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cometic gaskets #1551082 12/21/13 12:56 PM 12/21/13 12:56 PM
Joined: Jan 2003 Posts: 32,394 Q Quicktree OP I Win
Quicktree OP I Win Q Joined: Jan 2003 Posts: 32,394	did you guys spray the copper coat on them between layers when they were new? I did on used ones

Re: cometic gaskets [Re: Quicktree] #1551083 12/21/13 01:00 PM 12/21/13 01:00 PM
Joined: Oct 2003 Posts: 7,506 Az Crizila master
Crizila master Joined: Oct 2003 Posts: 7,506 Az	Quote: did you guys spray the copper coat on them between layers when they were new? I did on used ones I just did the outsides to address any irregularities on the block / head surfaces. Assumed the other surfaces ( between layers ) would be good. Fastest 300

Re: cometic gaskets [Re: Crizila] #1551084 12/21/13 02:45 PM 12/21/13 02:45 PM
Joined: Jan 2003 Posts: 6,266 Renton Washington T Triple Threat master
Triple Threat master T Joined: Jan 2003 Posts: 6,266 Renton Washington	yes -Dustin 67 Dart, 9 second, 392" G3 Hemi 68 Barracuda 340 F/SA

Re: cometic gaskets [Re: Quicktree] #1551085 12/21/13 02:53 PM 12/21/13 02:53 PM
Joined: Nov 2003 Posts: 1,969 Chandler, AZ Duner top fuel
Duner top fuel Joined: Nov 2003 Posts: 1,969 Chandler, AZ	I've always taken them apart at the rivets and sprayed both surfaces of all 3 parts with 3M #99 adhesive.

Re: cometic gaskets [Re: Duner] #1551086 12/21/13 03:05 PM 12/21/13 03:05 PM
Joined: Jan 2003 Posts: 27,421 Balt. Md 3 383man Too Many Posts
383man Too Many Posts 3 Joined: Jan 2003 Posts: 27,421 Balt. Md	Sprayed a nice light coat on the outside of the head gaskets. They are the ones on my old 440 and they are still on there working good in my buddies Duster that we put my old 440 in. I built the eng in 2005. Ron Last edited by 383man; 12/21/13 03:07 PM.

Re: cometic gaskets [Re: 383man] #1551087 12/21/13 03:21 PM 12/21/13 03:21 PM
Joined: Jan 2003 Posts: 32,394 Q Quicktree OP I Win
Quicktree OP I Win Q Joined: Jan 2003 Posts: 32,394	i sprayed them all just to be sure, thanks

Re: cometic gaskets [Re: Quicktree] #1551088 12/21/13 04:40 PM 12/21/13 04:40 PM
Joined: Aug 2003 Posts: 43,157 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,157 Bend,OR USA	I've never sprayed mine per Cometics instructions I did spray a pair for a customers motor per thier instructions , there Cometic head gaskets where in bad shape, some of the nitrile rubber had worn off some of the steel gaskets but I did as ask and they didn't leak on a true 14.9 to 1 compression bracket motor I sprayed them on all sides by removing the exteranl rivets and sprayed away Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: cometic gaskets [Re: Crizila] #1551089 12/21/13 08:18 PM 12/21/13 08:18 PM
Joined: Nov 2008 Posts: 833 MN hemidup super stock
hemidup super stock Joined: Nov 2008 Posts: 833 MN	Quote: Quote: did you guys spray the copper coat on them between layers when they were new? I did on used ones I just did the outsides to address any irregularities on the block / head surfaces. Assumed the other surfaces ( between layers ) would be good. I did mine the same way and for the same reasons. Last edited by hemidup; 12/21/13 08:19 PM. Jerry Williams.

Re: cometic gaskets [Re: hemidup] #1551090 12/21/13 08:51 PM 12/21/13 08:51 PM
Joined: Jul 2009 Posts: 89 Cleveland, Ohio B BB73Challenger member
BB73Challenger member B Joined: Jul 2009 Posts: 89 Cleveland, Ohio	I did NOT spray anything per instructions. New heads and clean smooth deck surface. No leaks. I have heard of copper spray for re-use.

Re: cometic gaskets [Re: BB73Challenger] #1551091 12/21/13 09:19 PM 12/21/13 09:19 PM
Joined: Dec 2012 Posts: 1,823 Wind Gap,Pa. S Sammy top fuel
Sammy top fuel S Joined: Dec 2012 Posts: 1,823 Wind Gap,Pa.	Quote: I did NOT spray anything per instructions. New heads and clean smooth deck surface. No leaks. I have heard of copper spray for re-use. exactly...No need to spray the head gaskets but I do believe you need a special surface for cometics gaskets.

Re: cometic gaskets [Re: Sammy] #1551092 12/21/13 11:47 PM 12/21/13 11:47 PM
Joined: Jul 2012 Posts: 429 Washington skrews mopar
skrews mopar Joined: Jul 2012 Posts: 429 Washington	Hylomar spray FTW.

Re: cometic gaskets [Re: skrews] #1551093 12/21/13 11:54 PM 12/21/13 11:54 PM
Joined: Mar 2006 Posts: 9,835 MI, usa dvw master
dvw master Joined: Mar 2006 Posts: 9,835 MI, usa	Brand new with proper deck and head surfaces on my SB, no spray. They leaked until I through a can of stop leak in it. Never leaked again. BB same set up and machine work , no spray, no leaks. When I reused them on the BB I sprayed every side, no leaks. The SB is blown 12 lbs, the BB is 14.8-1. Both are studded Doug

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