Engine/Transmission (1994 - 1998) Governor lever placement

[AWray]

I understand the importance that the governor lever does not hit below the nose of the plate. I would like to know what is the impact of the lever hitting higher or lower on the plate? I am running a #10 plate and noticed that the lever hits just below the deepest part of the plate. I recently slid my plate about . 010 back from full forward and my fuel mileage improved.



I wondered if I adjusted the lever so it hit lower on the plate, would the mileage improve without a reduction in power?



Aaron

 

[vssman]

I guess the arm has to hit right around the nose so that it fuels properly for the correct RPM. One thing is that you do have to be careful when adjusting the arm with full forward plates. The adjusting screw is really just like a set screw and you can drop it into the pump. If that happens, you need to get the screw out before starting it or you can damage the governor arms that swing around inside the pump. I've seen it happen...

 

[AWray]

Assume the lever does not hit at the nose. If it starts out too high, could that cause EGTs to rise faster because of more fuel coming on eariler in the rpm curve than if the lever started out at the bottom?



Another thing I saw the last time I pulled the plate to look at the wear pattern was that all contact seemed to be in the middle of the "V" on the #10 plate. Is that because the governor arm and/or rack is not capable of moving any farther than that in a 160 pump?



Maybe Joe D will comment with the logic used when these plates were designed.