IN-LINE ENGINES
After adjusting the exhaust valves and timing the fuel injectors, adjust the governor (Fig. 1) and the .injector
rack control levers.
Preliminary Governor Adjustments
1.
Clean the governor linkage and lubricate the ball joints and bearing surfaces with clean engine oil.
2.
Back out the buffer screw until it projects 9/16 " from the boss on the control housing.
3.
Back out the booster spring eye bolt until it is flush with the outer lock nut.
Adjust Variable Speed Spring Tension
1.
Adjust the variable speed spring eye bolt until 1/8" of the threads project from the outer lock nut (Fig. 2).
2.
Tighten both lock nuts to retain the adjustment.
NOTE: This setting of the eye bolt will produce approximately 7% droop in
engine speed from no-load to full-load.
Position Injector Rack Control Levers
The position of the injector control racks must be correctly set in relation to the governor. Their position
Fig. 2. Adjusting Governor Spring Eye Bolt
Fig. 1. Variable Speed Open Linkage
Governor Mounted on Engine
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DETROIT DIESEL
Engine Tune Up
determines the amount of fuel injected into each cylinder and ensures equal distribution of the load. Adjust the rear
