carb leak rochester 4bbl

[gmc 2500 4x4]

just had this carb rebuilt and its leaking where its circled in yellow. what can i use to stop this? epoxy?

[Troy Sr]

Those plugs eventually leak on Rochesters, just clean well and use some JB Weld epoxy. Let it fully dry before letting fuel get on it.

[gmc 2500 4x4]

thanx, i ran it outta gas and hit it with air to dry. dumb question, whats this for?

[geezer#99]

For a cleaner look use some of this. It’s clear.
It’ll seal a 1/4 inch hole in a gas tank, so it’ll seal your leak.

https://www.homedepot.ca/en/home/p.s...000708738.html

You did know not to use teflon tape on flare fittings, didn’t you?
I see some on your inlet fitting.

[geezer#99]

Originally Posted by gmc 2500 4x4

thanx, i ran it outta gas and hit it with air to dry. dumb question, whats this for?

Access port.
Your carb has several. Passages so they can machine inside the carb.

[gmc 2500 4x4]

thank you

[gmc 2500 4x4]

Originally Posted by geezer#99

For a cleaner look use some of this. It’s clear.
It’ll seal a 1/4 inch hole in a gas tank, so it’ll seal your leak.

https://www.homedepot.ca/en/home/p.s...000708738.html

You did know not to use teflon tape on flare fittings, didn’t you?
I see some on your inlet fitting.

i thought i was eliminating the leaking source, but its the plug. sealed it up today. thanx