Quadrojet problems

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Jul 31, 2007 | 03:06 PM

treedude

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Joined: Jul 2007

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Quadrojet problems

First -- my apologies....I have 4 fords but couldn't pass up a deal on a '76 Chevy 1ton with 350 4bbl and thought someone on this forum might be able to help me.

I just rebuilt my Rochester Quadrojet -- I beleive I did a decent job on the rebuild, but upon reinstalling in the truck I have problems. Gas is pumping in but the truck will not start. I messed up the linkage on the "choke side" of the carb and I think the lower flaps are not opening and the gas is just pouring out the top of the carb.

Does anyone have a diagram showing what the lower linkage should like like? If you look at the side of the carb, this is also not the linkage attached with the upper screw but the lower area that is held by a screw and spring combo.....I've gotten all out of whack.

Any help is appreciated.

Tree dude

Jul 31, 2007 | 04:46 PM

highboy1975

Cargo Master

Joined: Sep 2003

Posts: 2,110

Likes: 32

From: southwest pa

your way off base on this one. i think your in the wrong forum, wrong area, all wrong in general. check one of the powertrain forums.

Aug 1, 2007 | 11:07 AM

loudfords

FTE Chapter Leader

Joined: Sep 2000

Posts: 3,863

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From: Beachville, Ontario

Now you know why the Chebbie was so cheap!

Aug 1, 2007 | 05:30 PM

monckywrench

Cargo Master

Joined: Apr 2001

Posts: 2,220

Likes: 26

I have both Fords and Chevys, but the stock carbs get tossed promptly for Holleys, which I get cheap/free from folks who don't want to rebuild or tune 'em.
The Q-jets go to my demented friend who likes them, and the Motorcrafts help fill whatever is going to the crusher.

Fuel spewing out the top is typically a stuck or misadjusted float, or stuck needle valve.

Zoom in for a better look than the rebuild kit pics offer:

http://dyeager535.topcities.com/CCCqjetdiagram.html

Q-jet site
http://www.florida4x4.com/tech/quadrajet/index.php

Pics:

http://www.4wheelnoffroad.com/qjet.html

http://www.florida4x4.com/tech/quadr...rbs/Kqjet.html

EXCELLENT page for those older Chevy trucks:

http://www.chuckschevytruckpages.com/

Aug 1, 2007 | 08:02 PM

oldgoat49

Elder User

Joined: Nov 2003

Posts: 963

Likes: 1

From: wichita kansas

Funny but I am the opposite. I've had very good luck with Qjets. Have a friend that his girlfriends vette has 3 holley's in the trunk and he just returned a new holley that was defective and got another that looks as bad as the one he returned. Holley might be better for performance, but for everyday use my Qjets have been almost flawless.