TM 5-3810-300-24&P-3
Crankshaft Oil Seals 1.3.2
Fig. 5. Use of Rear Oil Seal Spacer or Sleeve on Grooved Crankshaft
in the front cover with the lip of the seal pointed
5. Install the crankshaft front cover as outlined in
toward the inner face of the cover.
Section 1.3.5.
6. Install the vibration damper inner cone or oil seal
NOTE:
The vibration damper inner
spacer after the front cover and seal assembly is
cone or oil seal spacer must be removed
in place.
before installing the oil seal.
Install Crankshaft Rear Oil Seal
3. Drive the seal into the front cover with installer J
9783. The installer prevents damage to the seal
1. Support the inner face of the flywheel housing on
by exerting force only on the outer edge of the
a flat surface.
seal casing.
2. Install the rear oil seal spacer, if used. Install the
4. Remove any excess sealant from the cover and
spacer against the shoulder in the flywheel
seal.
housing oil seal bore.
3. If the new seal is not pre-coated, apply a
nonhardening sealant to the periphery of the
metal casing. Then position the seal with the lip
pointed toward the inner face (or shoulder in the
counterbore) of the housing.
4. Coat the lip of the oil seal lightly with engine oil
(single-lip seal) or vegetable shortening (double-
lip seal). Do not scratch or nick the sealing edge
of the oil seal.
5. Drive the seal into the housing with installer J
9727 and handle J 3154-1 (Fig. 6) until it is
seated against the seal spacer (if used) or on the
shoulder in the housing bore. The installer
prevents damage to the seal by exerting force
only on the outer edge of the seal casing.
If it is necessary to install the oil seal with the flywheel
housing on the engine, place oil seal expander J 22425
Fig. 6. Installing Oil Seal in Flywheel Housing
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