Carb question

The carb on my stock 75 CJ5 258 I-6 seems to be leaking gas even after a rebuild. Can't figure out exactly where but it appears to be on the lower part. Anybody have an idea what's up and how to fix it? If I replace the carb what should I get and where should I get it? It is the stock carter 1bbl.

Thanks

While I'm asking for help... I keep burning up the doughnut gasket on the exhaust. Any solutions there?

 

My guess would be that the float inside your carb is sticking in the down postion and not shutting off the gas when it fills.

A couple of things you might try before tearing into again. Is to lightly tap on the side of your carb with a hammer. See if you can get it to unstick.

Another trick would be to pour or spray some carb cleaner in your carb.

If it still leaks , get it fixed. There is a lot of points of ignition for those gas fumes under your hood.

And when you are working on it, keep your door open, or better yet work on it outside.

 

Re the carburetor, how much gas? If gas is dribbling out in a stream, the float isn't working properly. If it's just barely wet, it could be leaking around the throttle shaft, or the gasket around the bowl or between the body and base aren't sealing. Not a lot of places to leak on this carb...

The bowl and base gaskets won't seal unless the surfaces they seal to are flat. You can use a straightedge and test that the sealing surfaces are flat.

Re the exhaust -
Get rid of the composition gasket (the donut) and replace it with a steel donut available from Jeep or Felpro. The flange end goes into the manifold. Later manifolds don't even have a gasket - the donut is cast into the end of the manifold.

 

Thanks.

I think I solved the exhaust problem by welding a flat flange onto the pipe and bolting it directly to the manifold with a gasket instead of the doughnut.

The carb is leaking enough gas to make it wet and sometimes drip. I actually had it rebuilt by a pro hoping for the best but no luck. He thinks the bowl might be cracked. It even leaks some when it isn't running. Like after I've towed it 200 miles there will be some gas wetting the bottom of the carb.

I'm seriously considering just replacing it in the name of time if a replacement isn't too expensive. Any good sources?
Thanks

 

I shall investigate the float!

Thanks