Bulk smoke when idling after carrying very heavy load

[SIMMO84]

Its happend a few times this weekend (taking green waste to dump) Basically Ive driven about 10kms heavily loaded and the highest speed I could get was around 80kph (wind resistance, 4th gear pinned) when I got to the dump and unloading there was heaps of light blue smoke( like a small camp fire) for about 10mins. Im just wondering if the EGT has got high enough to burn off the deposits in the exhaust or is the turbo or something else shagged.

It is a 2.4 turbo diesel hilux motor and therefore is usually held flat just about everywhere anyway. I know blue smoke is oil smoke but it never does this any other other time but when heavily loaded. I tryed giving it an absolute hiding on the way home (no load on tray) to see if I could duplicate the symptoms again to no success.

I am a diesel mechanic myself but have never heard of these symptoms before. What does everyone think?

[tweak'e]

probably just the increased blowby from being at full throttle causing more oil to blow into the intake.

[Z()LTAN]

sticky aneroid mate

aneroid = boost compensator

[SIMMO84]

Sorry forgot to mention its an after market turbo, standard 2.4 diesel motor and pump.

[Z()LTAN]

ah ok.

Smoke color?

Edit:

After reading all of you post i see you stated light blue.

Thats oil,

Have a look and see if they have left your PCV plumbed into the pressure side of your turbo

[SIMMO84]

Yeah its on the suction side of the turbo. After about 10mins of idleing the smoke is gone. I havent checked oiil level yet but doesnt usually need top ups between services.

[SIMMO84]

Spoke to my boss about it and he thinks it was just burning the crap in the exhaust out. Will see how it goes.