Farmall 450D And W-450D Tractor Tune Up Info
Engine Model And Type
D-281
Compression Pressure (at cranking speed)(psi)
556-614*
High Idle (no load) Engine RPM / PTO RPM
1580 / 582
Low Idle (no load) Engine RPM / PTO RPM
625 / 230
Rated Load Speed Engine RPM / PTO RPM
1450 / 534
Horsepower (at load speed) PTO Shaft
47.4
Approximate Fuel Rate (at load speed) gals/hour
3.61-3.81
Firing Order
1-3-4-2
Valve Lash (hot)(inch)
Intake
.017
Exhaust
.017
Spark Plug Gap (inch)
.025
Distributor
Symbol
C
Breaker Point Opening (inch)
.020
Part Number
353892R91
Governor Spring Package
358107R91
Ignition Timing (spark advance BTDC unless otherwise specified) (degrees)
At 400 RPM (+ or - 2 Degrees
0
At high Idle Speed
8
Carburetor Liquid level (inches)
I.H.
9/16
Zenith
-
Carter
-
Marvel-Schebler
-
Diesel Timing
Static (Crankshaft Degrees)
TDC
Torque Control Adjustment
Refer to Pump Type Info
Additional Information
Refer to Construction Equipment Service Manual ISS-1012-Y
Torque Wrench Settings (foot pounds)
Cylinder Head
100
Manifold
50