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Rasta Monsta
Joined: 12 Jul 2006 Posts: 11723 Location: PacNW
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Posted: Sat Jan 31, 2009 2:45 pm Post subject: |
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Sure, "these pieces are in fact reusable."
Don't make it true, tho.
Confused with the Dan's Official 924 Board ARP Rod Bolt Thread©? _________________ Toofah King Bad
- WeiBe (1987 924S 2.5t) - 931 S3
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ideola
Joined: 01 Oct 2004 Posts: 15548 Location: Spring Lake MI
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Posted: Sun Feb 01, 2009 12:05 am Post subject: |
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I'm fairly certain the stock thickness is .050" or .051", somewhere in that range...haven't had a chance to dig up the documentation on it yet, but that's what I recall, and I know for a fact that the composite HG I had made up by Lubbock was .050"
I'll get an opinion from Cometic on reusability, and then you can each make your own choices.
Gegge, I'll ask about pricing on the 5-layer, but in light of the above, let me know for sure if it's necessary or if 3-layer will suffice.
I'll get around to updating the totals a little later today... _________________ erstwhile owner of just about every 924 variant ever made |
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ideola
Joined: 01 Oct 2004 Posts: 15548 Location: Spring Lake MI
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Posted: Sun Feb 01, 2009 8:47 am Post subject: |
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LIST OF PARTICIPANTS
updated...- ideola: re-confirmed for 5 pieces
- peterld: re-confirmed for 4 pieces
- Fifty50Plus: re-confirmed for 5 pieces
- tomcooper: re-confirmed for 2 pieces
- pocketscience: re-confirmed for 1 piece
- elitejaso: re-confirmed for 2 pieces
- gegge: re-confirmed for 2 pieces
- huckster: confirmed for 2 pieces
- fiat22turbo: re-confirmed for 1 piece
- Scorpio: re-confirmed interest in 1 piece
- Raceboy: confirmed interest in 2 pieces
- 924guy: re-confirmed interest in 2 pieces
- anonymous user #1: confirmed for 1 piece
- CrashTest: re-confirmed for 1 piece
- Raceboy: waiting to confirm interest in 4 add'l pieces
- bass gt: original interest in 10 pieces
- morghen: original interest in 2 pieces
bass gt has re-confirmed interest, but still waiting on an exact count. That brings us to 31 confirmed, 14 in process, for a grand total of 45. We need 5 more commits, perhaps more depending on what happens with bass gt and Raceboy. _________________ erstwhile owner of just about every 924 variant ever made |
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ideola
Joined: 01 Oct 2004 Posts: 15548 Location: Spring Lake MI
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Posted: Tue Feb 03, 2009 1:33 am Post subject: |
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For anyone interested in a 5-layer gasket, add $20 to the 3-layer price. Gegge, get back to me and let me know if you want 1 add'l 3-layer, or if you really need a 5-layer at .086". I am reasonably confident that the stock specs are .050", although I was unsuccessful this weekend at trying to confirm that in a documented source.
Regarding re-usability, here is the answer direct from the source:
Quote: | “NO” we do not recommend reusing our MLS gaskets!
When the embossment is originally torqued the gasket is compressed flat giving it the max sealing capabilities. After heat cycles it will not maintain the same sealing strength after that torque is released. |
_________________ erstwhile owner of just about every 924 variant ever made |
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Rich H
Joined: 10 Jun 2007 Posts: 2665 Location: Preston, Lancs, UK
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Posted: Tue Feb 03, 2009 3:06 am Post subject: |
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I take it that this is for the head gasket only?
Not valve stem seals and so on? _________________ 1994 Lotus Esprit S4 - Work in progress...
1980 Porsche 924 S2 DITC Turbo - Original spec
1978 Homo-Sapiens - Tired spec
1953 Landrover S1 - Pensioner Spec |
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ideola
Joined: 01 Oct 2004 Posts: 15548 Location: Spring Lake MI
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Posted: Tue Feb 03, 2009 3:17 am Post subject: |
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That is correct, this is for the GASKET ONLY, NOT the entire head seal kit. _________________ erstwhile owner of just about every 924 variant ever made |
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RC
Joined: 25 Mar 2007 Posts: 2636 Location: Australia
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Posted: Tue Feb 03, 2009 7:59 am Post subject: |
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I assume that the gasket thickness refers to the compressed measurement, the effective thickness after the head has been torqued to spec.
Measuring 2 used gaskets, unknown brand possibly original and an OEM Goetse gives a compressed thickness of 1.6 and 1.7mm respectively. Additionally I have recorded the figure of 1.6mm used to calculate CR. IIRC that gasket was OEM Elring.
Maybe others can also measure theirs to confirm.
If you`re not positive that Cometic`s dimension is the installed compressed one, now would be a good time to verify. |
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Rasta Monsta
Joined: 12 Jul 2006 Posts: 11723 Location: PacNW
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Posted: Tue Feb 03, 2009 8:04 am Post subject: |
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A quick trip around the Internets revealed a number of sources saying the MLS gasket can be reused (or, uncompressed and re-torqued) 4 to 5 times.
