Dodge D250 1990 Service Manual page 284

Rear wheel drive ram truck, diesel supplement
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Base Engine Components
DODGE Engine Components
Out-of-Chassis Diagnostic Procedures
Page 9H-3
However, It Is also critical that the cylinder walls be
thoroughly cleaned after the de-glazing. Grit left In the
cylinder wall will cause rapid wear out of the new rings
leading to the previously discussed power problems.
Overheating of the engine from a loss of coolant will cause the
cylinder to overheat resulting in seizure of the piston.
Improper maintenance of the lubrication system is the primary
cause of reduced main bearing life.
Reduced oil pressure may be an Indication that bearings are
wearing. If wear is allowed to continue, bearing clearances
become excessive and the crankshaft will hammer on the
bearings, causing a knocking sound.

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D350 1990W250 1990W350 1990

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