How to clean a Ner-A-Car gas tank
This Neracar had clearly sat for some years, judging by the amount of varnish in the gastank. Underneath the varnish was a Kreem job that was bubbling up.
The POR-15 Heavy Duty Utility & Cycle Tank Repair Kit had the best balance of wide use and of rare horror stories. The kit seems very well thought out, with three different cleaning steps with explanations for their need. The company claims that their product is different from the two other main classes of tank liner on the market, and the few failed applications I read about, the authors admitted that they hadn’t strictly followed the directions.
The POR-Strip got out most of the varnish and Kreem liner, and rust was visible underneath. However, there were still flecks of the Kreem and some sort of cakey brown stuff stuck to the tank that the stripper wouldn’t remove, but that scraping with a screwdriver would. Days and days of experimentation with different chemicals, a horrible process, was no help.
Filling the tank with nails and shaking made some difference, but took too much time and too much physical effort for little results. To help, I built a contraption powered by an electric drill, and my sister hooked up a ceiling fan dimmer to control the speed.
About four hours of this cleaned all of the Kreem and brown stuff out, leaving shiny metal. There was still a little of the brown stuff, which I guess is converted rust, in the pits of the metal, and you can still see a little of the Kreem in the tank’s center seam.
The POR-15 went in easily, but of course I made a mess. The result looks beautiful. I hope it turns out to be one of the success stories. I’ll get a pic in here soon of the results.
Here are some neat pics of the emblem on the gas tank’s side and on the gas cap.