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Re-rebuild?

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Cliff Ruggles:
"I spent quite a bit of time on the power piston, and you're right, the hanger arms were not even."

Last time I checked the books I've worked on 12,900 q-jets since 2003 and can only remember a dozen or so Q-jets that came in here where the arms on the power piston were EXACTLY even!

The later carburetors used fine pitch metric idle mixture screws and most will have very tiny holes under them, so it's about 2 turns to 1 compared to the pre-1979 units with the 10-32 screws.  5-6 turns out is a good starting point unless the holes under them are opened up some.

I'd advise against opening them up much as you can very quickly go too large and have to start cutting coils off the mixture screw springs to get them to seat.......Cliff

CJ7Pilot:
My Frankenstein... TBI accessories on a Q-Jet engine! 

I'm hoping for new 1982 Chevy pickup performance in my old 1982 Jeep Scrambler.

Once I swap it in, I can rebuild my existing Q-Jet as a spare... or maybe set it up as a "performance" carb, and use this one as a "smog" carb.  ;)

CJ7Pilot:
I got everything installed, and it runs like a champ!

Initially, I couldn't get the idle settled down, but then I remembered that Cliff mentioned the later model Q-jets have finer threads on the adjustment screws.

I ended up with about 4 turns out, and I couldn't be happier!

Thanks, Cliff! 

Cliff Ruggles:
Good news, thanks for the update.....Cliff

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