dang afc pin

[randyswelding]

does any one know what the od of the afc pin is or where i can find out from.after several atempts to stop my top from leaking by changin the lil green oring out and puttin it back together it willstart leakin after bout 2 weeks,what gives am i missin somethin is there another oring that i missed or is this pin too warn.the pin is in great shape no wear marks just a shinny machined surface.has this happened to any one else?hey bgilbert and tim still leakin eaven after scheids and after i got home and fixed it thanks guys

[CumminsPride]

Randy, why don't you swap the pump tops from your spare motor and put the afc arm back in it. That one never leaked! Good luck on the seal though.

[randyswelding]

Ya that's what I'm goin to do most likely tonight after work.wade I already got the pump and head off and that motor still has a nice cross hatch. But wha( I wqould like0 ta0know is why its doin this

[KTA]

Do you have a ground or aftermarket control pin?

[randyswelding]

Both a grounded one that isn't ground too bad still has a lot of meat on it, and a ddp pin also

[KTA]

It doesn't take too much grinding on the deep side of a stock pin to be too much and to cause a leak by allowing the pin to travel too far. I have seen this with several aftermarket pins as well. Not all pumps are made the same and a couple thousandths here and there can add up to trouble with one and none with another. I would recommend turning your cone to the shallow unground side for a bit and see if your leak quits. It is the cheapest fix you can get if it works.

[randyswelding]

The grounded pin is barley grounded not like the last one which was almost cut off the pin its self.I put the other top on last night with no afc and no leak what I'm goin to try and do is take every thing apart and reseal the top and turn the factory pin to stock and see how it does.why does it leak with only a lill grinding,when I check how much pin should be stickin out of the allen head

[bgilbert]

Must be operator/installer error !

[CumminsPride]

How did the truck run without the AFC? LOL

[randyswelding]

Dang good not as smokey as I thought and no hesatation on boost like before

[CumminsPride]

It's really a night and day difference.

[randyswelding]

No the night and day is when you reinstal the shut off plunger and it won't shut off the truck but cut off over half the fuel when 1 clip comes off.so I redid the clips and now all good