4.Oil cooler gasket leak.
-Replace oil cooler gasket and change
engine oil.
HIGH OIL CONSUMPTION
1. Leaking breather oil seal.
-Check if the oil seal of the breather is
brittle, hard or damaged. Refer to
BOTTOM END subsection.
2. Valve stem seals worn or damaged.
-Replace valve stem seals.
3. Worn piston rings(blue exhaust
smoke).
-Replace piston rings.
PROCEDURES
OIL COOLER (HD 10 ENGINE ONLY)
Oil Cooler Access
Remove the fuel tank to reash the oil
cooler. Refer to FUEL TANK AND FUEL
PUMP subsection.
Oil Cooler Removal
Refer to the PERIODIC MAINTENCE
PROCEDURES subsection to:
- Drain engine oil.
- Drain engine coolant.
Remove oil cooler retaining screws.
1 .Retaining screws
2. Oil cooler
Place rags or towels under oil cooler to
catch remaining oil and coolant.
Remove oi1 cooler and discard gasket.
1. Oil cooler
2. Gasket
Inspecting Oil Cooler
Check oil cooler for cracks or other
damage.
Replace if necessary.