it would need to have some realy advanced crust to have the seam leak
I have seen many manifolds rust threw where the tube meets the base
but I think a good coat of paint is a good idea and get a new throttle body
gasket at the dealer

Bob

----- Original Message -----
From: "Kai Mei" <kai@NEWCLEAR.US>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Wednesday, October 10, 2007 4:11 PM
Subject: intake air distributor...

> Hi all, mine is a little rusty and I decide to paint it while i'm
> refreshing the air and fuel hoses.
>
> Do they ever leak at the large raised seam? I can't see light or
> anything but it looks as if maybe it could be leaking. Any good
> solutions?
>
> Btw, I'm not certain it does leak either.
>
> Thanks all.