Needed: The plug size for rear of Quadrajet

[Joe W.]

Hello,

Does anyone know the correct bolt size and thread for a plug
that screws into the back of a Quadrajet? It's creating a vacuum leak
which is preventing me from getting an idle.

Thanks.

Joe

[Patrick H.]

Re: Needed: The plug size for rear of Quadrajet

He means this one shown below in the rear of the base plate.
I think it's a pipe thread, but can't recall.

Anyone else know?

Patrick

[Joe L.]

Re: Needed: The plug size for rear of Quadrajet

He means this one shown below in the rear of the base plate.
I think it's a pipe thread, but can't recall.

Anyone else know?

Patrick

Patrick-----


Yes, it's pipe thread. I believe it's 1/4" NPT.