quick afc fuel cone ? Please help
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Joined: Mar 2006
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From: WY
Originally Posted by 440forPOWER
Well it has beat me. I tried everything with no success. I guess it will have to go back together for now since I need it to be running. Might have to set up an appointment at the cummins shop to see if they can fix it 
Thanks guys for the help. If anyone has anymore ideas please keep them coming. thanks again
Thanks guys for the help. If anyone has anymore ideas please keep them coming. thanks again
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Joined: May 2006
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From: Florida
Originally Posted by G1625S
Ok, I just went out and half disassembled my pump to be sure 
YES, once that plug is removed from the AFC, you can push the pin from behind. There will actually be a piece of the AFC linkage visible when you pull the plug. Push on that with a VERY CLEAN instrument and out will pop the pin. The plug exposes the internals of the pump so don't let anything get in there! The throttle linkage does have to come off and there's an index you'll have to remember so that it's on the proper spline when you re-assemble. If you're tired out for the day, leave it overnight. The throttle linkage isn't difficult, but it does take some patience. Now I've gotta go put mine back together before it rains again 
YES, once that plug is removed from the AFC, you can push the pin from behind. There will actually be a piece of the AFC linkage visible when you pull the plug. Push on that with a VERY CLEAN instrument and out will pop the pin. The plug exposes the internals of the pump so don't let anything get in there! The throttle linkage does have to come off and there's an index you'll have to remember so that it's on the proper spline when you re-assemble. If you're tired out for the day, leave it overnight. The throttle linkage isn't difficult, but it does take some patience. Now I've gotta go put mine back together before it rains again 
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From: port crane, NY
Originally Posted by jrussell
WOW!!! You are one heck of a guy to do that for him! Only on DTR would a fellow member go that far for someone else and their Cummins.
Hey, I only did what's been done time and time again for me--it's in the first gen code--pay it forward
plus, it's really only a few nuts and bolts to get to the plug, not half the pump---I was being too dramatic
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Thanks guys, I decided to pull the throttle shaft off before I read your post G1625S. I pulled the plug and really couldnt really see what was in there and I didnt want to just go poking around in there. So I just put it back together. I think I might of screwed up though, when putting the throttle brackets back on I just put them back on without looking at the markings. I didnt turn the black stud with the screw driver looking grove on the top though. What did I do? I took it for a drive and it ran fine but I know the pin is still stuck. I think I should of stuck with a gasser since I at least know what I am doing with one of those. Thanks again
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One more quick ? I swear. When I pulled the throttle brackets off the black stud coming out of the pump the stud had a star pattern on it and so did the throttle bracket. But when I pulled it apart the bracket was just sitting on top of the studs star. When I put it back together I tried to line up the star so the bracket would fit down on it but it wouldnt line up and just sits on top. Is the bracket suppose to fit down on the star of the stud. (makes sense but it wasnt that way). Thanks
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From: New Holland, PA
Yes, the throttle shaft and bracket are splined and those splines need to be engaged. Go take a look the 3200 RPM spring instructions in the sticky and you'll see what it ought to look like. You probably got the return spring retainers in wrong or something.
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From: port crane, NY
440: pull up on the stud with your fingers...when they're wore, they can slip down into the AFC housing about 1/16''...just enough so it won't catch the splines and drive you batty. You may have to pull it up a couple times while re-installing everything, cause it's easy to push back in as you struggle with springs and whatnot. You'll get the hang of it--and once you get her fine-tuned, you'll wonder how you ever live without a Cummins
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Thanks G1625S, its on now but I screwed up and didnt look at the tick marks when I pulled it off. But I have a feeling it was off before I got there. Does anyone have pics of the correct tick markings? THANKS AGIN GUYS
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From: port crane, NY
It's different from truck to truck and governor spring to governor spring. If it's one tick too low, it won't idle without adding throttle. If it's one tick too high, it'll idle very fast...like 2500. Sooo, if it idles, you got it right. Mark it with a sharpie and you'll be good to go next time its apart.
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Thanks G1625S!! I took it back apart to make sure it was together right. It runs great just without the fuel pin Oh well I guess I will drive it for a few weeks and see if it will vibrate loose. I looked in the plug hole again and all I could see is a flat piece of metal. I didnt see anything that looked like it was connected to the pin. Well I wasted a day on this today so I think I am done for now. Thanks again guys for all the help. Now I know how the throttle assembly goes together
Oh well I guess I will drive it for a few weeks and see if it will vibrate loose. I looked in the plug hole again and all I could see is a flat piece of metal. I didnt see anything that looked like it was connected to the pin. Well I wasted a day on this today so I think I am done for now. Thanks again guys for all the help. Now I know how the throttle assembly goes together
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From: port crane, NY
FWIW, that plate is what pushes on the pin. If you push on that with, say, a short screwdriver, the pin will pop out. As far as I know, the pin slides in a cylinder and is sealed by an o-ring. Once you push it out, any lube that gets on the pin (I use di-electric grease) will travel back and lube up the o-ring and get things moving again. Don't give up on it, you've got everything lined up ta make it happen now
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I didnt want to say it earlier but I did push on it a bit with a screwdriver. It didnt feel like it moved any though. I might have to rip it back apart in a couple weeks (my week off work cycle) and see if I can move it at all. Thanks
