OIL FILTER HEAD AND OIL COOLER MAINTENANCE - CONTINUED
CLEANING - CONTINUED
Install pressure test plate (22), gasket (15), and two screws (14) on second oil passage opening in oil cooler (7).
Both oil passage openings must be sealed before cleaning oil cooler water core.
Use water pressure, attached to outlet side of housing, to clean oil cooler water core.
Inspect oil filter head for cracks or other damage. If damaged, replace oil filter head.
Inspect oil thermostat and bypass valve for cracks or other damage. If damaged, replace.
Inspect oil cooler for cracks or other damage. If damaged, replace.
Oil cooler is not a repairable component. If oil cooler is defective, it must be replaced.
To determine oil cooler serviceability, perform pressure test as follows:
Ensure both oil passages are sealed with pressure test plates and install air pressure line to one pressure test plate.
Place oil cooler in tank of water heated to 180F (82C).
Apply air pressure not to exceed 60 psi (414 kPa) and observe oil cooler. If leaks are detected, oil cooler is defec-
tive and must be replaced.