Cast fuel bowl leaking- round two

[Tim Ayers]

OK, so I posted a while back about my weeping/leaking cast fuel bowl for a '28 roadster. I recent took it off, ground the internal vertical seat that the drain needle seats in with a stone, found a better needle/screw (whatever that part is called) and it is still weeping. What am I missing?

 

[1crosscut]

Tim I went back and read your original post on this and it looks as if you may not be totally positive as the just where the fuel weep is coming from.
Turn the fuel off and get the carburetor totally dry. Then turn the fuel back on on and start dabbing toilet paper all around the carb to look for the leak. Toilet paper shows small leaks very well.
I've been fooled in the past by a weeping fuel line connection at the carburetor looking like a leak at the base of the carburetor.

 

[Tim Ayers]

Thanks, Dave. I'm fairly certain it's coming from there. I've done the paper towel dabbing trick and it always underneath the screw. It's small enough that it will "pool" up for a bit on the flat bottom of the screw and when you wipe it, it smells like stale gas. There will also be a few drops on the ground directly below it.

 

[Ayers1]

I had an issue a couple of months ago with what I thought was the fuel bowl on the firewall leaking. I finally figured out that the 40yo line to the carburetor was what was leaking. Put a new one on and it solved the problem.

 

[Brentwood Bob]

Permatex soft sealant on the plug?

 

[Tim Ayers]

Need to thank 1crosscut for his suggestion. I really watched closely and it turned out the source of the leak was coming from the inside fuel line needing to be snugged up against the male nipple of the fuel bowl.

Fuel was weeping from that connection and would travel down the outside of the bowl. It was ever so slight.

Thanks again, Fordbarn!

 

[Ayers1]

Glad you found the source! Have a great weekend!

 

[1crosscut]

Glad that you found it!

 

[Y-Blockhead]

Need to thank 1crosscut for his suggestion. I really watched closely and it turned out the source of the leak was coming from the inside fuel line needing to be snugged up against the male nipple of the fuel bowl.

Fuel was weeping from that connection and would travel down the outside of the bowl. It was ever so slight.

Thanks again, Fordbarn!

I once had a leak in that location I could not stop weeping.

As an alternative to buying a new gas line or sediment bowl, I used a brass flare gasket. No problems since... just incase your problem continues.