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Filler Neck/Gas Tank ?
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Author:  Nino [ Fri Jun 29, 2007 3:02 pm ]
Post subject:  Filler Neck/Gas Tank ?

I swapped the new gas tank from my retired 68' Val into my 66' Val. (leaky) The problem being different filler neck sizes. The 68' neck and tank hole are wider than the 66'. I tried using a second grommet inside the 68' grommet but this leaks. Could the grommets be sealed or will I be changing filler neck holes? Carquest has an anearobic sealing compound that states it is gasoline proof. Any suggestions?
Thanks in advance!

Author:  SlantSixDan [ Fri Jun 29, 2007 4:29 pm ]
Post subject: 

I think in this situation, if I weren't going to buy the correct tank for the '66, I would cut the two filler pipes after measuring carefully. I'd overlap them so that the smaller pipe (connected to the quarter panel) would overlap the larger pipe (installed in the gas tank) by as many inches as possible. Then I'd use a good grade of RTV silicone to seal the gap and over that, I'd put a length of gasolineproof rubber hose (can be had from a hose and rubber supply place). I'd clamp the hose very securely to the two halves of the filler pipe, using at least two premium hose clamps at each end.

Author:  Nino [ Fri Jun 29, 2007 9:05 pm ]
Post subject:  Filler neck/ Gas Tank

Thank You Slant Six Dan. I think I can make that work. Fortunately the bone yard has not returned my call to sell them a stripped 68'.

Author:  skraecken [ Fri Jun 29, 2007 10:36 pm ]
Post subject: 

Quote:
Then I'd use a good grade of RTV silicone
Not in connection with gasoline.

Author:  SlantSixDan [ Sat Jun 30, 2007 7:07 am ]
Post subject: 

Quote:
Quote:
Then I'd use a good grade of RTV silicone
Not in connection with gasoline.
There are fuelproof formulations. But you're right, not just any ol' RTV will work.

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