Re: Cracked EM

[Doyons <doyons@lamere.net>]

Hello.  I wouldn't suggest welding the manifold.  I tried that on my 5000
and it only worked for about three months.  I even baked for quite a while
to make sure it would hold up.  Wrong!  Now I have to get back in there and
do it all over again.
Good Luck,
Chad

86 5000cs wife's car
86 4000csq my car
91 gti 16v Autocross car

Aleksander Mierzwa wrote:

> Hi List!
>
> It seems that if you own an old Audi, you simply _have_ to face some
> typical problems. Yesterday while crawling under the car I discovered
> that my exhaust manifold is cracked right at the #4 flange. So, I need
> some advice on possible repair methods.
>
> 1) Has anyone had good effects with welding? I've heard that the old
> style 5KT manifold is prone to warp by design and it will crack again
> even if welded and machined. True/not true?
> 2) I, therefore, consider finding a used two-piece manifold (I cannot
> afford a new one. I cannot, period). I understand that the two-piece
> unit doesn't warp and therefore buying a used one is fairly safe. Good
> idea/bad idea? Which Audi models was the two-piece unit fitted to? Would
> a manifold from a 200T20V/S2/S4 fit my 5K? Could someone please pass the
> p/n for the correct manifold to me?
> 3) Fortunately, I don't see any broken studs (yet ;-) ). If all studs
> are intact, can I leave them in place or should I better renew them?
> 4) What do I risk if I drive the car in this condition? I can't hear any
> exhaust noise from the manifold.
> Any advice will be greatly appreciated.
>
> Aleksander Mierzwa
> Warsaw, Poland
> mailto:alex@matrix.com.pl
> 87 Audi 5000CS turbo (mine)
> 88 Renault Medallion wagon (mom's)
> 91 mountain bike (just in case both cars broke at the same time :-)