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82 gas tank question

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Old Jul 12, 2007 | 12:55 PM
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Default 82 gas tank question

I am in the process of sanding down my gas tank to repaint and I have found 3 small pinholes on the bottom with I am planning to have repaired. Did an 82 gas tank have a inner tank liner and if it did does this actually hold the gas instead of the exterior tank shell?
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Old Jul 12, 2007 | 01:26 PM
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Ok, my 82 did have an inner liner. The interesting thing was it apparently separated from the tank as I could hear gas still sloshing around after I had emptied the tank! Don't ask me how this happened. I ended up buying a new tank (about 250.00) from Ecklers, I didn't want to tackle the project again.
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Old Jul 12, 2007 | 04:50 PM
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Originally Posted by rsvette82
I am in the process of sanding down my gas tank to repaint and I have found 3 small pinholes on the bottom with I am planning to have repaired. Did an 82 gas tank have a inner tank liner and if it did does this actually hold the gas instead of the exterior tank shell?
Yes it has a hard plastic lining.It would have to be responsible for holding the fuel,I cant imagine another reason for it being there.How are you going to repair the pinholes,could repairing do more harm than good?
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Old Jul 13, 2007 | 10:15 AM
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Yep. The liner is there for rear impact safety purposes.

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Old Jul 13, 2007 | 02:44 PM
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Originally Posted by DWncchs
Yes it has a hard plastic lining.It would have to be responsible for holding the fuel,I cant imagine another reason for it being there.How are you going to repair the pinholes,could repairing do more harm than good?
I will probably epoxy the pin holes and then put the POR sealant on the exterior.
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Old Jul 13, 2007 | 05:17 PM
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Originally Posted by rsvette82
I will probably epoxy the pin holes and then put the POR sealant on the exterior.
I hope some other guys chime in but would it hurt to just leave them open?What I mean is the plastic is there to hold the fuel and be flexable enough to resist a punture.The metal just holds the shape of the plastic- a metal skeleton mesh would do the same thing.Then if the plastic did spring a leak it would be detected.I know the metal is just another tank for added security.But water tends to build up between the plastic and the metal due to condensation and rusts holes in the metal.I wonder if the holes were just left open to drain the moisture wouldnt be an OK idea? Then if the plastic sprung a leak you would find out like a normal metal tank but you wouldn't have the build up of fuel between the plastic and metal causing the plastic to cave in reducing the usable fuel capacity.I think I might be inclined to leave the holes as condensation drains unless further thought convinced me it was dangerous.Any thoughts?
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