cometic,acl, headgasket issues?? - GT-R Register - Official Nissan Skyline and GTR Owners Club forum

gibson · 20th July 2008, 04:53 PM

looking at both of these gaskets toward number six there is a rivet on the multi layer gaskets that holds the layers together it seems to me that the rivet by No 6 hits the surface of the head on both ACL and Cometic gaskets is this normal???, I see it as a gasket failure waiting to happen.

Any opinions

Cheers

Madden · 20th July 2008, 05:14 PM

There was a thead on here about the cometic gaskets sealing less the the stock items. It was done on a test by a guy in Japan. It didn't bring up your rivit problem.

Do a search.

I have an old cometic gasket here i can check if you want?

gibson · 20th July 2008, 05:30 PM

hi Madden thanks for the info.. did do a search but couldn't find any info will try again.

Madden · 20th July 2008, 05:36 PM

I will have a look for ou mate.

Madden · 20th July 2008, 05:41 PM

Here you go mate. I couldn't find it on here so went to google.

Beyond The Dyno » All Head Gaskets are Not Created Equal

gibson · 20th July 2008, 05:55 PM

ok xs engineering ... thanks again Madden been looking on here from my last post.
They cover the compression seal or cylinder ring and slate another brand (not good business.. but any way) my problem (i think )is the rivet locations on both the above gaskets..i may just go standard Nissan gasket and oring the block.

Andy W · 20th July 2008, 05:56 PM

it will touch on the head, but there isn't anything for it to touch on the block, it isn't compressed between the 2

lay it on a block you'll see what i mean

Madden · 20th July 2008, 06:02 PM

I know alot of peole run the cometics with no problems what so ever. So you should be fine.

gibson · 20th July 2008, 06:47 PM

Andy W i have checked that on the block .. the interesting thing is that when all bolted down the rivet makes an indent in the head surface suggesting that there is some compression on the rivet or am i just being OTT on this one.

HenrikE · 20th July 2008, 07:41 PM

I run a cometic and i noticed the rivet but then it's like Andy says and it works fine for me.

gibson · 20th July 2008, 10:22 PM

thanks for all replies

Chris Wilson · 30th July 2008, 11:48 AM

Take the rivet out if it really bugs you, it's only their to stop the things separating in transit.

gibson · 31st July 2008, 09:06 AM

That was my conclusion also

20th July 2008, 04:53 PM	#1 (permalink)
gibson GTR Register Member Join Date: Feb 2005 Location: hertfordshire Posts: 375	cometic,acl, headgasket issues?? looking at both of these gaskets toward number six there is a rivet on the multi layer gaskets that holds the layers together it seems to me that the rivet by No 6 hits the surface of the head on both ACL and Cometic gaskets is this normal???, I see it as a gasket failure waiting to happen. Any opinions Cheers

20th July 2008, 05:56 PM	#7 (permalink)
Andy W GTROC Member Join Date: Dec 2005 Location: Eastbourne Posts: 1,160	it will touch on the head, but there isn't anything for it to touch on the block, it isn't compressed between the 2 lay it on a block you'll see what i mean __________________ bovered me, do i look bovered, bovered , no AA join here

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20th July 2008, 05:14 PM	#2 (permalink)
Madden New Users Join Date: Nov 2004 Location: Berkshire Posts: 1,946	There was a thead on here about the cometic gaskets sealing less the the stock items. It was done on a test by a guy in Japan. It didn't bring up your rivit problem. Do a search. I have an old cometic gasket here i can check if you want?

20th July 2008, 05:30 PM	#3 (permalink)
gibson GTR Register Member Join Date: Feb 2005 Location: hertfordshire Posts: 375	hi Madden thanks for the info.. did do a search but couldn't find any info will try again.

20th July 2008, 05:36 PM	#4 (permalink)
Madden New Users Join Date: Nov 2004 Location: Berkshire Posts: 1,946	I will have a look for ou mate.

20th July 2008, 05:41 PM	#5 (permalink)
Madden New Users Join Date: Nov 2004 Location: Berkshire Posts: 1,946	Here you go mate. I couldn't find it on here so went to google. Beyond The Dyno » All Head Gaskets are Not Created Equal

20th July 2008, 05:55 PM	#6 (permalink)
gibson GTR Register Member Join Date: Feb 2005 Location: hertfordshire Posts: 375	ok xs engineering ... thanks again Madden been looking on here from my last post. They cover the compression seal or cylinder ring and slate another brand (not good business.. but any way) my problem (i think )is the rivet locations on both the above gaskets..i may just go standard Nissan gasket and oring the block.

20th July 2008, 06:02 PM	#8 (permalink)
Madden New Users Join Date: Nov 2004 Location: Berkshire Posts: 1,946	I know alot of peole run the cometics with no problems what so ever. So you should be fine.

20th July 2008, 06:47 PM	#9 (permalink)
gibson GTR Register Member Join Date: Feb 2005 Location: hertfordshire Posts: 375	Andy W i have checked that on the block .. the interesting thing is that when all bolted down the rivet makes an indent in the head surface suggesting that there is some compression on the rivet or am i just being OTT on this one.

20th July 2008, 07:41 PM	#10 (permalink)
HenrikE GTR Register Member Join Date: Mar 2006 Location: Sweden Posts: 73	I run a cometic and i noticed the rivet but then it's like Andy says and it works fine for me.

20th July 2008, 10:22 PM	#11 (permalink)
gibson GTR Register Member Join Date: Feb 2005 Location: hertfordshire Posts: 375	thanks for all replies

30th July 2008, 11:48 AM	#12 (permalink)
Chris Wilson GTR Register Member Join Date: Aug 2001 Location: Shropshire Posts: 1,393	Take the rivet out if it really bugs you, it's only their to stop the things separating in transit.

31st July 2008, 09:06 AM	#13 (permalink)
gibson GTR Register Member Join Date: Feb 2005 Location: hertfordshire Posts: 375	That was my conclusion also