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Old 09-17-2012, 08:21 PM
fasteddy_1947 fasteddy_1947 is offline
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Rebuild or junk Quadrajet?

Got nifty cheapo Q-jet from seller on e-bay. Was happy as that pig in slop when it came. like everything else I ever got, first thing had to do was take it apart. Being older than dirt, my second thought was to find something out about this animal, before start messing with it. Am right at home and happy with Rochester 2 bbl and have been running one on my '51 coupe (327) for 20 years (time to do something else). So, everything I read says get the Cliff Ruggles book first. So I did. Wow, this thing aint nothin like I thought it going to be. Not even close to the 2 bbl. But got it, so gotta do something with it. Wasn't worried bout specific configuration, as it eventually (maybe) going on 350 in 39 coupe. So on initial and subsequent inspections here's what apparent problems with this are. 1) It has been backfiring through the primaries. Heavy soot/carbon build-up in air passages (primary side). 2) Missing stuff: choke pull-off, choke to secondary lockout linkage (and I don't know what other linkages). 3) The throttle valve shaft was turned 180 deg w/linkage to secondary throttles turned 180 the other way. Primary throttles wouldn't close, but didn't figure out why until got it down and saw that if take linkage/levers off and turn throttle shaft 180 deg. the throttles work as they should. Once got it down and started cleaning, found that accelerator pump check valve well in fuel bowl was leaded over (?). Under the lead is the ball. the cap screw is gone. Have basically identified the original application for the carb. and am pretty confident that will be able to get stuff for it, someplace. But don't know if it is going to be worth the effort. Am wondering if anyone has any good tips, or if I should just toss it or make ashtray or something out of it. Have second (junk/parts) Q-jet coming this week. Will go from there (maybe). Right off, am I missing something obvious, and what else do I need to be looking for on this?
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