Cometic Head Gaskets--Who has had problems with them
22-07-2004, 06:53 PM
#43
Chasing Radders
Thread Starter
Originally Posted by sunny
Very sad to hear this mate. 
How long was you running the gasket for and what other damage has resulted from the gasket fault?
Bests - Sunny.
How long was you running the gasket for and what other damage has resulted from the gasket fault?
Bests - Sunny.
The car wasnt even fired up
Water was coming from the side of the gasket as it was made with an imperfection in it. Therefore damaging the head and block.
22-07-2004, 06:59 PM
#48
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I'm guessing that a part of it was not level therefore when it was tightened down it put pressure on the head and block, therefore leaving indents on the head and block ?
Tiff am I right ?
Tiff am I right ?
22-07-2004, 06:59 PM
#50
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Originally Posted by TIFF-C20WTH
Sunny
When the head was torqued down onto the gasket and the block, the imperfection caused it to damaged the 2 surfaces
When the head was torqued down onto the gasket and the block, the imperfection caused it to damaged the 2 surfaces
22-07-2004, 07:01 PM
#51
Chasing Radders
Thread Starter
Originally Posted by Deano
Originally Posted by TIFF-C20WTH
Sunny
When the head was torqued down onto the gasket and the block, the imperfection caused it to damaged the 2 surfaces
When the head was torqued down onto the gasket and the block, the imperfection caused it to damaged the 2 surfaces
It is all in hand mate
But my argument is, who is paying for the un-nessesery damage that was caused by the faulty gasket?
22-07-2004, 07:03 PM
#52
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was it the firing rings which are separate had not located properly in the layered bit and fooked it??
i was looking at mine and it looks quite possible
cheers
Daniel
i was looking at mine and it looks quite possible
cheers
Daniel
22-07-2004, 07:27 PM
#57
if you dont , then your car will be off the road for the next millenium whilst the courts sort it , the , if you do pay for it to be repaired they fook you off for the payment cause youve allready had it repaired - either way - your fooked - but good luck 
22-07-2004, 09:36 PM
#62
Chasing Radders
Thread Starter
All sorted now
New head gasket on and all is fine.................................just the fucking injector problem now
BIG BIG BIG thanks to Karl for everythink he has done today, Those who know what has happened will understand
Karl, Thanks Bud
New head gasket on and all is fine.................................just the fucking injector problem now
BIG BIG BIG thanks to Karl for everythink he has done today, Those who know what has happened will understand
Karl, Thanks Bud
22-07-2004, 10:26 PM
#68
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Tiff...unfortunately the injectors from Bosch are NOT meant for the application used!!!!!.....If for example a Dark green failed that would be as far as Bosch are concerned on a Porsche 944 Turbo...now that would NOT damage a std motor....These are modified cars and NO garantee applies except for the part itself.
Sorry,welcome to the world of tuning If you have issues keep the car standard...sorry.
Sorry,welcome to the world of tuning
If you have issues keep the car standard...sorry.
23-07-2004, 01:44 AM
#70
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Originally Posted by Ima-Racing500
Tiff...unfortunately the injectors from Bosch are NOT meant for the application used!!!!!.....If for example a Dark green failed that would be as far as Bosch are concerned on a Porsche 944 Turbo...now that would NOT damage a std motor....These are modified cars and NO garantee applies except for the part itself.
Sorry,welcome to the world of tuning If you have issues keep the car standard...sorry.
Sorry,welcome to the world of tuning
If you have issues keep the car standard...sorry.
23-07-2004, 09:29 PM
#71
Norris Motorsport
Just to give a quick run down on the problems found so that anyone using a cometic gasket in future can double check this!
After I had rebuilt the engine using a cometic gasket the first thing I did was refill the coolant system. After I had filled it I noticed water leaking down the block. Upon inspection its was coming from the side of the head gasket.
Thus I stripped the engine again and indentations were found in the head face and block. Upon examining the gasket it was found that the seperate fire rings that sit in the middle of the 3 layers were slightly larger in diameter than the cut out in the middle layer!!!! This was causing the fire ring to sit slightly proud and thus hold the head up enough to leak. However it damaged the head and block in the process.
