ARMY TM 9-6115-604-12
NAVY NAVFAC P-8-633-12
Inspection of Front and Rear Crank-Shaft and Accessory Drive Seals.
(1) Carefully examine the area around the front crankshaft seals and accessory drive seals for evidence of
leakage (see Figure 3-3).
(2) Remove the VS marks access cover and examine flywheel face for evidence of leakage.
(3) Slight seepage around a seal area, as evidenced by a slight accumulation of oil dampened spots, should be
considered normal. Refer any evidence of free flowing oil to the next higher level of maintenance.
Figure 3-21. Rocker Housing Covers
Inspect Oil Pan Assembly. Visually check the oil pan (Figure 3-3) for cracks or leaks. Check around the
threaded plugs and sensors for oil leaks. Refer any leaks or damage to the next higher level of maintenance.
Maintenance of Handhole Covers and Gaskets. Inspect the covers (Figure 3-3) for physical damage and
evidence of leakage.
Inspect Expansion Plugs. Inspect expansion plugs (Figure 3-3) located on all cylinder heads, and engine block.