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TM 9-2815-224-34&P
Flexplate and Flywheel Housing Maintenance Instructions (Cont)
Install two guide studs in rear of
(49)
crankshaft (7).
Install oil seal expander on guide studs and
(50)
against end of crankshaft (7).
CAUTION
Do not lubricate Teflon seal lip or outside of
crankshaft before seal installation. Teflon lip
seals must be installed dry to allow transfer
of Teflon to crankshaft for proper sealing.
Seals are designed for use on either
right-hand or left-hand rotating engines.
Direction is normally indicated by an arrow
on seal case. Failure to install correct
rotation seal will result in seal damage and
oil leaks.
With lip of seal (2) pointed toward engine,
(51)
slide seal over expander and onto crankshaft.
Remove seal expander and guide studs.
Install guide studs in rear of crankshaft (7).
(52)
Position seal installer on guide studs and
(53)
install handle.
Drive seal (2) in place until seal installer
(54)
seats squarely on end of crankshaft (7).
Remove installation tools.
(55)
Attach magnetic base dial indicator to end of
crankshaft (7).
(56)
Position point of dial indicator on face of seal (2).
(57)
Pry crankshaft (7) toward one end of block to ensure
end play is in one direction only.
CAUTION
When using front crankshaft screw to bar over engine, always
turn crankshaft in clockwise direction. Turning engine over in
a counterclockwise direction may loosen screw and vibration
damper. Failure to comply may result in serious engine
damage.
Soldier A rotates crankshaft (7) clockwise while
(58)
Soldier B records readings at 12,9,6, and 3 o'clock
positions. Total runout at each position should not
exceed 0.015 in. (0.38 mm).
If any dial indicator reading exceeds 0.015 in. (0.38
(59)
mm), place appropriate seal installer over seal (2)
and lightly tap at high points.
Repeat step (58). If seal (2) will not seat properly,
(60)
remove and replace seal.
5-18.3
Change 2

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