It's not an easy fault to spot and I didnt before fitting it even though I visually checked the gasket over. The three layers are quite loose and thus I doubt I would spot the fault again until the head is torqued down!! Unless you actually pull the outer layers apart to view the centre layer and fire rings its almost impossible to detect! (And its not a good thing to start pulling the steel layers apart with a new gasket!!)
Thus everyone BEWARE!!!!
As a summary I pulled the engine out machined both the block and head faces and rebuilt with a genuine Mountune gasket! Its now 100% perfect again no thanks to Cometic!!
Hope this small bit of info may save someone elses engine, allthough it does seem to be a rare fault!!
After I had rebuilt the engine using a cometic gasket the first thing I did was refill the coolant system. After I had filled it I noticed water leaking down the block. Upon inspection its was coming from the side of the head gasket.
Thus I stripped the engine again and indentations were found in the head face and block. Upon examining the gasket it was found that the seperate fire rings that sit in the middle of the 3 layers were slightly larger in diameter than the cut out in the middle layer!!!! This was causing the fire ring to sit slightly proud and thus hold the head up enough to leak. However it damaged the head and block in the process.
It's not an easy fault to spot and I didnt before fitting it even though I visually checked the gasket over. The three layers are quite loose and thus I doubt I would spot the fault again until the head is torqued down!! Unless you actually pull the outer layers apart to view the centre layer and fire rings its almost impossible to detect! (And its not a good thing to start pulling the steel layers apart with a new gasket!!)
Thus everyone BEWARE!!!!
As a summary I pulled the engine out machined both the block and head faces and rebuilt with a genuine Mountune gasket! Its now 100% perfect again no thanks to Cometic!!
Hope this small bit of info may save someone elses engine, allthough it does seem to be a rare fault!!
23-07-2004, 10:26 PM
#73
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Wil...no modified parts are warrantied..except the part itself.....UNLESS its a std engine!
I bought a cam belt kit for my Transit from FORD and they warrantied it for 60000 miles!!!So if it snaps they will fix the engine
...To avoid any complications re fitting..i got them to do it!!!Cause thats the only way a warranty will work..LOL.
Karl..i'd say you made a mistake!!!!!I know i was paranoid i would get the line up wrong on the Cometic..and i could see you could easily not line it up perfect!!!!!!But hey blame the gasket..LOL...NO DISRESPECT..but even genius's can fook up.
I bought a cam belt kit for my Transit from FORD and they warrantied it for 60000 miles!!!So if it snaps they will fix the engine
...To avoid any complications re fitting..i got them to do it!!!Cause thats the only way a warranty will work..LOL.Karl..i'd say you made a mistake!!!!!I know i was paranoid i would get the line up wrong on the Cometic..and i could see you could easily not line it up perfect!!!!!!But hey blame the gasket..LOL...NO DISRESPECT..but even genius's can fook up.
24-07-2004, 10:57 AM
#76
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i have had the thicker cometic in for two years now running 32 peak pounds of boost and it has been fine
i think you must have had a rogue gasket tiff
i think you must have had a rogue gasket tiff
24-07-2004, 11:21 AM
#77
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I know of someone who had race logic traction controll on his RX-7. apprantly the system in some way caused the engine to blow.....due to stoping fuel or something (I dont kznow the details) . Anyway, AFAIKR racelogic footed the bill for the rebuild....
24-07-2004, 03:39 PM
#78
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Cometic gasket came from us,regardless of what Cometic say we will discount your next purchase or reimburse you either way!Give me a ring on Monday to sort out.Buy Karl a beer as he was at our door sharpish after the phone call!-regards PJ.
24-07-2004, 09:31 PM
#80
Chasing Radders
Thread Starter
Originally Posted by PJ MOTORSPORT
Cometic gasket came from us,regardless of what Cometic say we will discount your next purchase or reimburse you either way!Give me a ring on Monday to sort out.Buy Karl a beer as he was at our door sharpish after the phone call!-regards PJ.
Cheers mate, i will ring you Monday
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