A Series Diesel Engine Lubricating System Flow 122
Incomplete combustion in the cylinders can result in
unburned fuel draining into the oil pan.
This condition can be caused by a leaking injector or
reduced compression caused by inadequate piston
ring sealing.
An increase in white exhaust smoke during the first
start of the day is a symptom that an injector is leaking.
An injector leak will also cause the engine to run rough
and have low power.
Remove and replace leaking injectors
Perform a compression check to verify piston ring
sealing
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