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Old 04-26-2012, 09:30 PM   #1
bubba353z
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Aluminum fuel tanks

Getting ready to buy an aluminum fuel tank for the 68 I'm building - has anyone had problems with the mounts cracking?
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Old 04-26-2012, 10:01 PM   #2
TobyArnot
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Re: Aluminum fuel tanks

I'm in for this. Been thinking about the same. I have talked to a knowledgeable race car fabricator and he says aluminum is prone to crack. His thought - " spend the extra money for stainless" ($$$$). I'll wait a see what others say.
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Old 04-26-2012, 11:39 PM   #3
clb1024
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Re: Aluminum fuel tanks

I was wondering the same thing about the cracking. I would also like to see how the are mounted. Pictures pictures pictures PLEASE!!!
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Old 04-27-2012, 09:38 PM   #4
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Re: Aluminum fuel tanks

Most installs involve drilling through the mounting flange and frame, then bolting it in from below. A 20 gal tank probably weighs in the 200-225 lb range when full, so it's not an immense weight - but with vibration, bouncing, and twisting I can see how cracking can occur.

I'm looking at ways to rubber mount the tank to the frame. I think some rubber bushings would do the trick, but I wonder if it would make any difference.

Any experience / input is appreciated.
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Old 04-28-2012, 09:14 AM   #5
TobyArnot
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Re: Aluminum fuel tanks

I don't have pictures, but a PDF file of my design from Solidworks. It's fairly large (30 gal.), but I plan on pullling a small travel trailer and going in that direction. Roughly 12" x 12" x 48". I will also modify the angle mounts to bolt thru to the bed crossmembers. Low enough to go under a tonneau cover. "Out of sight, out of mind".
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