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07-08-2016, 09:32 AM
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#1 |
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Registered User
Join Date: Dec 2007
Location: West Fargo, ND
Posts: 31
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carb problems
I went to start my truck the other day and gas was pouring out of the vent above the fuel inlet. Its circled in yellow in a picture I found on the internet.
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07-08-2016, 10:17 AM
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#2 |
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Senior Member
 
Join Date: Mar 2005
Location: Jurupa Valley, Ca
Posts: 1,210
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Re: carb problems
my first thought is that something got in the float valve and it is stuck open causing gas to overflow the bowl.
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Terry 1970 Custom Camper/C20 , GM Crate 350/7004R, Dana 60, factory AC |
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07-08-2016, 10:32 AM
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#3 |
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Registered User
Join Date: Oct 2011
Location: Victoria, B.C
Posts: 3,794
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Re: carb problems
Yikes....looks like you are in for some carb correction.
What are you using for a PCV connection? I see a bunch of plugged ports as well as what appears to be an open vacuum connection on the lower left front of the carb. How does this vehicle run? That carb is from a later 70's or early 80's vehicle so it isn't going to be the easiest carb to tune and set-up. I think a couple of the members have a vacuum routing diagram for that series of carb. Coley
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....for some men, there is experience, skill and effort....for the others...there is visa and UPS LOL 1966 Chevy 1/2 ton (Florida- Red/white) 1972 Chevy 1/2 ton (California- Blue/white) 2005 Chevy Silverado HD2500/Duramax 2000 Dodge Ram 1500 |
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07-08-2016, 12:13 PM
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#4 |
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Registered User
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
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Re: carb problems
Could be a stuck needle and seat. Rap on it with the phenolic end of a screwdriver, not hard enough to ding or break anything, but in an attempt to free it.
If that doesn't work the top of the carb will need to come off. It's pretty common, more so if you've recently had any lines off it.
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1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible |
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07-08-2016, 12:29 PM
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#5 |
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Registered User
Join Date: Jun 2012
Location: springfield mo
Posts: 3,075
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Re: carb problems
 screwdriver tapping was worked for me in the past
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United States Marine Corps 2000-2011 Iraq and Afghanistan veteran Just living life now and enjoying it and my wife, daughter and son 
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07-08-2016, 02:53 PM
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#6 |
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Registered User
Join Date: Dec 2007
Location: West Fargo, ND
Posts: 31
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Re: carb problems
the picture is not off my carb. My truck is 200miles away in storage and I was trying to run the engine a bit over the 4th. What part do I tap on?
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