Re: Is there a hi-temp expanding foam on the market?

"jim" <"sjedgingN0sp"@[EMAIL PROTECTED]
> wrote in message
news:1210461952_1998@[EMAIL PROTECTED]
>
>
> none2u wrote:
> >
> > "jim" <".sjedgingN0sp"@[EMAIL PROTECTED]
> wrote in message
> > news:1210378750_1932@[EMAIL PROTECTED]
> > >
> > >
> > > Fred Mann wrote:
> > >>
> > >> Unfortunately, everything is so rusted that it would be a massive
> > >> undertaking to do it right. Not worth it to me.
> > >> I may try the red RTV though. Thanks!
> > >
> > >
> > > Furnace cement ought to work. Get it from a place that sells wood
stoves.
> > > Follow
> > > the instructions for filling cracks. Give it a full day to dry. You
have
> > > to make
> > > sure you get all the moisture out before you get the temp above
boiling or
> > > it
> > > will crack.
> > >
> > > -jim.
> > >
>
> >It wont work either. Been there done that. It wont take the gas
pressure
or
> >the heat.
>
> Yes I hesitated to offer the advice because it probably won't work if
not
> done correctly. Furnace cement will definitely take the heat - a lot
more
> heat than a car exhaust usually gets. And it expands  at the same rate
as
> iron so heat and expansion aren't a problem even if you get the exhaust
> cherry red.
> It won't work on tin exhaust parts that flex but for filling a crack
> where it is rigid and there is no flex it shouldn't be a problem. Of
> course there is a bit of skill to applying it correctly so that it
adheres
> and locks itself in. It won't work on furnaces and stoves either when
not
> applied correctly.
>
> -jim
>
>
> >He has to live with it or replace the gasket or manifold.If its
> >>warped too much.

I think I'll try this next ... if there is a "next" . I JB welded it a few
days ago ... maybe it will hold more than a few months. I don't drive that
much.
And by the way, the car is a 1983 VW Rabbit GTI. And the rust problem is
limited to the nuts and bolts - the manifold seems to be fine. The nuts
are
starting to look like something off of an excavated sea wreck. I don't
think
I have the tools or patience to do it right.
Thanks again for all of the help!!!