130 Tractor Tune Up Info
Engine Model And Type
C-123 Gas
C-123 Gas Fire Crater Pistons*
C-123 Dist.
Compression Pressure (at cranking speed)(psi)
160
142
95
High Idle (no load) Engine RPM / PTO RPM
1575 / 609
1575 / 609
1575 / 609
Low Idle (no load) Engine RPM / PTO RPM
425 / 164
425 / 164
425 / 164
Rated Load Speed Engine RPM / PTO RPM
1400 / 541
1400 / 541
1400 / 541
Horsepower (at load speed) PTO Shaft
21.8
22.5
17.5
Approximate Fuel Rate (at load speed) gals/hour
1.85-1.95
2.10-2.20
1.74-1.83
Firing Order
1-3-4-2
1-3-4-2
1-3-4-2
Valve Lash (hot)(inch)
Intake
.014
.014
.014
Exhaust
.014
.014
.014
Spark Plug Gap (inch)
.023
.023
.023
Distributor
Symbol
X
X AB
X
Breaker Point Opening (inch)
.020
.020
.020
Part Number
366928R91
372712R91
366928R91
Governor Spring Package
366942R91
372785R91
366942R91
Ignition Timing (spark advance BTDC unless otherwise specified) (degrees)
At 400 RPM (+ or - 2 Degrees
1
1
1
At high Idle Speed
25
22
25
Carburetor Liquid level (inches)
I.H.
-
-
-
Zenith
1/2
1/2
1/2
Carter
-
-
-
Marvel-Schebler
9/32
9/32
9/32
Torque Wrench Settings (foot pounds)
Cylinder Head
80
80
80
Manifold
20
20
20