Super MD, MDV, And Super 6 Series Diesel Tractor Tune Up Info
Engine Model And Type
D-264
D-281*
Compression Pressure (at cranking speed)(psi)
556-614*
590*
High Idle (no load) Engine RPM / PTO RPM
1580 / 582
1580 / 582
Low Idle (no load) Engine RPM / PTO RPM
500 / 184
500 / 184
Rated Load Speed Engine RPM / PTO RPM
1450 / 534
1450 / 534
Horsepower (at load speed) PTO Shaft
43.5
50.5
Approximate Fuel Rate (at load speed) gals/hour
3.19-3.38
3.67-4.02
Firing Order
1-3-4-2
1-3-4-2
Valve Lash (hot)(inch)
Intake
.017
.017
Exhaust
.017
.017
Spark Plug Gap (inch)
.025
.025
Distributor
Symbol
H
H
Breaker Point Opening (inch)
.020
.020
Part Number
356657R91
356657R91
Governor Spring Package
358107R91
358107R91
Ignition Timing (spark advance BTDC unless otherwise specified) (degrees)
At 400 RPM (+ or - 2 Degrees
0
0
At high Idle Speed
8
8
Carburetor Liquid level (inches)
I.H.
9/16
9/16
Zenith
-
-
Carter
-
-
Marvel-Schebler
-
-
Diesel Timing
Static (Crankshaft Degrees)
TDC
TDC
Torque Control Adjustment
Refer to Pump Type Info
Refer to Pump Type Info
Additional Information
Refer to Construction Equipment Service Manual ISS-1012-Y
Refer to Construction Equipment Service Manual ISS-1012-Y
Torque Wrench Settings (foot pounds)
Cylinder Head
100
100
Manifold
50
50
* Increased Bore