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Old 02-09-2018, 09:32 PM   #11
Midlife motor
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Join Date: Dec 2013
Location: Mesa, Az
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Default Por 15

I have had great success with POR 15. The first tank had almost no rust, so it came out great. The second tank had a previous poor job of another sealant done by another person. The POR did a great job on that one too.

On the second tank, two pinholes were discovered after putting in the second stage chemical, which is designed to remove rust. I did some research and felt the POR 15 would seal the pin holes from the inside. Sure enough it did. Just to make sure, after the sealant cured I sanded a small amount of paint off the outside of the tank around each pinhole and applied Quick Steel. Quick Steel is like a putty. It gets unbelievably hard and is easy to sand down.

One year later and not a drop has leaked from either pin hole.
It is better to remain silent and be considered a fool than to open your mouth and remove all doubt.
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Old 02-13-2018, 06:36 AM   #12
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Location: Colorado
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I took the gas tank from my RT3 #2 to a local radiator shop. Old school hot rod guy. He brazed up the leaking seams, cleaned the tank (don't know how or what he used) and then coated the inside with the green Northern Fuel Tank Liner product. It has held up well so far.

Formerly DTbop

1973 RT3
1981 IT-465
(1/2) 1982 IT-465
2001 Indian Scout

II Timothy 2:15 - "Study to shew thyself approved unto God, a workman that needeth not to be ashamed, rightly dividing the word of truth."

This applies not only to the Bible, but to your shop manual as well.
(borrowed from Dan's On-line Motorcycle Repair Course)
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