Re: Having trouble starting my 400...

Posted by JWL On 2022/11/11 13:42:48

These Rochester carburetors take a special fitting. The fitting has a large diameter and fine thread. It is a special Rochester part and nothing universal I know of is a suitable replacement. There may have been a fine screen filter in back of this fitting. These fine threaded fittings are prone to strip the threads in the carburetors. At one time auto parts houses sold a replacement fitting that would cut new threads. I don't know if they are still available.

The fuel line from the pump has an inverted flare end and nut that screws into the carburetor inlet fitting.

Hope this helps. Howard, can you add anything else?