TM 5-3 805-262-344-1. ENGINE MAINTENANCE (CONT) j. OilPump (Cont).INSPECTION(1)( 2)( 3 )( 4 )(SHEET 1 OF 2)Using thickness gage, check pump gears tobody radial clearance. If clearance isgreater than 0.004 inch, replace oil pump.Check pump body and gears for scoring.Replace oil pump if scoring is seen.Check pump cover for scoring.Replace oil pump if scoring isseen.Put a piece of plastigage on both pump gears and install pump cover.Install and tighten four capscrews to 24 to 29 lb-ft.(5)(6)(7)Remove four capscrews and remove pump cover. Using plastigage scale,check clearance between pump cover and gears. Clearance shall be not morethan 0.005 inch. Replace oil pump if clearance is more than 0.005 inch.Position pump cover on body and install and tighten four capscrews to 24to 29 lb-ft. Adjust cover position while tightening capscrews to get freerotation of gears.Use spring gage to check spring compression under load. Replace spring(3) if pressure required to compress spring to 1.252 inches is not 23.8to 25.6 pounds.4-76
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