Valve seals or turbo seals? White smoke & oil burn smell
#32
Evolved Member
iTrader: (4)
Shut up. Go away.
Do not listen to Fred, he doesn't know what he's talking about.
Turbo's don't have "seals". They have gas rings that work on differential pressure. The only way they really get damaged is bearing failure (you would notice the comp wheel touching the housing), or over speeding the turbo, by a lot. Which would also likely result in bearing failure. Currently, crank case pressure is too high. You need to rectify this. Depending on what intake you had before, theire could have been more vacuum in the intake pipe vs the better flowing ETS intake.
Do not listen to Fred, he doesn't know what he's talking about.
Turbo's don't have "seals". They have gas rings that work on differential pressure. The only way they really get damaged is bearing failure (you would notice the comp wheel touching the housing), or over speeding the turbo, by a lot. Which would also likely result in bearing failure. Currently, crank case pressure is too high. You need to rectify this. Depending on what intake you had before, theire could have been more vacuum in the intake pipe vs the better flowing ETS intake.
Every F****** time with this guy
#36
thanks for the help guys. bought new headgasket, and going to go ahead and do gsc valve springs & retainers along with their upgrade valve seals. Taking it to get fixed next Thursday.
When ordering these springs I notice there are 2 diff part # kits for the Evo. There is gsc5040 which says 1.59"=85lbs or the gsc 5041 which says 1.54"=97lbs. What are the differences? I have kelford 272s if that matters. Just not sure which to go with
When ordering these springs I notice there are 2 diff part # kits for the Evo. There is gsc5040 which says 1.59"=85lbs or the gsc 5041 which says 1.54"=97lbs. What are the differences? I have kelford 272s if that matters. Just not sure which to go with
#37
Evolved Member
iTrader: (4)
thanks for the help guys. bought new headgasket, and going to go ahead and do gsc valve springs & retainers along with their upgrade valve seals. Taking it to get fixed next Thursday.
When ordering these springs I notice there are 2 diff part # kits for the Evo. There is gsc5040 which says 1.59"=85lbs or the gsc 5041 which says 1.54"=97lbs. What are the differences? I have kelford 272s if that matters. Just not sure which to go with
When ordering these springs I notice there are 2 diff part # kits for the Evo. There is gsc5040 which says 1.59"=85lbs or the gsc 5041 which says 1.54"=97lbs. What are the differences? I have kelford 272s if that matters. Just not sure which to go with
5041 is just retainers it says use with stock springs.
get 5040
#38
I think that's wrong. The 5040 kit says max rpm 8500 and max boost 30psi. The 5041 says max rpm 11,000 and max boost 44psi. Well I'm only running 28psi on an fp Red currently but eventually I want to go bigger turbo and more boost. So I guess I should get the 5041 kit. They're both the same price.
#39
Evolved Member
iTrader: (4)
I think that's wrong. The 5040 kit says max rpm 8500 and max boost 30psi. The 5041 says max rpm 11,000 and max boost 44psi. Well I'm only running 28psi on an fp Red currently but eventually I want to go bigger turbo and more boost. So I guess I should get the 5041 kit. They're both the same price.
https://www.evolutionm.net/forums/ev...ifference.html
I just checked and im running the 5041 with GSC S2, 28psi on e85 with 8500 Redline
#40
EvoM Community Team Leader
iTrader: (60)
For reference: I run GSC springs with stock retainers. I rev to 8k if need be (rare occasion; turbo quits at 7500ish) on s1 cams. Not a single problem at 28-30psi. If any of that helps you choose. You are good either way. I kept the stock retainers because I don't need to rev high plus they last foreeeeeeeeeever.
Your application may vary, of course.
Your application may vary, of course.
#41
Evolving Member
iTrader: (4)
My experience has been, in general, not with this platform in particular, that the seals go bad because the guides are worn. Make sure to check those when it's all apart. New stem seals will seem like they've fixed the issue... until they get worn through from the bad guides.
Perhaps someone will chime in with more platform specific knowledge on evo valve guides.
Perhaps someone will chime in with more platform specific knowledge on evo valve guides.
#42
EvoM Guru
iTrader: (1)
In for the thread when it's still smoking after you do valve seals. Mostly because when I installed my red, and it smoked, I thought it was valve stem seals too. And then after I spent a whole day replacing those and it not fixing the issue...
For valve springs, the GSC 5040 will be fine with the Kelford 272's (they're similar to GSC S2), and an 8k rpm rev limit.
Also worth noting, there is no need to pull the head to do valve seals.
For valve springs, the GSC 5040 will be fine with the Kelford 272's (they're similar to GSC S2), and an 8k rpm rev limit.
Also worth noting, there is no need to pull the head to do valve seals.
#43
In for the thread when it's still smoking after you do valve seals. Mostly because when I installed my red, and it smoked, I thought it was valve stem seals too. And then after I spent a whole day replacing those and it not fixing the issue...
For valve springs, the GSC 5040 will be fine with the Kelford 272's (they're similar to GSC S2), and an 8k rpm rev limit.
Also worth noting, there is no need to pull the head to do valve seals.
For valve springs, the GSC 5040 will be fine with the Kelford 272's (they're similar to GSC S2), and an 8k rpm rev limit.
Also worth noting, there is no need to pull the head to do valve seals.
#44
Evolved Member
[QUOTE=letsgetthisdone;11741117]In for the thread when it's still smoking after you do valve seals. Mostly because when I installed my red, and it smoked, I thought it was valve stem seals too. And then after I spent a whole day replacing those and it not fixing the issue.../QUOTE]
Could be but me too - still wondering how that picture proves it is valve seals.
I suggest the closest one can get to a test for bad valve seals without having the engine apart is to drive the car until good and hot, then shutdown for half an hour. Upon restart at the end of that time period look for an unusual amount of brown hazy smoke.
Could be but me too - still wondering how that picture proves it is valve seals.
I suggest the closest one can get to a test for bad valve seals without having the engine apart is to drive the car until good and hot, then shutdown for half an hour. Upon restart at the end of that time period look for an unusual amount of brown hazy smoke.
#45
EvoM Community Team Leader
iTrader: (60)
My experience has been, in general, not with this platform in particular, that the seals go bad because the guides are worn. Make sure to check those when it's all apart. New stem seals will seem like they've fixed the issue... until they get worn through from the bad guides.
Perhaps someone will chime in with more platform specific knowledge on evo valve guides.
Perhaps someone will chime in with more platform specific knowledge on evo valve guides.