AFC lever travel

mech2161

mech2161

I have a secret.
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Jan 15, 2007
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I asked this a while back in another thread. I know the lever rides the AFC foot and the fuel plate. With the engine running, does it raise or pull back as rpm's increase? If you look at a stock plate, the lever would never get past the first notch.

swap_0012.JPG
 
as you apply throttle it tries to go forwards

as rpm increases it rises upwards

as far as it getting past the first notch, guess that would depend how high it was when it hit

the plates are upside down in the picture
 
Stock, the gov arm probably barely ever touches the plate. It'll be on the AFC foot most of the time.
 
DTanklage said:
as you apply throttle it tries to go forwards

as rpm increases it rises upwards
This is what I was looking for. Does it rise any at idle?
as far as it getting past the first notch, guess that would depend how high it was when it hit

the plates are upside down in the picture
Click to expand...

That's just the way they were laying when I took the picture. I have modded the foot length, travel and spring. The 100 plate is full forward but the lever will still contact it. I'm wondering when (rpm) it starts to rise.
 
The whole surface of the plate is not used. Im not 100% sure but I think in a stock application with the stock plate, the only parts that are used are what I have between the red lines. I may be wrong so someone please correct me if so.
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So with a 100 plate should the lever contact at the tip or just above on the slope?
 
With a manual transmission truck, I wouldn't even worry about the plate. Put a xero plate in it, and adjust the AFC. If you have boost you can dump fuel.
Alot of the reason for the plate was to restrict power and pass emissions. Hence the goofy pattern the stock ones have. They reduce power to save the tranny's at low end, and then also pull back some fuel in certain ranges to make the EPA folks happy.
 
That's kinda what I was thinking. I want to try to keep the bottom end some what streetable.
 
Kevin if you have your AFC adjusted, you can set it up so you get just a little fuel if you have no boost. Heck put a regulator on the AFC. Shut it down in the cab when you want to street it, open it up when you want the AFC to move.
 
i can not get to any sort of lever adjustment and my lever is too low

do not see either of the jam nuts pictured in that one post

think it may be a pic of a different pump

mine is a '97 215 hp pump and i need the lever higher (it is almost an inch below the mating surface at some points of its travel)

any help greatly appreciated

don
 
Should be the one on the lower left in the picture.
I decided to go with the zero plate and use the AFC to control low rpm fueling.

leveradj3.jpg
 
and your pump looks just like that?

no wheres to bolt a fuel plate and only 2 hold down screws???

mine dont look nothin like that

or is that a bottom view??????

or what
 
That pic is the back of the pump. You have to take the cover off in order to see this. The bottom nut is where you adjust the governor lever.
 
omg

am i retarded or what?

didnt see the inspection cover back there

thought the whole rear part came off together

besides....i dont know if i am supposed to go in there...its safty wired

roflmao (and mostly at myself)

a huge thanks

don
 
DTanklage said:
besides....i dont know if i am supposed to go in there...its safty wired
Click to expand...

Just make sure no one is looking when you cut the safety wire. Do it in the middle of the night, people will think you are just trying to steal the truck instead . . .
 
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