T R O U B L E ANALYSIS FOR DETROIT DIESEL ENGINE (CONT.).
Remove the air inlet housing and
Blower oil seal leaking.
inspect the blower end plates while
engine is running. If oil is seen on
the end plate radiating away from
the seal, overhaul the blower.
Inspect the engine coolant for lub-
Oil cooler core leaking.
taminated, replace the oil cooler
core. Then, use a good grade of
cooling system cleaner to remove
oil from the cooling system.
Replace oil control rings on the
Oil control rings worn, broken or
Replace the piston pin retainer and
Piston pin retainer loose.
Remove and replace defective parts.
Scored liners pistons or oil rings.
Replace worn and defective parts.
Excessive piston and rod misalign-
ment (worn crank shaft thrust washers)
Check the compression pressure
Cylinder head gasket leaking.
and, if only one cylinder has low
compression, remove the cylinder
head and replace the head gaskets.
Inspect the piston and liner and
Piston or liner damaged.
replace damaged parts.
Install new piston rings.
Piston rings worn or broken.
Clean, repair or replace the breather
Obstruction or damage to breather.
Replace the gasket.
Damaged blower-to-block gasket.
Cylinder block end plate gasket
if on obstruction is found.
Remove and clean oil strainer.
Low oil pressure
Remove and clean oil cooler core.