Busted again for smart-assery. Will I ever learn?
Guess not. _________________ Toofah King Bad
- WeiBe (1987 924S 2.5t) - 931 S3
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Tiny
Joined: 10 Apr 2006 Posts: 502 Location: London, UK
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Posted: Tue Feb 03, 2009 8:22 am Post subject: |
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Hey Dan,
Please put me down for 1.
Thanks for all your work so far man. Ace!
Tiny
_________________ *****1981 - 924 - Auto - London, UK****** |
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ideola
Joined: 01 Oct 2004 Posts: 15548 Location: Spring Lake MI
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Posted: Tue Feb 03, 2009 8:48 am Post subject: |
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I've sent a clarifying question regarding the thickness and will post back when I receive an answer.
As of right now, the trip to Cleveland is still on for tomorrow to drop off the block, heads, and stock gasket.
LIST OF PARTICIPANTS
updated...- ideola: re-confirmed for 5 pieces
- peterld: re-confirmed for 4 pieces
- Fifty50Plus: re-confirmed for 5 pieces
- tomcooper: re-confirmed for 2 pieces
- pocketscience: re-confirmed for 1 piece
- elitejaso: re-confirmed for 2 pieces
- gegge: re-confirmed for 2 pieces
- huckster: confirmed for 2 pieces
- fiat22turbo: re-confirmed for 1 piece
- Scorpio: re-confirmed interest in 1 piece
- Raceboy: confirmed interest in 2 pieces
- 924guy: re-confirmed interest in 2 pieces
- Tiny: confirmed interest in 1 piece
- anonymous user #1: confirmed for 1 piece
- CrashTest: re-confirmed for 1 piece
- Raceboy: waiting to confirm interest in 4 add'l pieces
- bass gt: original interest in 10 pieces
Still awaiting re-confirms from bass-gt and Raceboy, and working on trying to get a few others into the fray. In the meantime, we are now up to 32 confirmed, 14 in process, for a grand total of 46. We need 4 more commits... _________________ erstwhile owner of just about every 924 variant ever made |
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emoore924
Joined: 13 Apr 2004 Posts: 2815
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Posted: Tue Feb 03, 2009 12:47 pm Post subject: |
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IDK if this helps or hurts but I just mic'd a used fel-pro I have that's been hanging around and it measured .059" or therabouts for the areas that had been compressed. |
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Shurick
Joined: 15 May 2005 Posts: 524 Location: Russia, Moscow.
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Posted: Tue Feb 03, 2009 5:30 pm Post subject: |
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I'm interested in a couple of them. I'll consult with my mechanic for the thickness I need.
If I'll find someone interested in a cometic HG here in a day or two, I'll increase the quantity of pieces in my order. _________________ WBR, Shurick
'79 931 -- intercooled K26-3060-6.10 turbo @ 1.2 bar, EFI+EDIS, 951S brakes, stripped interior, 951 look.
'86 924S -- R.I.P.
https://www.instagram.com/ru_pacecar/ |
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ideola
Joined: 01 Oct 2004 Posts: 15548 Location: Spring Lake MI
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Posted: Tue Feb 03, 2009 8:51 pm Post subject: |
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LIST OF PARTICIPANTS
updated...- ideola: re-confirmed for 5 pieces
- peterld: re-confirmed for 4 pieces
- Fifty50Plus: re-confirmed for 5 pieces
- tomcooper: re-confirmed for 2 pieces
- pocketscience: re-confirmed for 1 piece
- elitejaso: re-confirmed for 2 pieces
- gegge: re-confirmed for 2 pieces
- huckster: confirmed for 2 pieces
- fiat22turbo: re-confirmed for 1 piece
- Scorpio: re-confirmed interest in 1 piece
- Raceboy: confirmed interest in 2 pieces
- Shurick: confirmed interest in 2 pieces
- 924guy: re-confirmed interest in 2 pieces
- Tiny: confirmed interest in 1 piece
- anonymous user #1: confirmed for 1 piece
- CrashTest: re-confirmed for 1 piece
- Raceboy: waiting to confirm interest in 4 add'l pieces
- bass gt: original interest in 10 pieces
34 confirmed, 14 in process, for a grand total of 48. 2 to go and a couple of re-confirms![/quote] _________________ erstwhile owner of just about every 924 variant ever made |
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elitejaso
Joined: 24 Jul 2007 Posts: 138 Location: Melbourne
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Posted: Tue Feb 03, 2009 9:17 pm Post subject: |
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Nice work dan, nearlly there.
Let us know when you want the money, hopefully soon before i blow it all _________________ 1981 924 turbo (daily driver) |
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morghen
Joined: 21 Jan 2005 Posts: 8868 Location: Romania
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Posted: Tue Feb 03, 2009 9:45 pm Post subject: |
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i'll take one..for now.
I'll let you know the thickness that i need. _________________ https://www.the924.com |
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