Has anybody reused a cometic headgasket? If so, how many times can they be reused? I had my head ported and polished last Easter and the mechanic reused it. He said he always reuses them on Hondas, but obviously this is not a Honda motor. The only reason Im asking is because Im putting new rings in (godamn Total Seal rings)and I need to know if I should get another headgasket. I would love reuse it, its the best HG Ive ever used. Thanx
#75038, "RE: Cometic Headgaskets" In response to Reply # 0
i wouldnt just to be on the safe side.... i know itd be great to keep useing it... saves lots o $... but i know personally that'd id hate to get everything back together and that nasty milky oil again...(worst felling in the world) * been there done that
jake
AEM cam Gears,MSD ignition,Chikira 4-2-1 header,Custom 2.5" exhast,Pacsetter hiflo cat ,head p/p , intake p/p 2mm oversize tit valves , t/b p/p , shiftkit , TQ lockup mod , and much mor
#75098, "RE: Cometic Headgaskets" In response to Reply # 1
Well i have only used cometic HG on my harley but correct me if i am wrong....cometic HG are composite correct? I would never re-use one more than once......i really wouldnt re-use one at all. Besides if it fails you could do a lot of potential damage especially if you are turboed.
Terry
96 Eagle talon ESI Star Stage II - Boost/oil/EGT gauges
#75101, "RE: Cometic Headgaskets" In response to Reply # 2
Anything as cheap as a gasket that takes THAT much trouble to get to should NEVER be reused. A few dollars more for a new gasket can potentially save you hours of wrenching and days of downtime.
You are not your job. You're not how much money you have in the bank. You're not the car you drive. You're not the contents of your wallet. You're not your fu**ing post count.
#75330, "RE: Cometic Headgaskets" In response to Reply # 4
um sorry there sparkplug but copper has superior sealing capabilities..and last i checked copper sealing have been the superior used gasket for all high hp forced induction motors.....
Terry
96 Eagle talon ESI Star Stage II - Boost/oil/EGT gauges
#75331, "RE: Cometic Headgaskets" In response to Reply # 5
VERY TRU....... BUT WITH THE COPPER YOU HAVE TO HAVE QUITE A BIT OF MACHINE WORK DONE... IE: RINGING THE HEAD & BLOCK NOT TO MENTION TAKING .0040 OFF THE HEAD HE SAYING THAT THE MLS IS BEST FOR THE $...
#75332, "RE: Cometic Headgaskets" In response to Reply # 6
you do jnot have to ring the block....that is a misconception. tru your block must have a good surface but having it machined just because you have a copper gasket is not reqd unless your warped. I have installed copper gaskets in a friends GNX becaue he kept blowing the HG due to pressure...after the copper all was quiet and ass planting fun.
Yes i agree MLS is best for money but if i could get a copper without ordering it i would go that route. I hate to wait for ordered parts when i know i can just go buy it.....besides i get the MLs at resale cost.
Terry
96 Eagle talon ESI Star Stage II - Boost/oil/EGT gauges
#75333, "RE: Cometic Headgaskets" In response to Reply # 7
i'm using the srt-4 headgasket on my motor wouldnt that be better then the factory 2gnt sence the srt4 is factory turbo u would think it could hold some high boost. ^^Work in progress pic www.fastfabrications.com
#75546, "RE: Cometic Headgaskets" In response to Reply # 8
Originally posted by 2g99RSNC i'm using the srt-4 headgasket on my motor wouldnt that be better then the factory 2gnt sence the srt4 is factory turbo u would think it could hold some high boost. ^^Work in progress pic www.fastfabrications.com
The SRT-4 headgasket is the same construction as ours, and it has extra oil passages, etc. Buy the headgakset made for us.
#75547, "RE: Cometic Headgaskets" In response to Reply # 5
Originally posted by Star Turbo Talon um sorry there sparkplug but copper has superior sealing capabilities..and last i checked copper sealing have been the superior used gasket for all high hp forced induction motors..... Terry 96 Eagle talon ESI Star Stage II - Boost/oil/EGT gauges 97 Eclipse Greddy header/evo exhaust - Stage 2 6 puck Sprung hub MIBA clutch - Shortened shifter - Koni Yellows w/eibach prokit - Stillen Fr/Rr swaybars - ceramic intake - DEI Keyless entry alarm - Niche 17" Shoks Waiting to be installed: Apexi AFC, HKS EVC IV, ceramic intake, 450 Turbo injectors, SFMU/return line, GSX Front brakes (need rotors)
Copper is more durable, and has good heat properties. But I would not say better sealing capabilities. I tried a copper gasket and the coolant started boiling over once the car heated up. The head was straight and true. But the deck was not touched. The deck has still not been touched and seals fine with the MLS gasket. And the MLS is touch metal also, so it's not like comparing the copper gasket to a composite counterpart.
For a street application I wouldn't recommend anything but the MLS. The only advantage is you can get a gasket made to whatever thickness you want. I would never install one without having the engine out and everything machined, and definately use head studs.
Read the installation procedure and post installation tips from Gasketworks, a manufacturer of copper headgaskets. Even they talk about leaks and ways to stop them. http://headgasket.com/preinstall.html
#75548, "RE: Cometic Headgaskets" In response to Reply # 15
Originally posted by Michael_97RS
Originally posted by Star Turbo Talon um sorry there sparkplug but copper has superior sealing capabilities..and last i checked copper sealing have been the superior used gasket for all high hp forced induction motors..... Terry 96 Eagle talon ESI Star Stage II - Boost/oil/EGT gauges 97 Eclipse Greddy header/evo exhaust - Stage 2 6 puck Sprung hub MIBA clutch - Shortened shifter - Koni Yellows w/eibach prokit - Stillen Fr/Rr swaybars - ceramic intake - DEI Keyless entry alarm - Niche 17" Shoks Waiting to be installed: Apexi AFC, HKS EVC IV, ceramic intake, 450 Turbo injectors, SFMU/return line, GSX Front brakes (need rotors)
Copper is more durable, and has good heat properties. But I would not say better sealing capabilities. I tried a copper gasket and the coolant started boiling over once the car heated up. The head was straight and true. But the deck was not touched. The deck has still not been touched and seals fine with the MLS gasket. And the MLS is touch metal also, so it's not like comparing the copper gasket to a composite counterpart. For a street application I wouldn't recommend anything but the MLS. The only advantage is you can get a gasket made to whatever thickness you want. I would never install one without having the engine out and everything machined, and definately use head studs. Read the installation procedure and post installation tips from Gasketworks, a manufacturer of copper headgaskets. Even they talk about leaks and ways to stop them. http://headgasket.com/preinstall.html Exile Racing Technologies: http://www.exileracing.com una salus victus
good info thanks...will save the link for future.
Terry
96 Eagle talon ESI Star Stage II - Boost/oil/EGT gauges
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