!
ASSETNBTY
TORQUES
AND SPECIAT
TOOTS
TORQUE
Assembly torques as
given
here require the
use
of a
torque wrench. These assembly torques will assure
proper tightness without
danger
of
stripping the
threads.
If
a torque lvrench is not
available, you will
have to
estimate the degree of tightness necessary
for
the
stud,
nut
or
screw
being installed
and tighten accordingly.
Be
careful
not
to strip the threads.
Check all studs,
nuts
and
screws
often
with
the
engine cold. Tighten as
needed to
prevent
them
frorn working loose.
Special
Place
Bolts
do
not
require
lockwashers or
gaskets.
Never
attempt
to use
a lockwasher with these
bolts, it will defeat their
purpose. Check all studs,
nuts
and screws often. Tighten as needed.
R€ C
ESS
UNDER
HEAD
TOROUE
SPECIFICATIONS IN LB-FT
SPECIAL
TOOLS
These tools
are available from
Onan
to aid
repair work.
Crankshaft
Gear PullingRing .... .....
Main
Crankshaft
Bearing
Driver
Front and
Rear
.
Camshaft
Bearing
Driver
Ftont..
Rear
Valve Seat
Driver
.
Valve Seat Staker
Intake.
. .
Exhaust
service and
. 420A248
.
420867
.
420A66
.
420A307
. 42043 08
.
420A3
09
.
4 20A310
.
4 208311
.
4
2 08181
.
420A314
.
420A315
Valve Seat Cutter
.
Oil
Seal
Guide
and Driver.
. . .
Camshaft
Bearing
Remover
. .
Crankshaft
Bearing Remover .
.
.
C onnect ing
Rod
Bolt
FlywheelMountingsctew ..........
F ur-l
Pump [lounting
Screws
Oil
Pump
Ccarcase
Cover
Ii(.ar Beaong
PIate
..
Oil
Base
l\4odnl
Ing Screws.
CylinderHeadBolt....
Spark Plugs.
V alve Cover
N
ut .
Manifold
Screws
-
lotake
and
Exhaust
. .
Magneto
Stator
Screws
. .
Carbureror
Moun
t ing Stud
Nuts
Armature Through
Stud
Nur
,
Generator Through Stud
Nut..
.. .....
Blower
H ousrn
g
Screws
Generator Adapter
-
To Cylindet Block
. . .
Starter
Bracket
-
To
Oil
Base
>
'/e-4
Min.
Max.
27 29
35
40
56
79
8
10
25 27
18 23
17 19
15
20
48
16 23
8
10
812
35 40
74 16
10 15
15 18
43 48
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