I Need Some Advice

I have had the jets plugged by dirt in a Quadrajet before. Took carb apart in Holiday Inn Travel Park at 3am. Was not on the GMC, but was the same
carb. Also had a tiny piece of fuel line hose block the jet in a one-barrel 6 cylinder Ford about 10 miles from where I installed a new fuel filter.
Engine idled fine but would make enough power to move down the road. When the Quad plugged the jets, it would not even idle and had to push it into
the travel park.
--
Terry Kelpien

ASE Master Technician

73 Glacier 260

Smithfield, Va.
 
It causes it...brian 77ele

________________________________
From: Gmclist on behalf of A.
Sent: November 1, 2016 8:15 PM
To: gmclist
Subject: Re: [GMCnet] I Need Some Advice

> engine flodded with gas?...Brian 77ele
Pouring gas down the barrels doesn't cure flooding.
--
73 23' Sequoia 4 Sale
73 23' CanyonLands Parts Unit 4 Sale
Upper Alabama
"Highest price does not guarantee highest quality."

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Huyt means he is getting ignition ....maybe not the right ignition...brian 77ele

________________________________
From: Gmclist on behalf of A.
Sent: November 1, 2016 8:24 PM
To: gmclist
Subject: Re: [GMCnet] I Need Some Advice

> Remember, he has had the distributor out of the engine! Just Saying.
> Jim Hupy
I don't know everything automotive. So maybe you can help me understand how it runs for a few seconds when he pours gas down the barrels if it is an
ignition problem?
--
73 23' Sequoia 4 Sale
73 23' CanyonLands Parts Unit 4 Sale
Upper Alabama
"Highest price does not guarantee highest quality."

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OK, regarding adjustments...again to clarify, has it ever run properly with the rebuilt carb since you put it back in? If so it probably isn't the
adjustments, its probably something gummed up.

You might get away with putting some fresh gas along with a god carb cleaner i[I like sea foam or B12]n the bowl and letting it sit. If the carbi is
off, soak it in a bucket of fresh gas and carb cleaner overnight. Keep it outside, covered and away from heart or spark. Beyond that, it needs to come
apart

To start, the carb only needs fuel in the bowl at the ripper level, the choke on, and the idle circuit functioning

Rotate the choke housing in the direction that closes the choke to almost closed initially. The choke increases the vac signal to the idle circuit to
enriched it. There is a high idle screw for the choke linkage that bumps up the idle on chock

The throttle blades have to be slightly open to idle, unless your qjet happens to have 2 holes int the primaries

Did you determine if the idle mixture screws are exposed at the base? If you want riot to be and it isn't, if you remove the carb, you can remove the
plugs by drilling the plug and inserting a Self tapping [not self drilling] screw to pull them, or cutting shallow Vs under each and knocking out with
a punch. You will find the screws have oddball heads, usually oblong. They do make a flexible tool for this but you will be better off long term to
epoxy some extensions to these where they are easier to see, with a hex head screw

A good starting point is 2 turns out from lightly seated. Caution: the threads are fairly robust, but the tips deform if you over tighten them

James is right about checking the ignition. I would start by making sure the cent fugal advance wts and springs are not stuck, and then check initial
timing with a dial back to zero timing light. anything in the 6-10 degree area should start
--
76 Glenbrook
 
Michael, you are sitting in a tough spot. If you recieved that carb from Jim bounds, and it did nothing to fix the problem, I would really start
looking elsewhere. When I installed mine years back, it was set, and never needed an adjustment. You said you fed the fuel via a remote gas
tank, and a electric pump, so I really think you have to start looking at the ignition.

I would maybe try to hotwire the distributor, and get a jumper ground on that. I have a hard time believing that if you are for sure getting good
gas into the float bowl of the distributor, you could not keep it running one way or another, just not well.

at least get a voltage meter hooked up to the distributor feed, and keep an eye on that. IF it fires off, and you see that voltage drop, and it
dies. that might give you an idea where to look from there.

--
Jon Roche
75 palm beach
St. Cloud, MN
http://lqqkatjon.blogspot.com/