POWERHEAD
ASSEMBLY - 9.9/15
When the crankcase
is
seated, install and firmly
seat the crankcase taper pin.
Using a soft face
mallet, lightly tap bottom of the
crankshaft to seat the
lower main bearing.
Apply Gasket Sealing Compound to metal case of
a new upper main bearing
seal. Install seal using
Seal Installer,
PIN
326271, with lip of seal facing
crankcase
assembly.
COB1152A
Apply Gasket Sealing Compound
to
metal cases
of two new crankcase head
seals. Place the small
diameter seal
on
Crankcase Head Seal Installer,
PIN
433391, with lip of the seal facing large diam-
eter of the
tool. Install the
seal
until tool contacts
the head. Use the opposite side of the
tool to
install the large diameter seal. Lip of this seal
must face away from large diameter of the tool.
When installed, both seal lips will face toward
202
each other. Apply approximately 3 cc of Moly
Lube
between the seals.
1-----
1. Seal (small diameter)
COA6229
__
----1
1. Seal (large diameter) COA6230
Oil
and
place a new O-ring
on
the crankcase
head.
Install the crankcase head. Apply Gasket
Sealing Compound
to threads of crankcase head
screws.
Install the screws finger tight.
Tighten the six main bearing screws
in
stages to a
final torque of 144 to 168
in.
Ibs.
{16
to 19 N·m}.
Begin with the center screws and work outward
in
a spiral pattern. Tighten the smaller crankcase
screws
to
a torque of
60
to
84
in.
Ibs.
{7
to 9 N·m}.
Tighten the crankcase head screws
to
60 to 84
in
.
Ibs.
(7
to
9 N·m).
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