Hi,
Our GT6 resto is progressing and we have now arrived at the fuel tank. We have two, both horrible, but good used ones are very rare. So the marginally less horrible has had the rust cut out of the bottom of it and patches TIG welded in. Pressure testing with air (at 3psi) suggests the welds are leak tight, though trouble sealing the sender opening and tank inlet make 100% checking hard.
To seal any remaining pin holes and stop any remaining internal rust developing I'd like to seal the inside of the tank with one of the slosh sealants - but which one? And how to properly pre-treat. We've already hot caustic washed the tank and could do so again. I also have some citric acid and phosphoric acid I could use to reduce and passivate the remaining light surface rust......
Anyone have any experiences, good or bad of this process?
Thanks
Nick
Before
Now
Our GT6 resto is progressing and we have now arrived at the fuel tank. We have two, both horrible, but good used ones are very rare. So the marginally less horrible has had the rust cut out of the bottom of it and patches TIG welded in. Pressure testing with air (at 3psi) suggests the welds are leak tight, though trouble sealing the sender opening and tank inlet make 100% checking hard.
To seal any remaining pin holes and stop any remaining internal rust developing I'd like to seal the inside of the tank with one of the slosh sealants - but which one? And how to properly pre-treat. We've already hot caustic washed the tank and could do so again. I also have some citric acid and phosphoric acid I could use to reduce and passivate the remaining light surface rust......
Anyone have any experiences, good or bad of this process?
Thanks
Nick
Before
Now
