Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Go Back   Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum > General > Tech Talk

Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars


Reply
 
Thread Tools Display Modes
Old 05-15-2012, 10:34 AM   #1
BlueMissle sx
 
Join Date: Mar 2012
Location: Gilbert Arizona
Age: 31
Posts: 24
Trader Rating: (0)
BlueMissle sx is an unknown quantity at this point
Feedback Score: 0 reviews
Cosmetic HeadGasket

Ok so a friend told me these gaskets didn't seal very well.
has anyone ever used one and what were the results leme know please
thanks
BlueMissle sx is offline   Reply With Quote
Sponsored Links
Old 05-15-2012, 10:46 AM   #2
s14k
Leaky Injector
 
Join Date: Sep 2011
Location: summerville
Age: 42
Posts: 119
Trader Rating: (1)
s14k is an unknown quantity at this point
Feedback Score: 1 reviews
I use them on every build i do never had a problem yet.
s14k is offline   Reply With Quote
Old 05-15-2012, 10:47 AM   #3
BlueMissle sx
 
Join Date: Mar 2012
Location: Gilbert Arizona
Age: 31
Posts: 24
Trader Rating: (0)
BlueMissle sx is an unknown quantity at this point
Feedback Score: 0 reviews
Quote:
Originally Posted by s14k View Post
I use them on every build i do never had a problem yet.
Nice were the head and block decked?
just curious
BlueMissle sx is offline   Reply With Quote
Old 05-15-2012, 11:27 AM   #4
GroundPerformance
Zilvia FREAK!
 
GroundPerformance's Avatar
 
Join Date: Oct 2008
Location: Socal
Posts: 1,479
Trader Rating: (44)
GroundPerformance is an unknown quantity at this point
Feedback Score: 44 reviews
Quote:
Originally Posted by BlueMissle sx View Post
Nice were the head and block decked?
just curious

Thats actually the requirement if you want it to seal properly.
__________________

SoCal KA24DET/KA24ET Owners
<< Join the FB Group >>
GroundPerformance is offline   Reply With Quote
Old 05-15-2012, 11:48 AM   #5
wangan_cruiser
kouki man
 
wangan_cruiser's Avatar
 
Join Date: Apr 2006
Location: downtown oakland,ca
Age: 40
Posts: 3,539
Trader Rating: (36)
wangan_cruiser is close to perfectionwangan_cruiser is close to perfectionwangan_cruiser is close to perfectionwangan_cruiser is close to perfectionwangan_cruiser is close to perfectionwangan_cruiser is close to perfectionwangan_cruiser is close to perfectionwangan_cruiser is close to perfectionwangan_cruiser is close to perfectionwangan_cruiser is close to perfectionwangan_cruiser is close to perfection
Feedback Score: 36 reviews
Send a message via AIM to wangan_cruiser
Quote:
Originally Posted by GroundPerformance View Post
Thats actually the requirement if you want it to seal properly.

like he said. metal headgasket wont forgive any perfections from the surface. it is adviceable to get the surface milled have a flat surface. if you want it to seal properly you can try to use a copper spray gasket maker and decked it.
wangan_cruiser is offline   Reply With Quote
Old 05-15-2012, 12:07 PM   #6
Matej
Post Whore!
 
Join Date: Feb 2007
Location: N/A
Posts: 9,423
Trader Rating: (39)
Matej is close to perfectionMatej is close to perfectionMatej is close to perfectionMatej is close to perfectionMatej is close to perfectionMatej is close to perfectionMatej is close to perfectionMatej is close to perfectionMatej is close to perfectionMatej is close to perfectionMatej is close to perfection
Feedback Score: 39 reviews
It is for cosmetic purposes only.
Matej is offline   Reply With Quote
Old 05-15-2012, 12:24 PM   #7
DrIvEsldEwAyS
Zilvia Junkie
 
Join Date: Apr 2005
Location: Columbia,SC
Age: 36
Posts: 351
Trader Rating: (0)
DrIvEsldEwAyS is an unknown quantity at this point
Feedback Score: 0 reviews
never had a problem with the 2 ive used.
__________________
-1990 240sx hatch sr20det- gt35r, blah blah blah
DrIvEsldEwAyS is offline   Reply With Quote
Old 05-16-2012, 09:22 AM   #8
BlueMissle sx
 
Join Date: Mar 2012
Location: Gilbert Arizona
Age: 31
Posts: 24
Trader Rating: (0)
BlueMissle sx is an unknown quantity at this point
Feedback Score: 0 reviews
Alright thanks guys im gonna check the surface of the head and block..
Not wanting to pull the block just to resurface it, how well does this copper spray seal?
I had a metal head gasket on before replacing because i read shit numbers on compression test.. cyl#1 30.. the other 3 150 just gonna switch gaskets and see if it fixes my problem
BlueMissle sx is offline   Reply With Quote
Old 05-16-2012, 09:48 AM   #9
R@ddy
Nissanaholic!
 
