Long time lurker here. I've gone over and gone over all the Weber install and tuning threads,but I have a little more unique problem than what i could find so here we go...
1986 :CJ7, Stock 258, with GM HEI dizzy, and just installed USED (mint) Weber 32/36. Redline adapter. Timing has been tried at 9* and 12*, vacuum lines have been tried in several configurations as well as completely plugged. Either gives a stron, steady 16* vacuum reading at the manifold.
1) It will start up and idle, but only when the choke is fully engaged. if it even opens a little it starts to die. Full open even when warm is impossible.
2) Mixture screw basically ha NO effect. I can thread it all the way in and all the way out with no change in engine speed. have removed it and observed no damage to the needle.
Not sure what to do. I'm nearly positive I have no vacuum leaks. Have tried several methods to find one. I'm no carb expert, and since the Weber sat unused for an extended period of time, I'm thinking maybe it needs a re build. But gotta say...it seems to work too well other than the problem stated, it revs up fine, etc. Any help here would be great.. Thanks in advance
I have a master mechanic for an uncle and i sent him an email, he is thinking jets as well Swatson. Lemme do some work and Ill get some more jet info on here.
Matt i was thinking so too, but the vacuum seems to read to good for that, plus I sprayed carb cleaner and starting fluid all over...nothing. you guys have taught me alot about my CJ...you just dont know it. All your advise is a God send on these forums..I hope you all realize that
Anyone have any good links to a exploded view or something? I'm embarrassed to admit Ive never even taken the jets out of a carb haha. And I have built GM engines from scratch. Just something Ive only now needed to know.
I'm not sure where you're looking (hopefully not "solex" carbs direct ) but here's where I've got most of my stuff: Carbs Unlimited. If you'll scroll down the page about half way to the boxes, the top-right box is for the primary (valve cover side) of the carb and you'll need a 75. The next box down (center-right) is for the secondary side and I'm pretty sure it's a 60 you're after.
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