Is it possible to reuse my cometic headgasket that was torqued but not heat cycled? I had copper spray on it, but i cleaned off the copperspray with acetone. Can i simply spray copper spray on it and reuse it?

Its never been heat cycled.

 

IMO no. You have already crushed it. You might want to call them in the morning.

 

It's a cometic, so it's going to leak anyway. Use OEM or GE if you need a specific bore size.

 

IMO, probably yes. However, I think you ought to take additional steps to give it the best chance of working.

Many years ago I was told (by a bloke who made custom gaskets for a living, gaskets for everything from racing cars to monster ship engines) to use aluminised paint on head gaskets. Such paint has fine particles of aluminium dust in it, and is sometimes sold as being "heat resistant". The brand I used was 'Silverglo', but I'm sure there are others.

Proceed thusly; purchase small tin of aluminised paint, then pour off the liquid in the top of the tin (i.e. don't mix it into the thicker sediments below). Now mix up what remains, creating a thinnish paste. With a brush paint this onto the gasket as evenly as you can (doesn't have to be very smooth, but as even as you can reasonably manage), and allow to dry. Recoat, and allow to dry. Wipe any excess from the inner edges of the gasket orifices. Fit gasket etc..

The dried 'paint' will be soft, and will squash down / spread into an even layer as the head is torqued down, but will also fill any imperfections in the gasket and head / block surfaces. In use it will cure and harden up to some degree. I've used this method for years and never had any problems. I've used it on a solid copper head gasket that I re-used about four or five times with no problems.

 

You will be OK, if you did not run the engine.

 

use it!!!! It is a metal shim gasket not composite. There is no real crush procedure involved in the install. This whole miss conseption about gaskets been replaced is aload of bs in certain areas!!

 

If you want to use a coating, the Permatex spray copper has worked great for me.

 

i just did piston rings on a buddys car and the break in didnt go soo well, rings were leaking so i redid everything the next day using same cometic hg and no signs of leak.. compression still holds. this was tq at 70 lb BTW i say reuse it and make sure to CLEAN IT GOOD

 

use it, it'll be fine.

 

dammit, i already ordered a new one. :'(

 

well save it for a time when you will need a new one.

 

What do you use to clean your headgasket?