Weber Carb

[Als Jeep]

I am needing some help with a new Weber. I don't seem to be able to get any resolution from the supplier.
I have an 82 CJ7 with 258. Rebuilt.
I have finally gotten the motor to run ok but it will not start without pumping the throttle about a hundred times or priming the carb when it is cold. No problem when it is warmed up. It does not seem to be getting enough squirt when you look into the carb and open the throttle, but when it is warm it accelerates ok. 22 in of vaccumn at idle, spraying everything while running shows no vacumn leaks. I have been into the carb several times. Did have to set the floats as the factory settings were way off. At this point I wish I had not bought it. Anyone out there with any experience would be a big help.
Thanks

[CJ]

Hello Als Jeep and welcome!

I have never tuned a Weber but many here have, I'm pretty sure you'll get a few posts as soon as most of them get off of work...

[2lostspace]

I have a Weber on mine and I have the same type of problems, having to pump it to get it to start. That and it wanting to die tell it gets warm.

With that said I have a youngen that just bought a new one and I will have to tune it for him when it gets here in the next week or two. I will post up what I find when I start that project, that and get mine tuned up when I figure it out.

Than once I get that one working right I will take all that frustration and do mine.

I hope that some one jumps in with something before than.

[Als Jeep]

How long have you had yours and where did you get it? I have sent mine in once. Got it back and it was not any better. They sent me another one and I am to send mine back. I had to take it apart and set the flotes correctly. Still will not start without priming. I am sending the one back and they said they would check it again. I got mine from Weber Carbs Direct on line. So far at least they seem to be trying. I had one about 8 or 9 years ago and it worked perfectly. If I get mine fixed I will post it. Thanks for you response.

[Als Jeep]

Anyone out there have any problem with old gas. I can pump the accelerator and see fuel on the runners in the manifold but it will not start. I can inject a small amout of fresh fuel into the carb with a syringe, about 1 1/2 or 2 ml. and it will start right up. If I get the jeep running it will do fine and will start well once it is warmed up. I bought the jeep last summer and have been working on it ever since. Never had this problem before so I am just looking for some feed back. there are no vacumn leaks, compression 150 or better, vacumn at 22 in. New webber carb, which is another story, but it is pumping fuel out of the accelerator circuit in a good stream. I do not know how long the fuel has been in it. It has no particular odor but is a little orange when I get enough into a can to detect the difference in color. Really frustrating.

[Tommy]

Not real familiar with the weber but it sounds more like a choke problem, or lack thereof. If the automatic choke doesn't work you can always rig a manual one. The 258 is cold blooded and needs the choke at startup. Once warm they purr like a kitten.

Tommy

[IOPort51]

Originally Posted by Tommy Not real familiar with the weber but it sounds more like a choke problem, or lack thereof. If the automatic choke doesn't work you can always rig a manual one. The 258 is cold blooded and needs the choke at startup. Once warm they purr like a kitten. Tommy

2X on the cold blooded.

[fishnchips]

holley makes a fuel pressure regulator, webers need to be regulated, my cj was hard to start even after warmup. it did not want to die when i would turn the switch off, and did not want to restart, so i would leave it running while on the trails. the reg. comes pre-set at 3 psi ( i think that is right) have not had a problem since i put this on......it still is cold natured but after warm-up starts and stops great......

Ronnie

[Als Jeep]

I finally figured out what the problem was with my weber carb and it was not the carb. It was old gas. Never saw this before. The jeep would run once it was started and would start if the motor was hot but not if it cooled off any. It took me a lot of time on this one but now it starts with only 1 pump when it is cold. Gas is like me i guess, it sure ain't what it used to be. I bought this jeep with gas in it and drove it home so I never suspected the gas as the problem. Live and learn.