q. Check cooler support for cracks and distorted gasket mating flanges. Replace if defective.
r. Inspect cooler cover for cracks and distorted gasket mating surface. Replace if defective.
s. Inspect filter adapter for cracks and distortions. Replace if defective.
t. Inspect housing gasket mating surfaces for cracks and distortions. Replace if defective.
3-57. REPAIR OIL COOLER CORE
Repair of cooler is limited to core tube repair.
a. Repair damaged tubes by inserting a small outside diameter tube inside damaged tube.
b. Cut and flare ends.
TAKE CARE NOT TO DAMAGE HEADERS OR OTHER TUBES WHILE SOLDERING.
c. Solder tube securely to headers at both ends.
d. If more than 5 percent of tubes are defecti ve, discard cooler core.
e. Test cooler core for leaks (para 3-56p).
f. Wipe cooler core clean.
3-58. ASSEMBLE OIL COOLER ASSEMBLY
a. Lubricate new housing O-ring with engine oil.
b. Place O-ring in groove on cover end of housing. Ensure that O-ring is fully seated and not twisted.