Posted by Clint Dixon on Wednesday, October 10, 2001 at 5:57PM :
In Reply to: Winter starting tip.... posted by Jonas on Wednesday, October 10, 2001 at 12:43PM :
Nothing to do with winter starting, but here is what I do to help keep the governor operational on my civilian flatfenders:
On the ET1, ET2, ET4, E7F1, and E7S1 carburetors found on models WDX to W300M (1946 to 1958), the intergral velocity type governor has a main spring that tries to force the throttle plate open against the velocity of the incoming fuel/air mixture. When the truck is sitting idle, this spring is under constant tension in a stretched state. When I park my Power-Wagon for extended periods of time I pull the hand throttle all of the way out. This allows the governor spring to compress into a relaxed state relieving all of the tension on it. Doing this (in theory) will extend the life of the spring. Once this spring weakens the governor will become out of adjustment causing reduced top end speed. When this spring breaks after an extended period of fatigue, the throttle plate will no longer open regardless of how far the accelerator pedal is pushed down. The engine will only idle. Of course, this spring usually breaks right in the middle of a long road trip!
The only drawback I see to pulling out the hand throttle each time the engine is turned off is that the throttle return spring on the accelerator pedal to carburetor linkage is being put under additional stress. This though, is easier to replace than the main governor spring. And...the big one.. Do not forget to push the hand throttle all the way in befor starting the engine!
Clint
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