and Inspect
1. Clean the piston ring grooves with a groove cleaner.
CAUTION: Wear safety glasses in order to avoid eye
damage.
2. Clean the connecting rod in cleaning solvent.
3. Clean the varnish from the piston skirts and the pins
with cleaning solvent.
4. Dry the components with compressed air.
5. Do not use a wire brush in order to clean any part
of the piston.
6. Clean the piston oil ring holes and the slots.
7. Inspect the connecting rod for twisting, nicks and cracks.
Replace any damaged connecting rods.
8. Inspect the pistons for the following conditions:
• Cracked ring lands, skirts or pin bosses.
• Nicks or spurs in the grooves that may cause
binding.
• Warped or worn ring lands.
• Scuffed or damaged skirts.
• Eroded areas at the top of the piston.
• Worn piston bores and piston pins.
9. Replace pistons that are damaged or show signs of
excessive wear.
VE066-3L
VE065-3L
