Re: Carb rebuild II

Posted by Jim Kavanagh On 2009/7/23 13:06:59

A little more follow-up on the carb:

Starts and runs strong. Pretty strong acceleration, except at top end it drops off a bit, I may need slightly richer mix, or possibly its a faulty power valve.

Everything is good when cold. When I run it up to temperature, it does leak after I turn it off. Not right away, but within just a few minutes. The leak is inside the throat, both sides. The gas collects on the closed throttle plates and then leaks out of the bottom plate and mostly onto the manifold. I needed to prime this AM to start, which I usually would not have to do except after the car sat for a week or so.

Once it is running, it idles pretty smoothly and does not leak at all (or if it does, I guess it goes down the manifold as the throttle plates would be slightly open).

Where should I look for the culprit?

Thanks