TM 5-3895-382-24
Illustration 94
Installation of the crankshaft front seal and wear sleeve.
(1) Crankshaft pulley
(2) Front oil seal
(3) Hub of crankshaft pulley
(4) Wear sleeve
(5) Face of front oil seal housing
(6) Depth of front oil seal
The front oil seal (2) is normally installed to a depth of
7.00 ± 0.25 mm (0.276 ± 0.010 inch)(A) from the face of the
front oil seal housing (5). If wear occurs on the hub of the
crankshaft pulley (3), leakage of oil can occur. If there is a
leak, the front oil seal (2) can be installed to a depth of 9.3 mm
(0.37 inch) from the face of the front oil seal housing.
If a wear sleeve (4) is installed, the front oil seal is installed to a
depth of 9.30 mm (0.366 inch) from the face of the front oil seal
housing. When a wear sleeve is installed, a new front oil seal
must be installed. When a wear sleeve is purchased, detailed
procedures and a special tool are provided with the wear
sleeve for the installation. When the wear sleeve is installed,
the flange does not require removal.
Perform the following procedure in order to install a front oil
seal:
1.
Remove the following components: fan, drive belts and
crankshaft pulley.
2.
Use the 1U-7600 Slide Hammer Puller to remove the
front oil seal. Refer to the Disassembly and Assembly
module.
3.
Clean the oil seal housing. Inspect the new front oil seal
and the oil seal housing for damage. If a scratch across
the lip of the oil seal can be observed, do not use the
seal.
4.
Place clean engine oil on the outer circumference of the
oil seal. Place the oil seal into the oil seal housing so
that face of the oil seal is even with the face of the front
oil seal housing. Ensure that the lip of the oil seal with
the spring is toward the timing case cover. Ensure that
the oil seal is square to the bore of the oil seal housing.
Illustration 95
9U-6210 Front Seal Installer.
(6) The side of the adapter is stamped '9.3 mm".
(7) Hole in threaded bar
(8) Threaded bar
(9) Nut
(10) Pressure plate
(11) Fastener plate
(12) Sleeve
(13) Adapter
5.
Use the 9U-6210 Front Seal Installer to install the new
front oil seal and the wear sleeve. Place the fastener
plate (11) on the front of the crankshaft. Place the
adapter (13) on the face of the oil seal housing. Ensure
that the correct side of the adapter is used for the
desired depth of the oil seal. The "9.3 mm" side of the
adapter (6) is shown in Illustration 95.
Assemble the pressure plate (10) and the sleeve (12) on
the threaded bar (8). Place this assembly in position on
the adapter (13). Tighten the threaded bar (8) on the
stud of the fastener plate (11).
6-94
