hadfield4wd
New member
I used a expandable rubber plug for the small end and a 2" rubber plug for the big end with the bolt removed and in it's place I used a threaded brass truck Schrader valve. I then use the nut on the threaded Schrader valve to tighten down and expand the plug.
I did 2 of my pipes recently. Do you have pictures of your setup? I wasn't real happy with mine but it worked. I just used a rubber plug in one end held on with safety wire. And the other was a a rubber pipe cap with a shrader valve and washers to keep it from distorting. 25psi. I used Mapp gas but I've got real torches just didn't want to heat too fast.