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#1 |
Pick'n up the pieces!
Join Date: Sep 2002
Location: Marietta, Oklahoma
Posts: 198
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Mounting flanged aluminum gas tanks
I finally scraped up enough green to buy an aluminum gas tank. It has a flange that run the full length of the tank on each side that can be drilled and mounted to the rear frame section. I think they intended for it to mount solidly to the frame, but I think it should be on rubber mounts. I'm trying to come up with a good plan for this. I know minibike and several others have this type of set-up. Any pics would be apprecaited.
I'm thinking the if the frame has any twisting going on, that it will rip the aluminum tank. Any thoughts welcomed. Thanks, Danny |
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#2 |
Senior Member
![]() Join Date: Jun 2002
Location: Kansas
Posts: 702
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On the ones I have (built) installed, I use a 1/8" rubber strap between the flange and frame. Be sure to ground the tank to the frame though with a ground strap, for safety (static elect.). If your frame is twisting enough to damage your tank flanges, (witch I don't believe would happen) you need to address your frame ("loose" crossmembers rivets??). If it's moving that much, that would be affecting your wheel alignment (front & rear)
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The kid Build threads: 51 Jimmy http://67-72chevytrucks.com/vboard/s...d.php?t=154951 http://67-72chevytrucks.com/vboard/s...d.php?t=219902 http://www.classictrucks.com/feature...uck/index.html 68 C10 http://67-72chevytrucks.com/vboard/s...ad.php?t=50348 |
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#3 |
Senior Member
Join Date: Apr 2000
Location: Delta,Pa
Posts: 14,950
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the frames in these old trucks dont twist very much at all unless they are trash. i definately wouldnt see it twisting enough to rip the aluminum.
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Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member. |
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#4 |
Pick'n up the pieces!
Join Date: Sep 2002
Location: Marietta, Oklahoma
Posts: 198
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Thanks for the responses. My frame is in very good shape with tight rivets. I just thought the frame might tweek a little when going over uneven pavement. Its got to flex a little or it will fatigue. I guess it would move very little though. 1/4 inch rubber would probably more than do the trick. Thanks again, Danny
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#5 |
Registered User
Join Date: Jun 2002
Location: Lafayette, LA
Posts: 500
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Mine is mounted directly to the frame with two bolts on each side...maybe three. I'm personally not concerned with the frame moving enough to bother the aluminum tank. I would think the aluminum could take slight movements (something from school about modulus of elasticity comest to mind, but that's getting a little to technical). The only problem I have had, is getting a couple of the bed bolts in after the tank was installed.
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