Join Date: Jul 2008
Location: SoCal
Age: 35
Posts: 1,632
Trader Rating: (32)
R@ddy is not welcome here anymoreR@ddy is not welcome here anymoreR@ddy is not welcome here anymoreR@ddy is not welcome here anymoreR@ddy is not welcome here anymoreR@ddy is not welcome here anymoreR@ddy is not welcome here anymoreR@ddy is not welcome here anymoreR@ddy is not welcome here anymoreR@ddy is not welcome here anymore
Feedback Score: 32 reviews
I've had 2 cosworths..never resurfaced block, just the head. No problems. (Using copper spray) I actully reused one in my motor and later ended up making 400whp..of course I don't own the car anymore so don't know how the motor is doing.
R@ddy is offline   Reply With Quote
Old 05-16-2012, 09:52 AM   #10
BlueMissle sx
 
Join Date: Mar 2012
Location: Gilbert Arizona
Age: 31
Posts: 24
Trader Rating: (0)
BlueMissle sx is an unknown quantity at this point
Feedback Score: 0 reviews
Quote:
Originally Posted by s13_kidd View Post
I've had 2 cosworths..never resurfaced block, just the head. No problems. (Using copper spray) I actully reused one in my motor and later ended up making 400whp..of course I don't own the car anymore so don't know how the motor is doing.
Nice Ive herd good things about cosmetic.. of course after i order a cosmetic..
do you know any difference in the two gaskets like what would make one better than the other
BlueMissle sx is offline   Reply With Quote
Old 05-16-2012, 09:54 AM   #11
Vadim's13
Zilvia Member
 
Vadim's13's Avatar
 
Join Date: Feb 2011
Location: Ca
Posts: 170
Trader Rating: (2)
Vadim's13 is an unknown quantity at this point
Feedback Score: 2 reviews
Haha coSmetic
BTW I don't really care what others may say but u HAVE TO deck ur head if u had any problems with HG...
Vadim's13 is offline   Reply With Quote
Old 05-16-2012, 10:08 AM   #12
jumpman2334
Zilvia FREAK!
 
jumpman2334's Avatar
 
Join Date: Jan 2010
Location: SHOW ME WHAT YOU GOT
Posts: 1,115
Trader Rating: (1)
jumpman2334 has much to be proud ofjumpman2334 has much to be proud ofjumpman2334 has much to be proud ofjumpman2334 has much to be proud ofjumpman2334 has much to be proud ofjumpman2334 has much to be proud ofjumpman2334 has much to be proud ofjumpman2334 has much to be proud ofjumpman2334 has much to be proud ofjumpman2334 has much to be proud ofjumpman2334 has much to be proud of
Feedback Score: 1 reviews
isnt it Cometic Gaskets? No 'S'?
jumpman2334 is offline   Reply With Quote
Old 05-16-2012, 10:33 AM   #13
BlueMissle sx
 
Join Date: Mar 2012
Location: Gilbert Arizona
Age: 31
Posts: 24
Trader Rating: (0)
BlueMissle sx is an unknown quantity at this point
Feedback Score: 0 reviews
Ya there's no s and tits ill prolly get that done
BlueMissle sx is offline   Reply With Quote
Old 05-16-2012, 06:58 PM   #14
fliprayzin240sx
Man w/ CTSV & a Car Seat
 
fliprayzin240sx's Avatar
 
Join Date: Aug 2002
Location: Tampa
Posts: 17,998
Trader Rating: (19)
fliprayzin240sx is close to perfectionfliprayzin240sx is close to perfectionfliprayzin240sx is close to perfectionfliprayzin240sx is close to perfectionfliprayzin240sx is close to perfectionfliprayzin240sx is close to perfectionfliprayzin240sx is close to perfectionfliprayzin240sx is close to perfectionfliprayzin240sx is close to perfectionfliprayzin240sx is close to perfectionfliprayzin240sx is close to perfection
Feedback Score: 19 reviews
Send a message via AIM to fliprayzin240sx
Quote:
Originally Posted by BlueMissle sx View Post
Alright thanks guys im gonna check the surface of the head and block..
Not wanting to pull the block just to resurface it, how well does this copper spray seal?
I had a metal head gasket on before replacing because i read shit numbers on compression test.. cyl#1 30.. the other 3 150 just gonna switch gaskets and see if it fixes my problem
How sure are you that its a blown HG and not blown piston ring?
__________________

If you think Zilvia has too many assholes...
CLICK HERE!!!
fliprayzin240sx is offline   Reply With Quote
Old 05-16-2012, 07:22 PM   #15
brndck
Premium Member
 
brndck's Avatar
 
Join Date: Jun 2003
Location: torrance, ca
Age: 43
Posts: 12,686
Trader Rating: (130)
brndck is close to perfectionbrndck is close to perfectionbrndck is close to perfectionbrndck is close to perfectionbrndck is close to perfectionbrndck is close to perfectionbrndck is close to perfectionbrndck is close to perfectionbrndck is close to perfectionbrndck is close to perfectionbrndck is close to perfection
Feedback Score: 130 reviews
Send a message via AIM to brndck
Quote:
Originally Posted by BlueMissle sx View Post
Alright thanks guys im gonna check the surface of the head and block..
Not wanting to pull the block just to resurface it, how well does this copper spray seal?
I had a metal head gasket on before replacing because i read shit numbers on compression test.. cyl#1 30.. the other 3 150 just gonna switch gaskets and see if it fixes my problem
if you have low compression you should have done both a block test and a leakdown test before assuming that its a bad head gasket. you could have burned valve seats or failing piston ring seals causing your poor compression.
__________________

http://outslidersandsmokeproduce.blogspot.com/
Quote:
Originally Posted by Mannykiller View Post
it'll fit JANK.. and no one likes Jank except Broke ass zilvians.
brndck is offline   Reply With Quote
Old 05-16-2012, 07:42 PM   #16
Turbo Nismo
Zilvia Addict
 
