Rampage L4-135 2.2L (1983)
Oil Pump: Service and Repair
Some 1982 engines may exhibit a knock sound similar to a diesel engine. This noise occurs after a previously warmed up engine has sat for 4 hours or
longer and been restarted. To alleviate this condition, a new oil filter adapter has been released which has an integral check valve. The new part No. is
4273323, and is used on all later models. When installing this adapter, inspect the check valve for proper operation by inserting a screwdriver in the oil
filter end of the adapter and lightly pushing on the check valve. Under very light pressure, the valve should freely move 1/4 inch. If the valve sticks or
binds, replace the oil filter adapter. A sticking valve may restrict oil pressure, possibly resulting in engine damage.
Fig. 29 Oil pump assembly
OIL PUMP ASSEMBLY
1. With oil pan removed, remove the screw securing oil pump to the cylinder block.
2. Reverse procedure to install. Torque oil pump attaching screw to 200 inch lbs.
Fig. 30 Checking oil pump end play
