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A Very Small Puff Of Blue Smoke On Start

WogsRus

By WogsRus,
in Engines & Forced Induction

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WogsRus Veteran

WogsRus

Posted
Posted

hi

recently i notice on cold start, there will be a puff, a very small one,not one you will see unless looking at the exhaust pipe.

No it only does this when cold, a puff, and that's it, unless you give it a boot fool when cold, and then maybe another puff.

Now the turbo has had a hard life, and i am wandering if it is that in anyway, or something starting to let go. It hasn't used any oil and i only noticed it since i put the synthetic stuff in it.

Commpression is good, no leak down yet. Car runs strong andso forht.

HKS99 Collaborator

HKS99

Posted
Posted (edited)

i wouldnt worry to much if its just on cold starts.

however, could also be turbo seals, valve steam seals or piston rings.

have been told best way to check is to, pull off your intercooler pipping and check for oil. If there is oil then it will be your turbo if not then its your rings.

also check your dipstick to make sure your levels are correct and you havint over filled.

can also get a compression and cylinder leakage test, that will let you know straight away.

Edited by HKS99
WogsRus Veteran

WogsRus

Posted
  • Author
Posted

thanks guys.

Yeah i will pul the pipes off to have a look. I know when I tested the compretion 2 weeks ago it was all good. Will do a leak down and so forht.

Showed my old man, who is a bit of a car buff, and he reconed it was nothing, it could be th oil in it, as it is very thin, and synthetic, FUCHS oil.

I followed the car behind, and did not see any clods of smoke out of the car while running hot, but the oil is a bit high, propably 3-5 mmover full line. OOPPPSSS.

Didn't spot this before.

WogsRus Veteran

WogsRus

Posted
  • Author
Posted

by a small puff, i mean you can't see it unless looking at the tail pipe.

And if you flog it dead cold, not a thing to do anyway, you will see a white/blue smoke behind for a second or so. Not a massive plume, just enough to notice.

I think it might be turbo seals leaking a bit. OK

STOP WARYING ABOUT IT. GOT IT. LOL.

SECURITY Grand Master

SECURITY

Posted
Posted

i dont see how blue smoke in any case, big or small, isnt something to worry about.

if your valve stem seals are shot then it'll only get worse. make sure it is your turbo before writing off the stem seals.

WogsRus Veteran

WogsRus

Posted
  • Author
Posted

oh well if it is the valve seals, loks like i get to build my 500HP motor. LOL.

Yeah at the momenti amnot really warried about it, it mainly started when i got the new thinner synthetic oil in it, will try different bra and type next chan,approx 1k away.

She has definetly not used any oil over the past 4K kliks, so so far it's all good.

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