| MD, MDV, And 6 Series Diesel Tractor Tune Up Info |
| Engine Model And Type |
D-248 |
D-264* |
| Compression Pressure (at cranking speed)(psi) |
442-488 |
547 |
|
|
|
| High Idle (no load) Engine RPM / PTO RPM |
1600 + or - 30 / 596 |
1600 + or - 30 / 596 |
|
|
|
| Low Idle (no load) Engine RPM / PTO RPM |
500 / 185 |
500 / 185 |
|
|
|
| Rated Load Speed Engine RPM / PTO RPM |
1450 + or + 10 / 537 |
1450 + or + 10 / 537 |
|
|
|
| Horsepower (at load speed) PTO Shaft |
36.0 |
48.0 |
|
|
|
| Approximate Fuel Rate (at load speed) gals/hour |
2.61-2.77 |
3.51-3.86 |
|
|
|
| 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 |