Pre 84 Trucks 1st gen pickups

Stock carb issue

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Old Sep 4, 2011 | 08:24 PM
  #1  
yota81's Avatar
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From: raleigh,nc
Stock carb issue

Ok, I've got an issue here, I've got a completely stock carb, but when I presss the throttle and let off, fuel leaks out of the black boot that is in the lower left part of the picture ( it has an arm going to it that presses it in and out with the throttle ). The fuel leaks out and runs down the lower curved part of the arm, 6-8 drops each time. Fuel doesn't leak when idling. Also, everything else seems to be fine with the carb, so I am hesitant to take it off and mess with a good thing. I can't tell if fuel is coming out from the boot or somewhere else, it's kinda hard to see when it is still hooked up and vacuum lines everywhere. The pic is looking at the carb from the front.



Also, does anyone know what size and thread pitch bolt should go here and hold part of the air intake down?



Thanks
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Old Sep 5, 2011 | 10:03 AM
  #2  
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From: Nw Arkansas
Your accelerator pump is leaking ,try snugging the screws and if that doesn't help ,the pump will need replaced. It is easy to replace without removing the carb, just watch for the spring when you remove it.
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Old Sep 6, 2011 | 06:17 AM
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83's Avatar
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From: Montana
I don't know the specifics on that bolt/threads, but the easiest way to go is finding the bolt at a junkyard. Or biting the bullet ordering from the dealership...when I'm feeling lazy and rich, that's where I get my bolts...
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Old Sep 6, 2011 | 04:16 PM
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From: raleigh,nc
thanks for the tip on the accelerator pump.

and i'm not rich or lazy, so we'll see how that goes
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Old Sep 7, 2011 | 06:10 AM
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From: Montana
Check the junkyards, or even Yotatech classifieds. If nothing else, go into the dealership and see what that bolt costs. Sometimes they aren't as ridiculous as you'd think. I'm lucky enough to have a really good parts department at my dealership. They are helpful and competent, which is apparently rare...

I'm not rich or lazy either, but sometimes I feel that way...and getting a screw/nut/bolt from the dealership when I need to go there anyways is the easy way out.
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