[s-cars] Stromung gasket replacement?

[Jerry Scott]

Chad
I have fixed a similar problem on a Viper by taking the pipe off the car 
and flat filing the stainless flange to better match the angle of the 
other flange. Keep filing and trying the fit until the two surfaces  are 
mating. Go to NAPA and choose a graphite and steel gasket (not 
composite). Then use Permatex Copper Ultraseal (red) on one side of the 
gasket, as they recommend.  This fixed my leak and it has not 
reoccurred, even with track conditions.  This assumes that you have 
enough thickness in the Stromung flange to file or machine the new 
angle. I tried several composite gaskets, which kept burning out.  If 
you get the two surfaces very flat you could also probably use a solid 
copper gasket, but you will need to have a very good fit for the two 
flanges.
Jerry Scott

Chad Clark wrote:

> Hi gang,
>
> I've had an exhaust leak between the downpipe flange and cat pipe 
> flange for quite some time now. I really only hear it at idle in the 
> mornings until fully warmed up. I've replaced the stock Stromung 
> gasket once already which only lasts about a month before I blow the 
> gasket out at the bottom. It's seems like the two mating flanges 
> aren't perfectly flat with one another at the bottom section of the 
> flange. I think a thicker gasket may just compound the problem. Has 
> anyone sourced a thick metal/copper gasket for this? Short of drilling 
> a small hole in the bottom of the flange and running a small bolt 
> through there, what have others done to cure this? I can't be the only 
> one that's had this issue. Appreciate all replys.
>
> Thanks,
>
> Chad Clark _______________________________________________
> S-CAR-List mailing list
> S-CAR-List at audifans.com
> http://www.audifans.com/mailman/listinfo/s-car-list
>