<VV> 1967 Corvair Monza fuel pump

Tony Underwood tony.underwood at cox.net
Fri Jul 23 23:13:09 EDT 2010

At 07:36 PM 7/23/2010, Charles Lee wrote:
>I've re-assembled mine and it continues to leak from the bottom seal,
>directly over the engine mount (can't be good for the rubber there ??!?!?)
>No sign of cracks or other aberrations in the seals there though, and all
>bolts are tight as can be.
>Surfaces seem to be smooth and clean, but still it leaks.

If the bottom section warps you can expect leaks no matter how tight 
you cinch down on the screws.   In fact, too tight can warp the 
bottom housing.

>Are these seals available separately ?  I have most of the parts, can it be
>rebuilt ?

Much of the leak issue stems from the bottom gasket.   And, they do 
harden and are difficult to get to seal back again if the pump is 
dismantled and they're allowed to dry out.   The saving grace is that 
the bottom gasket isn't terribly complicated, it's just a flat piece 
of gasket material albeit a SPECIFIC material.   It must be fiber 
reinforced or it will crack and leak.   This is what started a lot of 
the issues with the "bogus" pumps of a few years ago.

>Is the Corvair fuel pump the same for all years ?

'60 and '61 are different... use a different length (longer) 
pushrod.   The '62-up pumps are all the same.

You might try giving the pump a few days, then try snugging the 
screws again after the gaskets have a chance to settle back 
in.   Can't hurt to try, worked for me a time or two.


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