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#1 |
Registered User
Join Date: May 2016
Location: CA
Posts: 88
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Carb problems
Hey everyone,
I was hoping you guys could help. I've been driving this truck relatively without problems since I bought it earlier this year, but within the last couple of days, it's developed an issue. I first noticed the truck started idling rough when I was sitting at a light or stop sign. That started a day or two ago. Since then, the truck has been progressively getting worse when sitting while running, but didn't seem to have a problem when driving at speed. On my way home today, I stopped at a local gas station and filled up. I almost couldn't get the truck started when I tried to leave. It turns over, just doesn't seem to want to start. After I got home, as I backed into my garage, it died. Now I can't get it to start again. When I popped the hood after the truck died, I noticed fuel dripping by the red arrow in the pic. I also noticed white smoke from the hole at the blue arrow in the pic. Anybody know what's going on and, most importantly, how to fix this problem?
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1969 Custom C10 |
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#2 |
Senior Member
![]() Join Date: Feb 2002
Location: Tucson, AZ USA
Posts: 7,285
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Re: Carb problems
Is it an Edelbrock? You might have dirt jamming the float/needle seat action. Could need a rebuild.
Hard to say w/o seeing it in person.
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Every 25 years I like to rebuild that 292, whether it needs it or not. |
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#3 |
Who Changed This?
![]() Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,440
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Re: Carb problems
I'd vote for leaking well plugs, as a heavy float wouldn't give a fuel leak at the secondary throttle plates, but you never know. Has it been getting poor mileage and/or hard starting recently, before this happened? It's a Quadrajet, so Cliff Ruggles would be your man. Or, you can ask Ken at Everyday Performance or Carmantex, both of whom (well, all 3) post at V8Buick.com. Those guys are the QJet experts. I rebuild my own, but am not that expert. When I had a problem with mine, I talk to Cliff. But that was before I talked to the other two guys.
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~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
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#4 |
Post Whore
![]() Join Date: Feb 2016
Location: Portland Oregon
Posts: 11,158
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Re: Carb problems
What make and model of carb is it? I can tell its not a Q-Jet but beyond that I'm just guessing. Just shooting from the hip my first guess would be your float level has gone wrong and it's flooding the carb. Pull a spark plug or two and see if they are wet. The float could be sinking or you could have some kind of debris in the fuel inlet valve. If this is the case you will need to pull the carb apart to check the inlet valve and the float adjustment. If you have a brass float you can shake by your ear and listen for fuel inside the float. If it is a composite float then you have compare the weight of it to a known good one to tell if it is bad. You can reinstall it and reset the level to the proper setting but if the float is absorbing fuel it will just happen again. Maybe in three weeks or maybe a year. And if your lucky like me it will not be at a convenient time.
![]() Good luck.
__________________
Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. ![]() RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 |
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#5 | |||
Registered User
Join Date: May 2016
Location: CA
Posts: 88
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Re: Carb problems
Thanks for the reply, gents.
Quote:
Quote:
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What's the best way to check the well plugs for leaks?
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1969 Custom C10 |
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#6 |
Registered User
Join Date: Aug 2009
Location: Bowser
Posts: 13,628
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Re: Carb problems
Simple job on an eddy carb!
They don't have any to check that are a problem! Now, if you had a quadrajet it might be a problem but you wouldn't see any evidence on the outside of the carb like your eddy does. When you rebuild your carb you should also install a fuel regulator to limit the fuel pressure to 5 psi. Eddy carbs don't like more pressure than that. |
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#7 |
All about them K’s
![]() Join Date: Jun 2014
Location: Land of Entrapment
Posts: 6,392
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Re: Carb problems
I rebuilt my 1406 a couple months ago. It's pretty straight forward, my tuck got to the point where it would barely idle and as soon as you gave it any fuel it would die. It was full of rust and varnish from old gas. Make sure you've got plenty of carb cleaner on hand to get everything cleaned up. It took me about 2 hours to tear it down, clean it up and put it back together.
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Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne: 5” lift, 35’s, front dana 60 blah blah blah… http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB: 4” lift 33”s… in a million pieces http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's |
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