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Smoke Issue When Cold? Need Help

jays r33 gtr

By jays r33 gtr,
in General Maintenance

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jays r33 gtr Community Regular

jays r33 gtr

Posted
Posted

Hey guy's

Need some help? Motor only has 4xxxkm on it but recently when starting after about 3min idling it starts and starts to get warm it's blowing smoke (smells like Oil).

Smoke completely goes once i start driving.. any idea what it could be, valve stem seal??

Car is running on E85

Jayson

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https://www.sau.com.au/forums/topic/459923-smoke-issue-when-cold-need-help/
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tridentt150v Grand Master

tridentt150v

Posted
Posted

Sounds like seals.....or what oil are you using?

Oil being pumped up to head but too thick to drain back down until it is warmed up - so its flooding the head.

Another one is go for a drive and find a good sized hill, coast down and take your foot off the go pedal and let the motor suck up oil. When you accelerate away at the bottom is it clear or do you see a smoke plume. A smoke plume [when the motor is warm] indicates rings and/or guides.

GTRPSI Mentor

GTRPSI

Posted
Posted

There are many types of smoke.

Black smoke is rich.

Blue smoke is oil.

White steam is water evaporating from inside the exhaust when its warming up.

What color is it? (not smell)

Id say its black and running rich while in the warm up circuit.

Stem seals will smoke blue for a few seconds till it gets burned up if its the stem seals.....

sonicz Rising Star

sonicz

Posted
Posted (edited)

E85 attracts a ton of water so cars running E85 tend to have a lot of condensatin, or possibly called "white smoke" coming out the exhaust when idling. Are you sure its not just a lot of condensation mixed in with normal car smells?

Edited by sonicz
GTRPSI Mentor

GTRPSI

Posted
Posted

E85 attracts a ton of water so cars running E85 tend to have a lot of condensatin, or possibly called "white smoke" coming out the exhaust when idling. Are you sure its not just a lot of condensation mixed in with normal car smells?

Maybe his E85 has absorbed a shit load of water in the tank and running as a steam engine. :P

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Kinks Grand Master

Kinks

Posted
Posted

when starting after about 3min idling

Bad skyline owner. Bad! No!!! *hits nose with newspaper*

idling a cold engine causes additional wear, when idling so little heat is being produced it takes the engine ages to warm up. The more time spent "running cold" the more wear and blowby is happening.

start it, let it idle for 10 seconds to get oil pressure and then drive it gently (light throttle) staying under half redline (3500rpm).

Hadouken Grand Master

Hadouken

Posted
Posted

hmmm, if it takes 10 seconds to get oil pressure then im sure you will know about it in less than that.

I agree that whith idling extensively is no good, but are you trying to say that oil doesnt do anything until up to operating temp?

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