Author Topic: Carb Problems?  (Read 1296 times)


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Carb Problems?
« on: February 09, 2012, 09:23:23 PM »
Got this message on Steam....I don't know shit about carbs so I told home dude that I would post a thread here....

"My van is getting bad gas mileage, like 6-7mpg bad. A little under half of what I'd normally expect from it. I suspect it might be something related to the carb, since it doesn't seem to have enough choke when it's cold and sometimes misses a bit under heavy throttle (and even died today with WOT). Should I try spraying some stuff in it, rebuilding it, or am I completely wrong?"
Oh, and the engine in question is a 80s era CSB, something smaller than a 350 I think.
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Re: Carb Problems?
« Reply #1 on: February 09, 2012, 09:49:37 PM »
Depending if hes ever had it off or how many miles are on it Id just rebuild it, whens the last time for a fuel filter or tune up? If its a quadrajet found a decent link to links


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Re: Carb Problems?
« Reply #2 on: February 10, 2012, 11:08:42 AM »
Clogged jets, poor adjustment, etc so on so forth.. there's a lot of things it could be.

Thankfully they're not as complicated as they sound, so if he's at all mechanically inclined he could rebuild it in an hour or less.


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Re: Carb Problems?
« Reply #3 on: February 23, 2012, 08:35:46 AM »
Sounds like a rebuild is in order, it is probably leaking fuel and running WAY rich. Pull a sparkplug and check to confirm.

I only know about Holley carbs, can't help you with Quadrajunks.
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