C 2500 Truck 2WD V8-6.5L DSL Turbo VIN S (1997)
Rocker Arm Cover: Testing and Inspection
1. Clean the parts in solvent, removing all sludge and varnish.
2. Clean the old sealer from the sealing surfaces.
3. Inspect for the following conditions:
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Bent or damaged sealing flanges
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Deterioration of the rubber grommets or parts on the valve rocker arm cover
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Damage to the oil pan caused by rocks
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Loose fit of the oil pan baffle
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Stripped oil pan drain plug opening threads