Torque Specifications; Special Tools And Equipment - Onan MDJF Series Operator's Manual And Parts Catalog

ASSEMBLY TORQUES AND SPECIAL TOOLS
TORQUE SPECIFICATIONS FT.-LB.
Center Main Bolt . . . 97-102
Connecting Rod Bolt
27-29
Cover-Rocker Box
8-10
Cylinder Head Bolt ..
44-46
Exhaust Manifold Nuts.
13-15
*
Flywheel Mounting Screw
65-70
Flywheel Hub Nut • • • • • • • • • .
17-21
Fuel Pump Mounting Screws.
15-20
Gear Case Cover . • • . • •
18-20
Glow Plug. • • . • . . . • • . . • .
10-15
Injection Nozzle Mounting Screws
20-21
Injection Pump Mounting Screws 15-16
Intake Manifold ., . . . . . • . . . . .
13-15
Oil Base Mounting Screws. . . . . . . • 45-50
Oil Filter . . . . . . . . . Hand Tight + 1/4 to 1/2 Turn
Oil Pump Mounting Screws
15-20
Rear Bearing Plate
40-45
Rocker Arm Nut . .
4-10*
Rocker Arm Stud. .
35-40
Thru-Rotor-Stud Nut 55-00
* -
This torque is friction between the threads only and
locks the nuts in place. The rocker arm nuts are for
adjusting valve lash.
*~Ti,ghten
nuts evenly to avoid manifold
'. dama,ge.
Assembly torques assure proper tightness without danger of
stripping threads. If a torque wrench is not available,
estimate the degree of tightness. Use reasonable force and
a wrench of normal length.
Special Place Bolts do not require lockwashers or gaskets.
Never attempt to use a lockwasher with these bolts, it
will defect their purpose. Check all studs, nuts and screws
often. Tighten as needed.
SPECIAL TOOLS AND EQUIPMENT
These tools are available from Onan to aid service and
repair war k.
Crankshaft Gear Pulling Ring
Diesel Compression Tester •. . .
Diesel Nozzle Tester . . . . • . .
Diesel Pintle Nozzle Cleaning Tool Set
(Includes injection nozzle centering tool)
Driver, Front Camshaft Bearing ..
Driver, Rear Camshaft Bearing . . .
Driver, Center Camshaft Bearing ..
Driver, Main Bearing Front and Rear
Driver, Valve Seat . . . . . . . . .
Oil Seal 'Guide and Driver Rear Front
Ridge Reamer . . . . . . . . . .
Replacement Blade for 420-0260
Valve Seat Remover • . . . . . .
Replacement Blades for 420-0272
420-0275
420-0283
420-0184
420-0208
420-0252
420-0251
420'()254
420-0269
420-0270
420.{)28I
420-0260
420-0261
420-0272
420-0274
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