| 300 Tractor Tune Up Info |
| Engine Model And Type |
C-169 Gas |
C-169 Dist. |
C-169 LPG |
C-175 Gas Fire Crater Pistons * |
C-175 Dist. Flat Top Pistons * |
| Compression Pressure (at cranking speed)(psi) |
145 |
82 |
207 |
145 |
95 |
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| High Idle (no load) Engine RPM / PTO RPM |
1925 / 595 |
1925 / 595 |
1925 / 595 |
1925 / 595 |
1925 / 595 |
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| Low Idle (no load) Engine RPM / PTO RPM |
425 / 139 |
425 / 139 |
425 / 139 |
425 / 139 |
425 / 139 |
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| Rated Load Speed Engine RPM / PTO RPM |
1750 / 541 |
1750 / 541 |
1750 / 541 |
1750 / 541 |
1750 / 541 |
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| Horsepower (at load speed) PTO Shaft |
37.9 |
28.4 |
37.9 |
40.3 |
30.8 |
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| Approximate Fuel Rate (at load speed) gals/hour |
3.25-3.45 |
2.91-3.08 |
4.35-4.60 |
3.40-3.70 |
3.06-3.33 |
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| Firing Order |
1-3-4-2 |
1-3-4-2 |
1-3-4-2 |
1-3-4-2 |
1-3-4-2 |
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| Valve Lash (hot)(inch) |
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| Intake |
.017 |
.017 |
.017 |
.017 |
.017 |
| Exhaust |
.017 |
.017 |
.017 |
.017 |
.017 |
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| Spark Plug Gap (inch) |
.023 |
.023 |
.023 |
.023 |
.023 |
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| Distributor |
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| Symbol |
O |
J |
T |
O |
J |
| Breaker Point Opening (inch) |
.020 |
.020 |
.020 |
.020 |
.020 |
.020 |
| Part Number |
362722R91 |
357935R91 |
364696R91 |
362722R91 |
357935R91 |
| Governor Spring Package |
362725R91 |
358108R91 |
373955R91 |
362725R91 |
358108R91 |
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| Ignition Timing (spark advance BTDC unless otherwise specified) (degrees) |
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| At 400 RPM (+ or - 2 Degrees |
0 |
0 |
0 |
0 |
0 |
| At high Idle Speed |
22 |
30 |
16 |
22 |
30 |
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| Carburetor Liquid level (inches) |
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| I.H. |
9/16 |
9/16 |
- |
9/16 |
9/16 |
| Zenith |
- |
- |
- |
- |
- |
| Carter |
- |
- |
- |
- |
- |
- |
| Marvel-Schebler |
- |
- |
- |
- |
- |
- |
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| Torque Wrench Settings (foot pounds) |
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| Cylinder Head |
70 |
70 |
70 |
70 |
70 |
70 |
| Manifold |
50 |
50 |
50 |
50 |
50 |
50 |