jhg41977

I am hoping to have my FD exhaust in the next month or so. In prep for that I am trying to get all the seals, gaskets clamps etc ahead of time. I went through the PET catalog and got all the numbers. Then I went to AutoAtlanta and filled up my cart. Ouch. I checked on Suncoast and it does not look like they have any exhaust parts such as clamps etc. Aside from the dealer, are there any sources? Design911.uk has them and they are cheaper but shipping will probably kill any price difference. I would like to support a site sponsor if the price is reasonable.

Thanks
Jim

IXLR8

Try Luke at Sunset Porsche 1-800-346-0182.

Just wondering what "gaskets" that you need unless you are taking the heat exchangers and catalytic converter off to renew all gaskets and fasteners.

If just installing the mufflers, those clamps / doughnuts and straps are re-useable. They can be cleaned up nicely since they are stainless steel. Maybe just replace the bolts & nuts.

jhg41977

I have one of their 200 cell cats on order as well as the stage IIs, so I was planning on replacing all the exhaust gaskets and donuts. I was also going to replace all the clamps. I know its isnt necessary, but they are not pretty and have been removed a few times now. With a new exhaust I just dont want ugly clamps. Oh, ordered new wide ovals too!

jhg41977

How would you clean up the clamps? They are brown, I assumed thet were steel not stainless.

IXLR8

I took them to work and glass beaded them. IMO, these 14 year old at-the-time clamps look pretty new and clean after doing so. You can also just see the clamp between the cat and muffler in the gap between the bumper and exhaust tip.

As for the stainless steel doughnuts, I used fine wet sandpaper to clean them up under running water till they were like new. Both items appeared to be original.

Mike J

and replace the nuts/bolts with stainless fasteners - the stock ones are steel and rust like crazy, often to the extent that you either cut them off or apply enough torque to break the bolt.

You can get the right bolts/nuts/washers as a good bolt supply house.

Cheers,

Mike

jhg41977

I forgot those donuts were stainless! I replaced one last time I had the exhaust off. I cant see why those would not be reuseable.

I do not have access to a blaster. Yet. Its on my list of wants for the garage. I could probably use the wire wheel on my bench grinder just as easily?

I did replace some of the nuts and bolts last time I had the exhaust off. I already made notes of what I needed and how many. I just went to Lowes last time.

I guess that really leaves just the exhanger to cat gaskets then.

I was wondering why the donuts were $30 +/- each!

chaoscreature

The wire wheel on a bench grinder will work just fine. I don't want to sound like your mother, but wear safety glasses when doing that.
You will want to purchase new the three holed heat exchanger gaskets. I was able to re-use mine 2-3x but after that they started leaking noticeably.

jhg41977

Thanks for the warning about glasses. I wear them anytime I use the grinder, drill, impact etc. When I was a kid I had an impact socket crack and it sent a piece flying by my head. Since then, I am very good about wearing safety glasses!

IXLR8

And use anti-seize paste as an added measure. I use it with plain and stainless steel fasteners. Stainless has a nasty habit of galling.

I can't remember seeing locking stainless steel nuts other than nylock stainless steel nuts. The latter would be useless anywhere near an exhaust system which is what I found on my 993 when I bought it. Needless to say, the nylon ring was no longer.

jhg41977

I used high temp loctite on the stainless nuts. Ive also seen people take a punch and tap the last visible thread to lock them on.

Someone actually used a nylon lock nut in a high temp location? Brilliant!

Just noticed you have a speed yellow 993. My wife shot that down before I finished the description of the car!

IXLR8

The original nut probably rolled away into the abyss somewhere and they wanted to finish the job that day, I guess.

Anyway, it and very slight leaks at the cat-to-exchanger gaskets had me take my whole exhaust system off right to the cylinder heads. I wanted to replace the nuts at the cylinder head studs to make sure I can get those off, while I still could (anti-seized all fasteners as evidenced in my pic). I'm good for a long while without having to worry.

BTW, if you do want to glass bead those clamps, most machine shops and the odd garage would have a media blast cabinet.

Mike J

I use copper nuts on the head studs for the exhaust system - seems to work great.

Ed Hughes

I went to copper nuts on my '84 when I switched to headers.

IXLR8

We carried them at VW when I worked there, and they were for that specific use...exhaust systems. I never thought about it, but are they a copper alloy or copper coated?