[TRChad]

Hey guys. Trying to button up my full Stebro exhaust on my TR. I have tried every kind of gasket from Ferrari but none are working. I need to find a doughnut gasket that can be used to connect the test pipes to the muffler that are made to crush. The factory gaskets are hard and the Stebro system will not accept them. Before anyone tells me to call Stebro...let's just leave it at that is not an option. I'm thing to find the supplier of the gaskets they use or a source here in the states that can ship easily without worry about customs. Any help would be appreciated. Car has been tied up for over a month waiting on a stupid 12.00 gasket!! Thx

[Brian]

I am not familiar with any doughnut style exhaust gasket that is designed to crush more than just the tiniest amount.

I assume there is a fit problem causing leakage? Welcome to the Stebro conundrum. There are reasons they have such a bad reputation.

It is hard to give advice without at least a good description of the problem but some fabrication/bending/welding assitance from your local muffler shop may be required.


Maybe a bad time to say this but life is too short to deal with low bidder/known bad supplier parts.

[carguy]

Does it require the same basic shape as the "factory" doughnuts with the chamfer on the edges....or some other shape?

[KKRace]

Not sure if this will help but on American V8 racecars I've had good luck using the "Ultra Copper" maximum temp Permatex on header gaskets. Never tried it on the donut type connections. I've used it many times when the header flanges were warped and didn't seal correctly.

My only other thought is see if you can find someone that works in a muffler shop to see if they can match something up for you?

http://www.rockymountainatvmc.com/pr...810875&ref=gmc

[TRChad]

Sorta....its for the connection between the test pipe and muffler...so basically it's flat on one end and curved on the other....shaped like a dough nut. The gaskets I got from Stebro were like a softer...almost woven type metal. The ones I ordered from Ricambi were a very hard metal and when smashed into the junction and tightened...then snap and break. I'm very frustrated...can't believe this stupid 4.00 part is holding up the whole operation. There has to be a supplier here somewhere!

[sunskr]

Second the use of Ultra Cooper. Have used it many times to repair exhaust systems on my 4x4 to get back from Baja back into California at border crossing.
Something about US not liking open exhaust pipes.
Have one repair that is 5 yrs old and still solid. A little Ultra cooper on donut and bolt it up.

[TRChad]

Originally Posted by KKRace

Not sure if this will help but on American V8 racecars I've had good luck using the "Ultra Copper" maximum temp Permatex on header gaskets. Never tried it on the donut type connections. I've used it many times when the header flanges were warped and didn't seal correctly.

My only other thought is see if you can find someone that works in a muffler shop to see if they can match something up for you?

Permatex Ultra Copper Maximum Temperature RTV Silicone 3 oz. | Rocky Mountain ATV/MC

Yeah, I used that stuff exclusively on my GTR years ago for the mid pipe. It worked fine but this thing is like a front row view of the whole system through the back of the car. Exhaust looks like art work and don't want to smear orange silicone all over the polished pipe, yah know?

[kerrywittig]

Try these...............

[TRChad]

Originally Posted by kerrywittig

Try these...............

Hmm..part number is coming up invalid on napa site

[carguy]

I think what Kerry posted is the smaller 2" Header-to-precat doughnuts, and you need the larger 3" doughnuts.....right? You may have to have someone "tweek" the flanges & pipes to get them parallel. Then get some new doughnuts, grind one side flat and leave the other side chamfered. Am I picturing this right? It may help if you post a picture? And if you can limit the amount of sealant used, I agree with the others that ultra-copper is good stuff.

[TRChad]

Yes. I need the larger 3" gasket. Does anyone have a number for this part?

[KKRace]

Originally Posted by TRChad

Yeah, I used that stuff exclusively on my GTR years ago for the mid pipe. It worked fine but this thing is like a front row view of the whole system through the back of the car. Exhaust looks like art work and don't want to smear orange silicone all over the polished pipe, yah know?

You don't have to put it all over the pipes, just a little on the mating surfaces of the donut gasket.

[Brian]

Originally Posted by KKRace

You don't have to put it all over the pipes, just a little on the mating surfaces of the donut gasket.

It is still just a band aid.


Fix it right. Fix it once.

[TRChad]

Here's what I need...searched all over and nobody here knows where to find them. 3.5" outer diameter, 2.5" inner diameter and 7/8" thick.

[mouser57]

Felpro 8194