GMC body leak test

I've seen others do a leak test by pressurizing the interior body and then using soap spray to find leaks. We have a windshield leak that happens when driving in rain. Hopefully now that I think I found it and sealed it it won't leak at least there.

   Craigslist furnace blower and 12" flex duct from a mobile home AC unit

      Bubbles from pass side window

                                        Think this is the one I was really after

                                            Lots of air coming out!

Brass thread insets in FRP tank flanges

 1/4-20 inserts for the valve flange, 8-32 for the sender flange. Sandblasted the inserts to get them real clean.

 West Epoxy instructions say bowl wax can be used for non stick coating on threaded fasteners. Harvey no-seep wax ring was only $1.48.

Hope this works out.

hotwire cutter

 Hotwire cutter for foam. 24 gage wire seems to run best at 19 volts at 40 inches.

 250 watt power supply. Volts adjust with a wiper across transformer windings

304 stainless tank bungs