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#1
02-14-2005, 09:36 AM
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Blue Smoke EH?
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.
__________________
 Upgrades... To many to list...
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#2
02-14-2005, 11:32 AM
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Re: Blue Smoke EH?
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.
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1995 3000GT VR-4 Installed: ESP front precat eliminating downpipe, test pipe, RF-1008 K&N, Dejon tool Y pipe, 1G DSM BOV, MSD wires, Guted rear pre cat, ISSPRO EV Marine boost gauge, IPO MBC, EGR blockoffs, Palm m515 dataloger setup, NGK iridium plugs, SPEC stage II clutch 500ft/lb, 5300k HID plug and play setup. Soon:Topline Engineering ground wires. |
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#3
02-14-2005, 11:56 AM
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Re: Blue Smoke EH?
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...
__________________
Upgrades... To many to list...
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#4
02-14-2005, 12:18 PM
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Re: Blue Smoke EH?
My guess would be piston rings or valve guides.
Running too rich produces black smoke, white is burnt coolant, blue is burnt oil.
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96 3000gt vr4 -K&N FIPK -Proboost mbc -Cusco front + rear strut bars -Greddy type-s -ATR downpipe -no cats -15Gs, 3sx aluminum pulley, FMIC, SAFC, walboro pump, EVO 560ccs, and Meth Injection Kit all waiting to go in shortly. Your 1996 Mitsubishi 3000GT VR-4 is the 92nd out of the 315 that were made that year. Only 21 of which are exactly identical. |
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#5
02-14-2005, 12:30 PM
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Re: Blue Smoke EH?
If you knew it was oil then why did you ask..
__________________
1995 3000GT VR-4 Installed: ESP front precat eliminating downpipe, test pipe, RF-1008 K&N, Dejon tool Y pipe, 1G DSM BOV, MSD wires, Guted rear pre cat, ISSPRO EV Marine boost gauge, IPO MBC, EGR blockoffs, Palm m515 dataloger setup, NGK iridium plugs, SPEC stage II clutch 500ft/lb, 5300k HID plug and play setup. Soon:Topline Engineering ground wires. |
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#6
02-14-2005, 03:04 PM
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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.
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#7
04-13-2007, 01:32 AM
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Re: Blue Smoke EH?
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.
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#8
04-13-2007, 05:15 AM
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Re: Blue Smoke EH?
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? |
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