Cometic head gasket install

[Chris McDade]

Ok who installs them try?

Who installs them with copper spray?

Feed back please




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[forcefed3.8's]

I have copper sprayed in the past. I have never leaked coolant, just a slight oil seep, which doesnt bother me because there is always oil coming from somewhere. On the last one, i just did a very light coat of ultra grey around the oil drain. Dont know the outcome yet.

 

[BEATAV8]

I used to use the copper spray. This last time I installed dry. No regrets.....

 

[Chris McDade]

Ok, I'm thinking dry this go around. I had a small oil leak last time using copper spray.

Thanks


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[GBGN1]

No spray. I went dry and no issues- no stink no scratch.

 

[Chris McDade]

Good to hear. I just put them on dry.

Thanks


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[huntsg]

Dry for me.

 

[S10xGN]

Question: Do ya'll remove the rivets? I may be using Cometics on my LS build (alum heads and block). Don't want to make any unnecessary dents in the deck surfaces...

 

[Chris McDade]

No need to remove rivets they don't get in the way.

 

[Turbo38V6]

I have copper sprayed in the past. I have never leaked coolant, just a slight oil seep, which doesnt bother me because there is always oil coming from somewhere. On the last one, i just did a very light coat of ultra grey around the oil drain. Dont know the outcome yet.

X2. Dry here with a little RTV around the oil drain.

 

[Mike Licht]

the worst thing you can do is separate the layers and spray them, cometic will tell you if you do that they will leak and not seal, Put them on dry, they have a thin rubber coating to prevent seepage between the layers. I have sprayed the outside with copper in the past but see no need. I would highly recommend a retorque after one good heat cycle.

 

[Toby_Goodmk]

Fresh Cometic .060 install here. Dry....torque....let sit overnight no heat cycle....needed a retorque. Ran many heat cycles and still tight. The last guy that did my cometics used copper spray and did not retorque overnight....blew the #1

 

[S10xGN]

No need to remove rivets they don't get in the way.

Thanks Chris!