Blow by

[MattJansky]

My engine has a small amount of blow by happening. It only happens on take off/coming off idle. Should I be fairly concerned about this or should I change to a thicker oil, if so then what?

 

[tweak'e]

what engine?
blowby is typically at its worse at idle.
zd30 tends to look worse than it is due to the way the timing cover is.

 

[MattJansky]

Yeah zd30 I meant it's burning oil cos it's leaving clouds of smoke when I take off
Am I right in assuming that it would be blow by?

 

[tweak'e]

fairly rare the smoke if due to blowby.
firstly what color smoke and if possible what does it smell like?

 

[MattJansky]

Oh really
It's grey, slightly whitish
I'm just presuming it's not the turbo oil seal because the turbo was rebuilt and recored less than 5000 kms ago
Should I be looking at injectors?

 

[tweak'e]

white is typically turbo. possible they didn't seat the rear seal correctly.
also check the breather line is not partly blocked, especially if you have a catch can fitted.

if its blowing white when cold then check glows are working.
otherwise white smoke tends to be injection timing problem, usually loose a bit of power at the same time due to the timing being so poor. but they normally throw an error code if its to far out.