POR-15 Fuel Tank Repair Kit - Lessons Learned and Proper Application

[850 Combat]

I only used POR15 once, in the 80s. I had sent out the tank on a '68 Royal Enfield 750 Interceptor to have it rechromed and a couple dents filled with braise and ground down. When it came back, it looked fantastic, but it leaked a little in a seam. I used the POR 15, following the instructions. It stopped the leak. It also covered what rust was in the tank. The tank had been plugged when it was rechromed. I can't say for sure how well it worked in the long term. I sold it after a decade. It was still fine then. I did it mostly in the house. It was winter in Fairbanks and the garage was unheated. It did stink up the kitchen pretty well when I was using it. A well ventilated area or a respirator would have been safer.

 

[dpep]

Great thread. Is there a best way to coat/seal the fuel level unit before reinstalling it? It was coated in rust when I took it out but looks great after an extended dip in Evaporust. My plan is to just dip it the drained degreaser and the drained metal prep and then brush on the sealer.
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[1978GS750E]

I've never used any sealer on the sending units in any tank that I've lined. My thought is that if you have all of the rust under control on the sending unit, it should be good to go!

Just my $.02

 

[oldGSfan]

Really good info WingMan71. I used the POR 15 due to a small seam leak on a CB750 tank up by the neck, and I am impressed with how it flowed and of course stopped the leak. I did just about exactly what you said and Bob's my uncle.