Service Manual
Section
4.
Assembly
Torques
The torque values listed in Table
4-1
have been Tighten all studs,
nuts
and capscrews as specified
determined for specific applications. The engine to keep them from working loose. Refer to the Parts
assembly torques given here
will
provide proper Manual for the location of washers and capscrews.
tightness without danger of stripping threads.
All
threads must be clean,
rust
free
and lightly
lubricated.
TABLE
4-1.
ASSEMBLY TORQUES
DESCRIPTION
Conn
Rod
Bolts
Oil
Base
Bolts
Oil Pump Cover Screws
Oil Pump Screen Cover
Oil Drain Plugs
Oil
Base
Pressure
Line Plugs
LOPCO or Pipe Plug
Adapter Filter Head
Oil Filter
Oil Indicator Cap
Cy1 Head
Bolts
NO. 1-5 Bolts
No.
6
Flange
Bolt
Valve Lash Adj
Nut
Valve Cover Bolts
Spark Plug
Air Deflector Bolts
Pulse Pump to Deflector
Pulse Pump Spud
Int Elbow to Cy1
Hd
Screws
Air Cleaner Pan to
Air
Deflector
Carb. to Int Elbow
Knob-Inner Air CLnr
Knob-Outer Air Clnr
Cy1 Air Hsg
Bolt
Exhaust Elbow Bolts
Muffler Bolts
Starter Bolts
Alternator Stator Screws
Stator Wire Clamp
Screw
Flywheel Nut
Ignition Coil
Bolt
Blower
Hsg
Bolts
Voltage
Reg
Screws
Chaff Screen Bolt
Stationary Guard Bolt
Recoil Starter Cup Screw
Recoil Starter Bolts
Control Plate
Stud
Control Plate Pivot Bolt
Nut-Control Plate Stud
Governor
Arm
Nut
Throttle Cable Clamp Screw
Nuts
M8x44 24-27
M8x
50
16-22
M6x 14
M6x 14
3/8”
NPT
114" NPT 7-11
1/8” NPT
3/416"
24-30
1.5-2
7-11
7-11
7-11
7-11
M10 42-50
M8x50 16-22
M7 7-11
M6 x 25 7-11
M8x
11-20
10-24
M8x 16
M6x 10 7-11
#10 2.3-2.8
18-20 OIL BASE TORQUE
12-16-
58
5-8 Torque
'A"
twice.
Toque bolts in
clockwise
direction
starting
with "A"
SEQUENCE
118" NPT
M8x
50
114"
x
.50"
M6x
85
M6x 10
M8
M8x
45
M8X95
M8x
40
M6x
25
M6x 14
M18
M6 x 27
M6x20
114"
x
.50”
M6x 10
M6x
20
M8x 16
M6x 12
M8
M8
M6
M6
1032"
7-11
11-16
6.7-8.1
10-15
Not
Specified
7-11
11-20
16-22
11-20
16-22
10-15
10-15
122-138
10-15
7-11
6.7-8.1
7-11
1.4-2
24-30
7-11
11-16
11-16
7-11
8.1-10.9
1.4-2
5-8
58
58
18-22
3/41 Turn after gskt
1.1-1.5(13-18LB*IN) contacts
base
Toque
in
sequence shown.
after
others
are
done.
Tighten
every
other bolt
until
all
bolts
are tightened.
Retorque
the
first bolt
twice.
31-37 Two
bolts
outside
valve
cover
12-16
(#2
&
#4)
To
be
retorqued
5-8
58
7-18
8-15
58
1.7-2.1 (20-25 LB-IN
C-1138
5-8
8-12
5-6 (60-72 L
7-11
Not
Specified
58
8-15
8-15
12-16
12-16
7-11
90-102
7-11
7-11
5-8
5-6 (60-72
LB_IN
58
1-1.5 (12-18 LB*IN)
18-22
5-8
8-12
5-8
68
a12
1-1.5 (12-18 LB-IN
Tighten
twice
(1-2-1)
contacts element
1-1/2-2 turns after
cover
CYLINDER HEAD
TORQUE SEQUENCE
4-1