TM  10-3930-638-24&P 4-2.   ENGINE   MAINTENANCE   (cont) g. Camshaft and Bearings (cont). STEP LOCATION ITEM ACTION REMARKS REMOVAL 1 Cylinder  head, a. Eight push rods (14) Remove top b. Eight valve tappets (3) Lift and retain Insert 3/8 inch diameter by 12 inches long wood dowels (eight) in push rod opening and push into valve tappets hole. Raise valve tappets with dowels and retain in position with clothespins 4-53