Good Q-jet Rebuild Kit [Archive] - Chevelle Tech

: Good Q-jet Rebuild Kit


soccerguy045
Dec 26th, 03, 4:47 PM
Against the advice of my dad and grandpa, I want to try to rebuild a quadra-jet I have lying around. I gotta learn sometime right, so why not start on a carb I'm getting for free. Are there any really good rebuild kits out there for Q-jets? We bought a rebuild kit for my 2-bbl, and it had a more or less 'universal' diagram, and had things like unlabelled ball bearings, or labelled things but not being model specific, etc. Also, any recommended books for tuning and rebuilding 2-bbl Rochester and the Quadrajet alike? Thanks.

hilljack
Dec 26th, 03, 5:17 PM
The diagrams are all pretty crappy, but there is a difference in kit quality. The float instruction don't seem to be right either. I think Napa and Southern would have the better kit. It's not to hard to do, take some notes or pictures before disassembly.

Some of the Q-jet experts will tell ya what kit to get.

Have fun, ain't free stuff great graemlins/thumbsup.gif

Schurkey
Dec 26th, 03, 5:50 PM
My favorite kit is the Standard "Jiffy Kit". Get used to unlabeled parts, and "extra" stuff you don't need. It's a fact of Carb life.

I just went through a pile of Q-J cores. I was amazed at how many variations GM made. I was also amazed at how many have warped tops and even warped main bodies. Too much torque on the front bolts, coupled to a squishy base gasket. You can see the bend in the carb with naked eyes.

Doug Roe & Bill Fisher's book "Rochester Carburetors" by HP Books is both a classic and a fine source of info on lots of different Rochester carbs.

Glenn1018
Dec 26th, 03, 7:22 PM
The accelerator pump lever will likely have a roll pin holding it to the air horn. Be careful tapping it towards the center of the carb for pump rod removal - you don't need to tap it all the way through, just enough to allow the lever to come out so you can swivel the rod around. This has to be done before the air horn comes off. Upon reassembly just pry the roll pin back with a flat blade screw driver.

If the air horn doesn't want to lift off, find out why before using too much force. There are a bunch of tubes which extend into the float bowl assembly.

There are a lot of parts - take your time. It's a good idea to place the little parts on a large piece of cardboard, then draw a circle around them with the corresponding part numbers according to the diagram you're using.

There's also a torque sequence for the screws that go in from the top - some kits show it, some don't.