600 And 650 Tractor Tune Up Info
Engine Model And Type
C-350 Gas
C-350LP
Compression Pressure (at cranking speed)(psi)
130
196
High Idle (no load) Engine RPM / PTO RPM
1650 / 592
1650 / 592
Low Idle (no load) Engine RPM / PTO RPM
425 / 152
425 / 152
Rated Load Speed Engine RPM / PTO RPM
1500 / 538
1500 / 538
Horsepower (at load speed) PTO Shaft
60.6
60.6
Approximate Fuel Rate (at load speed) gals/hour
5.22-5.54
6.47-6.80
Firing Order
1-3-4-2
1-3-4-2
Valve Lash (hot)(inch)
Intake
.017
.017
Exhaust
.017
.017
Spark Plug Gap (inch)
.023
.015
Distributor
Symbol
W
T
Breaker Point Opening (inch)
.020
.020
Part Number
366069R91
373956R91
Governor Spring Package
373956R91
373955R91
Ignition Timing (spark advance BTDC unless otherwise specified) (degrees)
At 400 RPM (+ or - 2 Degrees
0
0
At high Idle Speed
32
16
Carburetor Liquid level (inches)
I.H.
9/16
-
Zenith
-
-
Carter
-
-
Marvel-Schebler
-
-
Torque Wrench Settings (foot pounds)
Cylinder Head
120
120
Manifold
40
40