66. Engine Oil Cooler Clean and Inspect

Oil Cooler Cleaning and Inspection





1. Clean the oil cooler in solvent.
2. Backflush the heat exchanger and oil cooler lines with solvent.

Caution: Refer to Safety Glasses Caution in Service Precautions.

3. Dry the oil cooler components with compressed air.
4. Remove all sealant from the oil cooler cover.
5. Inspect the oil cooler for the following:
^ Damage to the heat exchanger fins
^ Restrictions in the heat exchanger fins
^ Damage to the threads of the heat exchanger
^ Check the oil cooler cover surface flatness with a straight edge and a feeler gage
6. Inspect the oil cooler lines for kinks and damage.
7. Inspect the oil cooler line banjo-fittings for damage and scoring.