How to clean 3.6 cyl graphite gasket?
 

My 964 3.6 cylinder head has the original graphite gasket that is compressed into and filled the cylinder groove.

Anyone has any idea how to remove this so I can use the newer steel cylinder head?

See picture. The dark band is the graphite gasket. I can scrape it /w the tip of a screw driver but is afraid it will scratch the cylinder.

<img src="http://forums.pelicanparts.com/uploads4/cylinder1110436128.jpg" border="0" alt="">

thanks,
anthony

you could have someone chuck them up in a lathe and trim it out carefully.

I used a screwdriver that I ground to make a chisel narrow enough to fit the groove. I dug the tip into the ring and tapped it with a small hammer like I was trying to spin the ring in it's groove. That opened up a crack between the ring and the groove wall; enough that I could carefull pry out the seal in pieces.

The gasket is 3 layers: graphite/aluminum/graphite. I cleaned out the first layer and mistook the middle alumimum layer for the bottom of the groove. Doh!

-Chris

Uh oh. How deep is the gasket and how much do i have to dig?

I've used a small screwdriver to scrape the graphite to aluminum. Continue scraping but it's all aluminum.

How deep is the cylinder groove?

http://forums.pelicanparts.com/uploa...1110527639.jpg

thanks,
anthony

If you haven't pulled a ring of aluminum out of the groove you have only removed one layer of the 3 layers. See my previous post. It's hard to tell but it looks like you scraped just the top graphite layer off.
-Chris

Thanks to Chris & Walt, I finally got it out! I had to take a chisel and and came into the gasket at 45 degree. See pic. The gasket itself is a bit less than 1mm.

See pictures. Hopefully, this will help someone with their 3.6 rebuild.


http://forums.pelicanparts.com/uploa...1110602949.jpg

http://forums.pelicanparts.com/uploa...1110602989.jpg

---anthony