TM  10-3930-638-24&P 4-2.   ENGINE   MAINTENANCE   (cont) i. Oil Pump (cont). 12 STEP LOCATION ITEM ACTION REMARKS REASSEMBLY  (cont) d. Cotter pin (9) Install Compress spring (11) and retainer (10) (cont) until retainer is below cotter pin hole. Use new cotter pin and bend it to re- tain in place e. Gasket (7) Position Use new gasket f. Cover assembly (6) Position NOTE While tightening screw (4) and cap screw (2) position cover assem- bly to provide free rotation of oil pump gears. g. Screw (4) and Install Tighten to 6-8 pounds foot torque lock washer (5) h. Three cap screws (2) Install Tighten to 6-8 pounds foot torque and lock washers (3) i. O-ring (8) Install  and Use  new  O-ring.  Use  clean  engine  oil lubricate (refer to current lubrication order) 13 Oil  pump Oil pump screen (1) Install On oil pump body screen (1) INSTALLATION 14 Cylinder block a. Shim(s) (5) Position On top of front main bearing cap NOTE Install a shim pack with 0.015 inch minimum thickness to ensure that pump gear and crankshaft gear are not jammed together. CAUTION In following step be careful you don’t cut O-ring on sharp edge of cylinder block when you install oil pump b. Oil pump assembly (4) Position On top of shim(s) (5) and front main bearing cap c. Two cap screws (1) Install Tighten to 90-100 pounds foot torque 15 Oil  pump Two cap screws (2) and Install Tighten to 90-100 pounds foot torque screen washers  (3) 4-73