TIMING GEARS
If
replacement of either the crankshaft gear or the cam-
shaft gear becomes necessary,
it
is recommended that
both gears be replaced. Each
of
these gears are
pressed on. The crankshaft gear requires agear separa-
tor and puller to remove and the camshaft gear requires
a press
to
remove. Both gears can be installed using a
press. These gears use a Woodruff key
to
provide cor-
rect positioning on the shaft.
Each timing gear is stamped with an
“0”
near the edge.
The gear teeth must mesh
so
that these marks exactly
coincide when the gears are installed in theengine-See
Figure
9-28.
rc\
..
VI-1042
FIGURE
9-28.
TIMING GEAR ALIGNMENT
BEARINGS
One bearing is pressed into the engine block and the
other bearing
is
pressed into the crankcase cover. The
bearing in the engine block can be pressed out after the
oil seal is removed (following section). The bearing in
the crankcase cover can be pulled out using a puller.
Clean the bearing mounting surfaces and press new
bearings back in.
OIL
SEAL
Use an oil seal remover to pry the oil seal out of the
engine block. Clean the oil seal resting surface and
lubricate surface before installing new oil seal. Press
new oil seal into the engine block until
oil
seal
is flush
with cylinder block boss (see Figure
9-29).
Lubricate the
lips
of
the oil seal with a light coating of grease. This
provides initial lubrication until engine oil reaches the
seal.
c
\
OIL
SEAL
‘3-1093
FIGURE
9-29.
OIL
SEAL
9-1
2
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