TM 5-1940-322-24
0157 00
FLYWHEEL, FLYWHEEL HOUSING, AND CRANKSHAFT REAR SEAL MAINTENANCE (Contd)
CRANKSHAFT REAR SEAL INSTALLATION
CAUTION
The combination crankshaft rear seal/wear sleeve replacement kit
is installed on the crankshaft as an assembly. The crankshaft rear
seal should not be removed from the crankshaft rear seal wear
sleeve. Failure to comply will result in damage to equipment.
Do not use any kind of lubricant to install crankshaft rear seal. The
seal must be installed with the lip of the seal facing the crankshaft
and the crankshaft clean and dry to ensure proper sealing. Clean
the lip of the seal of any existing lubricant with a dry cloth prior to
installation. Failure to comply may result in damage to seal and
premature engine failure.
NOTE
If the oil pan is installed, loosen the oil pan screws to allow
clearance for rear cover and gasket clearance.
1.
Install new gasket (4) and rear cover (2) on cylinder block (1) with six screws (6). Do not tighten
screws (6).
CAUTION
The seal installation tool (included in rear seal service kit) is being
used to align the rear cover properly. Do not push or force the cover
in any direction to prevent irregular seal lip position after seal
installation. Failure to comply may result in damage to equipment.
2.
Apply small coat of oil to crankshaft (5), threaded studs (8), and inside diameter of crankshaft rear
seal installation tool (10).
3.
Install two retaining rings (11) and threaded studs (8) on crankshaft (5).
4.
Position chamfered end of rear seal/wear sleeve assembly (3) on end of crankshaft (5).
5.
Position counterbore end of installation tool (10) over threaded studs (8), and align rear sleeve/wear
sleeve assembly (3) perpendicular to end of crankshaft (5).
CAUTION
Do not exceed one-half revolution of each nut to prevent rear
seal/wear sleeve binding and irregular stretch.
6.
Install two washers (9) and nuts (7) on threaded studs (8). Alternately tighten nuts (7) one-half turn
until installation tool (10) contacts end of crankshaft (5). Tighten nuts (7) to 15 lb-ft (20 Nm).
7.
Remove two nuts (7), washers (9), installation tool (10), and threaded studs (8) from crankshaft (5).
8.
Align rear cover (2) evenly with both sides of oil pan rail (12) on cylinder block (1). Tighten screws (6)
to 80 lb-in (9 Nm).
CAUTION
Ensure gasket trim does not enter the engine.
9.
Trim gasket (4) evenly with oil pan mounting surface (15).
10.
Secure rear cover (2) to oil pan (14) with four screws (13). Tighten screws (13) to 18 lb-ft (24 Nm).
0157 00-8
