TM-9-2320-280-34 HMMWV Direct Support & General Support Maintenance Manual Download
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TM 9-2320-280-34 3 - 15. REAR MAIN OIL SEAL REPLACEMENT (Cont’d) b. Installation NOTE • Each seal is marked "outside" on an edge. Install “outside" marking toward rear of engine for correct installation. • If oil seal stops or binds during installation, tap into position with wood block and hammer. • Seal shavings during installation are permitted. Large shavings, nicks, or gouges during installation are not permitted. 1. Lubricate seal (10) with lubricating oil. By hand, insert seal (10) into upper seal groove of engine block (1) until seal (10) stops. NOTE Seal must be pressed tightly against crankshaft, by assistant, to avoid rear side of seal being cut by block surface. 2. Press seal (10) against crankshaft (11) as shown, and lightly tap seal (10) with wood block and hammer into engine block (1) until one inch of seal (10) remains out of engine block (1). 3. Lubricate seal (2) with lubricating oil. Install seal (2) into opposite side of seal groove in engine block until seal halves (2) and (10) make contact. CAUTION Keep sealant off of bearing oil seal and bearing cap oil relief slot and non-shaded areas of bearing cap flange, or engine damage will result. 4. Apply lubricating oil to bearing (5). 5. Apply light coat of adhesive to main bearing cap seal groove (4). NOTE Immediately install rear main bearing cap after application of sealer. 6. Apply thin film of anerobic gasket sealer to rear main bearing cap mating surfaces (3) as shown by shaded areas. Keep sealer off bearing (5) and oil relief slot (7). CAUTION Do not use capscrews to pull main bearing cap into block cavity. Tap rear main bearing cap into cylinder block cavity using brass hammer or rubber mallet. Failure to do this may cause damage to equipment. 7. Install rear main bearing cap (6) with two long capscrews (8) and two short capscrews (9) and tighten to 40 lb-ft (54 N.m). 8. Evenly tighten two long capscrews (8) to 110 lb-ft (149 N.m). 9. Evenly tighten two short capscrews (9) to 100 lb-ft (136 N.m). 3-32