Technical Carburetor rebuild service?

I'm wrestling with a Rochester 4GC ('57) and it keeps winning. I've tried rebuilding it, but it's not acting right... might be time to call in an expert. Any recommendations for someone to rebuild it? Anyone local in the DC area?

 

Most carburetor problems are really ignition issues.

 

@carbking

 

I had one of those goofing up. The accelerator pump rod was the wrong length, floats not set properly and a vacuum leak between the body and base.
Got that handled and it worked well

 

unless its a holley. then it probably really is a carburetor issue

 

This "carburetion vs ignition" thing is just plain dumb. Almost all the members on this forum are savvy enough to know the difference the great majority of the time. Sure, it's kinda funny the first time you hear it, but I think it's been overused in this thread that was asking a legitimate question.

 

It's a carburetor , they're really pretty dumb ..

 

Try Sal goes by scicala on the Ford Barn.

 

tell that to my 2300 on its 4th power valve in 700 miles

 

Did you install a blow out preventer in the base ? Easy to do & inexpensive .

 

huh... didnt think that would be why.
guess it makes sense.

 

I've got a complete Rochester parts manual and service manual, post the numbers of the caarburetor nd I will look to see if I have anything on it.

 

The Rochester 4GC is an excellent carburetor. While not quite as technologically advanced as the Carter AFB, TQ or the Rochester Q-Jet; the 4GC and the Carter WCFB are probably the two most reliable 4-barrel carbs ever produced. If it is not acting properly, there is a reason.

If the issue is unresolved (sorry, late to the thread), give me a call during normal business hours (9-12, 1-4 Mon-Tues central time), and I will try to help.

Jon

 

At some point one starts to wonder if it’s the carburetor.