High RPM smoke, WTF??
#26
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Originally Posted by scathcart
I will.
The only time you see this happening is in extremely high HP applications and cases of detonation, where you can actually see where the rotor housing flexed and moved around.
Under normal, low power applications such as this, the pressure deflection of the rotor housing is neglible... While ANY force will cause some distance, this distance is so ridiculously minute that it cannot be measured.
The only time you see this happening is in extremely high HP applications and cases of detonation, where you can actually see where the rotor housing flexed and moved around.
Under normal, low power applications such as this, the pressure deflection of the rotor housing is neglible... While ANY force will cause some distance, this distance is so ridiculously minute that it cannot be measured.
#27
Yeah i run 20W50 anyway, and i checked the coolent dill today it wasent low or anything and i cranked the car and it didnt move, it stayed glassy looking, and it didnt have any bubbles in it, or in the oil, looked normal, bright green, and do you have to tear the engine down to get to the oil control rings...Thanx for all your imput
#30
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Ok I gotta call bullshit here, I compaired to a lot of people on this form dont know **** about this stuff, but wouldn't coolant getting by into the rotor at a high rpm make the car shake very badly? if it was a small amount you would still be able to see the intersection you went through, if it was oil, wouldn't there have to be a pretty good amount getting by to cause that? My car smokes like a prison inmate when you start it every time, but even after everything, it doesn't do that, I would say drain the oil and mesure how much comes out, expecting what would be in the filter still. Better yet, get a coffee can with a coffee pot filter and strain thru some oil, about a court and a half... See what comes out or not, the water will sit on top of the oil, carbon will stay on top. Feel free to pick this apart since I am just a noob too!
#31
I wish I was driving!
Originally Posted by RX7Boy06
how can u check the oil rings
Originally Posted by scathcart
In neutral, bring the engine up to 5000 rpm and hold it there for a minute. If smoke pours out the back, it is your oil control rings.
#32
I wish I was driving!
Originally Posted by Nicks87
Ok I gotta call bullshit here, I compaired to a lot of people on this form dont know **** about this stuff, but wouldn't coolant getting by into the rotor at a high rpm make the car shake very badly?
Originally Posted by Nicks87
if it was a small amount you would still be able to see the intersection you went through, if it was oil, wouldn't there have to be a pretty good amount getting by to cause that?
It takes very, very little oil in the combustion chamber to get smoke out of the exhaust. Measurement in drop of oil volume from the system would show nearly zero change after making the engine smoke through one intersection.
Originally Posted by Nicks87
My car smokes like a prison inmate when you start it every time, but even after everything, it doesn't do that
Originally Posted by Nicks87
I would say drain the oil and mesure how much comes out, expecting what would be in the filter still. Better yet, get a coffee can with a coffee pot filter and strain thru some oil, about a court and a half... See what comes out or not, the water will sit on top of the oil, carbon will stay on top. Feel free to pick this apart since I am just a noob too!
1. When the coolant o-rings go, some coolant is ingested and burnt in the engine, and some combustion gases leave the combustion chamber into the cooling system (this is the bubbles you see). Since the coolant is instantly turned into vapour, it will not mix in any significant amount with the oil system, so checking the oil for water deposits will reveal nothing as to the condition of the oil control seals or the coolant seals.
2. Coolant, a mixture of ethylene glycol and water, WILL mix with water. It forms a white sludge, that can mix with oil. It is not uncommon to see this forming in the oil filler neck, as condensation from the engine evaporates and mixes with oil vapours.
#33
ok i brought the car to 5k today and let it sit i started smoking not boiling out the back, but still enough that u can see it when u sit in the car, how long till the rings go completely, and this seafoam stuff, what does it do, and anything else to help this prob would be appreciated.
#35
I wish I was driving!
Originally Posted by RX7Boy06
ok i brought the car to 5k today and let it sit i started smoking not boiling out the back, but still enough that u can see it when u sit in the car, how long till the rings go completely, and this seafoam stuff, what does it do, and anything else to help this prob would be appreciated.
The seals will continue to get worse, causing more higher-rpm smoke, but they will never kill your engine. In fact, they will likely increase the lubrication to the combustion chamber and decrease engine wear.
