Engine/Transmission (1994 - 1998) No power after 3kgsk

[Lonestar]

I just installed a 3k kit in my truck this weekend, and am having problems with the power. The truck feels as if the AFC is cranked to tight and it doesnt allow rack travel until nearly 2k rpm's. I have no smoke now and the truck is an absolute dog at low rpms. I have taken all the pressure off of the AFC spring, but nothing seems to change. What to I do now? I saw in some threads where guys talked of no power in the higher rpms, but havent found much about loss of low-end power.



Thanks

Corey

 

[DBraunig]

You might try checking the governor lever adjustment. It's possible that it's hanging under the nose of the plate now. Here's a link, thanks again to PDR



Piers Diesel Research Inc. The turbo diesel performance specialists! - Lever Adj



Dave

 

[R.ebel]

You might try checking the governor lever adjustment. It's possible that it's hanging under the nose of the plate now. Here's a link, thanks again to PDR



Piers Diesel Research Inc. The turbo diesel performance specialists! - Lever Adj



Dave

X2



You can also try sliding your plate all the way forward (this will likely let the nose of the plate clear the lever), if the power comes back then definitely do the lever adjustment and reposition your plate to your liking.

 

[FDavid]

remove the foot lever out of the afc. problem solved.

 

[R.ebel]

AFC function

remove the foot lever out of the afc. problem solved.

NOT.



The AFC effects pre-boost fueling only.

 

[nascar mark]

Sounds to me like the afc foot is on top of the govenor arm and not allowing forward movement due to being jammed up. Take the afc off the pump and slack off the starwheel as far as you can go (towards the front of the housing), then reinstall full forward. Take the truck for a burn and you should have tons of fuel on the bottom. Then adjust your starwheel to preload the afc foot.

 

[Lonestar]

I'm a little confused as to what the AFC foot is. I know what the governor arm is I think, but what is the foot? I'm going to try and look into it this weekend to see if I can figure all this out. I'll certainly start with the governor lever adjustment.



Thanks

Corey

 

[JGK]

Remove the AFC. When you do, you'll find the foot sticks out the bottom down into the pump. It restricts the governor lever from following the cam plate until some boost builds. Then the boost actuates the diaphram in the AFC (via an air line) and that moves the foot forward which allows the governor arm to follow the plate profile.



-Jay