Turbo Exhaust Sealing Area Dimensions

[joshs1ofakindxj]

I recently changed all the seals around my turbo when I installed a pyrometer, and on the turbo exhaust connection, there is a thin metal ring gasket that goes in the connection to the exhaust pipe that is clamped together. This thin metal ring is not cutting it for me, leaking quite a bit, so after kicking around some options to get a thicker piece of sealing material in there, I think I am going to try and find an exhaust gasket at the part's store that is large enough that I can cut a ring out to insert in there. I should be able to find one of the square, soft, gray-ish lead gaskets that should work. Hopefully it doesn't melt out!

If anyone has one of these thin round gaskets hanging around that they can measure for me, for a C-turbo if it matters, I would be very thankful. I just need the ID and OD. Heck measuring the exhaust pipe or exhaust side of the turbo would also work for me so I know the sealing area.

 

[Westech]

You can get the caskets from just about any military parts suppler for about 3-6 bucks.
I have used RTV copper on them to to seal a leaky one up. Just make sure your pipes are VERY clean.

 

[joshs1ofakindxj]

I had a new mil-spec gasket, but the thin metal is just too thin.

I thought I looked at all the available RTVs and none were rated for high enough temp (1250F max). If the copper works I will give it a try though.

Edit: just looked it up and the copper is rated for 700F max intermittent. I'll try it if you say it works though.

 

[Westech]

if the exhaust pipe ever got to 1200* your truck would be on fire. You will be fine with Copper.

 

[joshs1ofakindxj]

I see 1150F just above the turbo in the exhaust manifold all the time. I can't expect the temperature to be significantly less at the turbo exhaust. I need a good laser thermometer to check it out.