Blue Smoke EH?
92VR4Red
02-14-2005, 09:36 AM
Ok... Very embarasing... I start my car, look back and what do I see? blue smoke... but as a drive it doesn't smoke... I sit at a stop light there is no smoke, but when I give a little thorttle... I see some blue smoke come out... but thats only if i sit for 2 - 3 mins... any sujections on what it is? I have a idea on what it is but I want to hear someone elses sujections and experence.
Thourun
02-14-2005, 11:32 AM
I'm pretty shure blue smoke means your burning oil, which would mean oil is getting into the combustion chamber. I guess it could also mean your runing very very rich but I bet its the oil.
92VR4Red
02-14-2005, 11:56 AM
of corse its oil... but whats causeing is what im trying to find out... running rich you useully get a white or grayish smoke...
Im asking if its something liek the Vaulve guide seals...
Im asking if its something liek the Vaulve guide seals...
Igovert500
02-14-2005, 12:18 PM
My guess would be piston rings or valve guides.
Running too rich produces black smoke, white is burnt coolant, blue is burnt oil.
Running too rich produces black smoke, white is burnt coolant, blue is burnt oil.
Thourun
02-14-2005, 12:30 PM
If you knew it was oil then why did you ask..
77chrome
02-14-2005, 03:04 PM
Valve guide seals no doubt. When the go bad your valves cant close compleltly allowing oil to drip through. But it needs time to build up thats why it only happens when it sits for a while.
estolten1
04-13-2007, 01:32 AM
When the valve guides are worn and or the valve seals are worn or cracked oil is able to run down the valve stems and build up in the combustion chamber. When started the oil burns and that is the blue smoke you see. If it were piston rings you would get blue smoke all the time and worse at higher RPM's. Black smoke is too much gas ( running rich ). Blue smoke is burning oil. No Question About It! If you do a dry/wet compression check you will confirm my diagnosis. If it's the rings, on the wet test, compression will increase, If it's the valve guides and or seals compression will stay close to the dry test readings with little increase in compression.
AutostradaVR4
04-13-2007, 05:15 AM
my seals are starting to leak too...or maybe its my turbo seals. Damn stockers...
only a little blue smoke on startup if its sat for >12 hours or so.
are VG seals hard to do? gotta pull the heads? think it can be a day project?
only a little blue smoke on startup if its sat for >12 hours or so.
are VG seals hard to do? gotta pull the heads? think it can be a day project?
Stealthee
04-13-2007, 07:57 AM
2 year old threads FTL
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