#37
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I had the same issue on my S5 N/A. When it was an automatic. See when it was an auto It never went higher than 6800rpm. After the 5 speed swap I started pushing it to 8k on a regular basis. IT smoked like crazy for a bit but stopped and after a regular beating it stopped. Now instead of smoke I see fire.
#40
DOWNSTAIRS MIXUP
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My S5 N/A smokes like a buning hobo until its warm if I take it past 5500rpms or so. I think its due to the seals not expanding and not doing their duty. I never drive my car past about 3500rpms during warm-up and I keep my E-Fan off until its about 3/4 of the way to normal operating temp. Of course this is just my car, so IDK.
EDIT: Forgot my sig .
EDIT: Forgot my sig .
#42
Lean Mean Speed Thingie
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i don't think anything you can do is going "help" the seals out, but it may keep them from getting worse i guess. The way i see it, im gonna drive it til it finally blows through one of the o rings, then it smokes INCREDIBLY. I know this cause my fc did this when i first bought it, and now my fb is steadily on its way to the same fate. I get my smoke bad outta the fb when i accelerate to high rpms...then let off...then when i accelerate again i see a big puff of smoke. My oil consumption is about a quart every 300 miles...pretty sad, but id rather be burning too much than not enough oil, it really can't hurt anything (except your bumper and tail lights above the exhuast, they just turn black, lol).
So i guess i wouldn't worry about rebuilding for awhile, save up your $$ and do it right, the full deterioration of the control rings will probably be slow, just be sure you are checking your oil at every fill up!
So i guess i wouldn't worry about rebuilding for awhile, save up your $$ and do it right, the full deterioration of the control rings will probably be slow, just be sure you are checking your oil at every fill up!
#44
Banned. I got OWNED!!!
Originally Posted by RX7Boy06
Alright thanx man i will do that, and, i have to put a quart in every 3 to 400 miles too,lol
Thanx for all the help
Thanx for all the help
#45
I wish I was driving!
Originally Posted by RX7Boy06
so do i need to go redlineing or will this just help the oil seals go out complety...quicker...
Oil changes on time, though, will help it from getting any worse.
#46
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Here's what I use. Now I swear to god ever since I used this stuff my car never smokes and runs frickin great. 3 Qts royal purple 20w50 synthetic and 1 qt Hyper lube smoke fix. Its in a white bottle and you can get it at pep boys or checker. I guarantee you'll like it and your car won't smoke at all.
#48
No money. No love.
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Somthing to add to the confusion: My 88 TII never smoked. I removed the high flow cat so I now have 3" downpipe > 3" midpipe > 2.5" greddy catback. Now it puts out a some grey smoke at shifts when redlining. The rebuilt engine only has 50k on it and its mildly streetported. Why would it do this after the high flow cat is gone? Do i have the oil seal thing problem now too?
#49
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Smokey did this too (thus the name)
We found it came in really handy when people were tailgating too close!!!!
Anyway, it started out it would only smoke when you lifted at high RPMs... eventually the seals let go an it smoked all the time
We made sure we kept oil in it, never gave us any trouble.
We put lucas in it and it didnt smoke for a long time in the beginning.
Good luck!
We found it came in really handy when people were tailgating too close!!!!
Anyway, it started out it would only smoke when you lifted at high RPMs... eventually the seals let go an it smoked all the time
We made sure we kept oil in it, never gave us any trouble.
We put lucas in it and it didnt smoke for a long time in the beginning.
Good luck!
#50
Sharp Claws
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it is unburnt fuel, the cats burn up that fuel so you don't see it but with the cats removed you can now see the unburnt fuel.
i'm sure you have been behind an old american car and seen them get on the gas and grey smoke pouring out the pipes, it is because it is running richer than a **** and can't burn all the fuel and older cars had no cats so you see the unburnt fuel.
todays message has been brought to you by the letter "E".
i'm sure you have been behind an old american car and seen them get on the gas and grey smoke pouring out the pipes, it is because it is running richer than a **** and can't burn all the fuel and older cars had no cats so you see the unburnt fuel.
todays message has been brought to you by the letter "E".
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