Assembly Torques And Special Tools - 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 4045
Rocker Arm Nut 4-10*
Rocker Arm Stud . . . . 35-40
Thru-Rotor-Stud Nut 55-60
* - This torque is friction between the threads only and
locks the nuts in place. The rocker arm nuts are for
adjusting valve lash.
CAUTION
Tighten nuts evenly to avoid manilold
damage.
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 a l l studs, nuts and screws
often. Tighten as needed.
SPECIAL TOOLS AND EQUIPMENT
These tools are available from Onan to aid service and
repair work.
Crankshaft Gear Pulling Ring 420-0275
Diesel Compression Tester 420-0283
Diesel Nozzle Tester 420-0184
Diesel Pintle Nozzle Cleaning Tool Set
(Includes injection nozzle centering tool) . . . 420-0208
Driver, Front Camshaft Bearing 420-0252
Driver, Rear Camshaft Bearing 420-0251
Driver, Center Camshaft Bearing 420-0254
Driver, Main Bearing Front and Rear 420-0269
Driver, Valve Seat 420-0270
Oil Seal Guide and Driver Rear Front 420-0281
Ridge Reamer 420-0260
Replacement Blade for 420-0260 420-0261
Valve Seat Remover 420-0272
Replacement Blades for 420-0272 4 20-0274