d. Remove center bolt, lockwasher, flat washer, adapter, gasket, and sealing ring.
Bypass valve in support is a temperature sensitive device. When oil temperature
is less than 230 F (110 C), approximately half of the oil flow bypasses oil cooler
and flows directly to oil filter. When oil temperature exceeds 230 F (110 C), all oil
is directed through the cooler which reduces the oil temperature before oil is
e. Remove bypass valve and O-ring from cooler support. Discard O-ring.
f. Remove pipe plugs from cooler support.
g. Remove capscrews and lockwashers securing cooler support to housing. Discard gasket.
h. Remove support and gasket from housing. Discard gasket.
i. Remove capscrews and lockwashers securing cover to housing.
j. Remove cover and gasket. Discard gasket.
k. Remove and discard O-ring retainers from both ends of housing.
TAKE CARE WHEN REMOVING O-RING TO PREVENT SCRATCHING OR
GROOVING OF HOUSING. DAMAGE TO HOUSING O-RING MATING SURFACE
CAN RESULT IN SERIOUS OIL AND COOLING SYSTEM PROBLEMS.
l. Remove and discard O-rings from both ends of housing.
To prevent drying and hardening of foreign substances, clean as soon as possible
m. Tilt cooler housing and gently tap end of housing against wooden block until cooler core slips out.