Service Manual

Assembly Torques
The torque values given in Table 1 have been deter- Tighten all studs, nuts, and capscrews as required to
mined for specific applications. Standard torque values keep them from working loose. Refer to the
PARTS
must not be used where those listed in Table 1 apply. MANUAL for the location of washers and capscrews.
The engine assembly torques given here will assure
proper tightness without danger
of stripping threads. All
threads must be clean and lubricated with new engine
oil before torquing.
TABLE 1.
DESCRIPTION
Gearcase Cover ...............
Oil Base ......................
Oil Base Cover (inner bolts). ....
Oil Base Cover (outer bolts). ....
Oil Cooler ....................
Oil Pump ......................
Hood Support Screws.. ........
Starter Mounting Bolts .........
Connecting Rod Bolts.. ........
Flywheel Capscrews ............
Valve Cover. ....... . ..........
TORQUE
SPECIFICATION
Ft.-Lb. Nm
10-12 14-16
27-29 36-39
19-21 25-28
9-11 12-15
20-24
27-33
7-9 10-12
7-9
10-12
19-21 25-28
12-14
16-19
50-55
67-75
3-4 4-5
DESCRIPTION
Cylinder Head Bolts (cold)
Asbestos Gasket
............
Graphoil Gasket.. ...........
Mounting Screws.. ..........
Mounting Screws.. ..........
Intake Manifold
Exhaust Manifold
Other 1
/4" Cylinder Block
Other 5/16" Cylinder Block
Nuts and Bolts
..............
Nuts and Bolts ...............
TORQUE
SPECIFICATION
Ft.-Lb. Nm
16-1 8
22-24
14-1 6
19-22
6-10
8-14
9-11
12-15
7-9
10-12
8-10
11-14
Special Tools
The following is a partial list of the special tools available
from Onan. Use Onan tools whenever a repair or
overhaul is required. Refer to the
TOOL CATALOG for a
complete listing of tools available.
Valve Seat Driver
Valve Guide Driver
Oil Seal Guide and Driver
Combination Bearing Remover (Main and Cam)
Combination Bearing Driver (Main and Cam)
Flywheel Puller