Now that they're $80 for the turbo side, I've figured it would interesting to find an alternative so pulling the downpipe isn't a wallet buster.

I already tried using the copper/silicone RTV and laying a bead on both sides of the metal gasket. It didn't work.

I've come up with a few other candidates:
Mr Gasket Ultra Seal Exhaust Gasketing

McMaster-Carr Graphite Gasketing

Your thoughts?

 

hmmm.... great idea! I'm very interested in this as well.

Rob

 

That material will never hold up to the heat. It may cost less, but you'll be replacing it soon afterward... how much is your time worth to you?

 

Considering that the OEM replacement is now over $75, I don't consider it a waste. I do honestly have more time than money now.

I was figuring that since red-hot for steel is around 1000° F, any gasket that supports that should suffice. The hard part is finding a gasketing that is documented to handle it.

 

There's a reason why Mazda used metal gaskets. If you want to experiment, be my guest, but I will warn you that even on a Supra the "make it yourself" gasket material you found doesn't hold up for **** between the turbos and the downpipe.

 

I may try this ceramic/steel gasketing I have here. It will certainly seal better than the leaking OEM gasket, and it won't hurt anything to install it and start the car. Considering the temperatures involved, I suspect I'll need to find something even higher temp.

As far as a reason - it strikes me as ridiculous that FD owners should have to buy an $80 gasket every time they pull a downpipe. If I would find something effective, I'm sure others would appreciate the option.

Anyway, I'm sorry you got **** in your Cornflakes this morning. It's a much more sensible idea than to cut up a perfectly pristine 95 FD. It would have been worth your time to just buy a Lingenfelter, but THAT'S NOT MY BUSINESS.

Dave

 

the oem dp gaskets last forever, you dont have to replace it every time

 

That's a common rumor. However, mine's leaking. Maybe I will try a used gasket just to see if that helps.

<PM'ing Fritz>

 

The local dealership told me the newer more expensive gasket is a different part number. Is this true, and what is the difference?

Dave

 

I agree! Last year when I put on my downpipe I re-used the old gasket. It never leaked! 6 months later I pulled the engine to replace my clutch and I still re-used the same ole gasket when I put the down pipe back on. It still doesn't leak. Same goes for the two manifold gaskets.

 

n3a1-13-491a is the old #

n3b7-13-491 i think is the new #

i dont know what the difference is

 

Contact "ScrapFC" He made me copper annealed gaskets for my exhaust system. $15 to $20 each and they will last a lifetime.