Turbo Nismo's Avatar
 
Join Date: Oct 2009
Location: Puerto Rico
Posts: 731
Trader Rating: (18)
Turbo Nismo is an unknown quantity at this point
Feedback Score: 18 reviews
To be honest, I've had two cometic head gaskets and both of them were blewn on my KA, but I can't blame them because I never resurfaced the block and I think it also had to do with the tune(timing). Know I resurfaced both and did firerings to the block also. I'm gonna try it for the last time with the cometic if I have problems again then f** it lol. As soon as I finish with my rebuild and retune I'll let you guys know.
__________________
IG: chris___s14
Turbo Nismo is offline   Reply With Quote
Old 05-16-2012, 09:24 PM   #17
mewantkouki
Zilvia FREAK!
 
Join Date: Nov 2007
Location: Orlando, Fl
Age: 38
Posts: 1,250
Trader Rating: (36)
mewantkouki will become famous soon enoughmewantkouki will become famous soon enoughmewantkouki will become famous soon enough
Feedback Score: 36 reviews
Why are people still buying shitty cometic head gaskets for ka's when cosworth makes mls gaskets for them now..?
mewantkouki is offline   Reply With Quote
Old 05-16-2012, 10:35 PM   #18
Turbo Nismo
Zilvia Addict
 
Turbo Nismo's Avatar
 
Join Date: Oct 2009
Location: Puerto Rico
Posts: 731
Trader Rating: (18)
Turbo Nismo is an unknown quantity at this point
Feedback Score: 18 reviews
I've never tried them. If my cometic fails again I'll try it.
__________________
IG: chris___s14
Turbo Nismo is offline   Reply With Quote
Old 05-17-2012, 02:59 AM   #19
brndck
Premium Member
 
brndck's Avatar
 
Join Date: Jun 2003
Location: torrance, ca
Age: 43
Posts: 12,686
Trader Rating: (130)
brndck is close to perfectionbrndck is close to perfectionbrndck is close to perfectionbrndck is close to perfectionbrndck is close to perfectionbrndck is close to perfectionbrndck is close to perfectionbrndck is close to perfectionbrndck is close to perfectionbrndck is close to perfectionbrndck is close to perfection
Feedback Score: 130 reviews
Send a message via AIM to brndck
Quote:
Originally Posted by Turbo Nismo View Post
I've never tried them. If my cometic fails again I'll try it.
Quote:
Originally Posted by Turbo Nismo View Post
To be honest, I've had two cometic head gaskets and both of them were blewn on my KA, but I can't blame them because I never resurfaced the block and I think it also had to do with the tune(timing). Know I resurfaced both and did firerings to the block also. I'm gonna try it for the last time with the cometic if I have problems again then f** it lol. As soon as I finish with my rebuild and retune I'll let you guys know.
Wow you went through all that work and had a cometic fail and then used cometic again???
__________________

http://outslidersandsmokeproduce.blogspot.com/
Quote:
Originally Posted by Mannykiller View Post
it'll fit JANK.. and no one likes Jank except Broke ass zilvians.
brndck is offline   Reply With Quote
Old 05-17-2012, 06:24 AM   #20
Turbo Nismo
Zilvia Addict
 
Turbo Nismo's Avatar
 
Join Date: Oct 2009
Location: Puerto Rico
Posts: 731
Trader Rating: (18)
Turbo Nismo is an unknown quantity at this point
Feedback Score: 18 reviews
Because before the first time it happened the car overheated in the break in, but then the car was good and I dynoed it with 33 passes and did 404hp, after that the car was still perfect. Then when I tried in the street draging with two cars from 1st to 4rth gear it blew it. So I though it was by cause of it because after it when I was rebuilding it the head was very bad, so I resurfaced it, but I didn't resurface the block. I finish rebuilding, I break in it, then at dyno when the tuner is working with the timing in one pass it blew it again when reaching 368hp. When I was rebuilding it I noticed that the first pinston had the compresion rings sticked inside it and the rod was purple at the top and the piston had shrunk a lil bit. Non of my friends ever had problems with cometics and they always use them. One of them has a KA-T with 550hp and the other one has an SR with 600hp, and everyone else has high hp also and still no issues.
__________________
IG: chris___s14
Turbo Nismo is offline   Reply With Quote
Reply

Bookmarks



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 08:47 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
vB.Sponsors
Copyright ? 1998 - 2022, Zilvia.net