Outer Limits 4x4 Board

i was giving my truck a very hard time on the weekend when i got it very hot due to my viscous hub failing(i month old repco aftermarket, never again) and when i could stop i noticed it was blowing smoke and then it tried to run on the engine oil for about 5 seconds. i pulled the oil filler cap off and it was spraying oil everywhere so i just accepted that i had broken rings or cracked a piston . i let it sit for a few hours and then started it, it blew a ploom of smoke for about ten seconds and then was fine. next i started the following morning and it did the ten second smoke thing again so i took the filler cap off again and it wasn't breathing anymore than normal. i drove it hard all day abd it has gone back to normal. no smoke, not fuming, starts perfect. i have no idea what happened??????!!!!!!! i thought maybe a ring became jammed in the piston or somthing, or could it be an oil pressure prob?? i drove it about 550km home(beachport to n.e. melb) and it ran perfect and used no oil.

By the sounds of it your lucky i'd be doing a oil change asap and hope for the best, For now it may have stuffed the rings but still run.
Time will tell.

Sounds like the head or intake could be filling/flooding with oil - not sure what could cause that intermittently?

-Stu

i think it's just pumped oil into the intake(don't run a catch can) once when it was hot and then it took a while for the oil to get through the turbo/cooler/plumbing. strange........................

i would start with the turbo inner seals.

they can spew a nice load of oil into the intake when cold if they are deteriorating

i would of thought that it was the turbo if it wasn't breathing so bad. it went from just fuming a slight haze to covering my hand with oil when i held it over the filler hole. thats what made me think it was leaking compression or the oil pump going crazy.

Yeah that's my thinking if it has more blow by now the rings may be welded to the piston when it warms up it it takes up a bit of the gap but it will still have more blow byif a turbo seal is leaking it'lll have more exhaust smoke.

Yeah that's my thinking if it has more blow by now the rings may be welded to the piston when it warms up it it takes up a bit of the gap but it will still have more blow byif a turbo seal is leaking it'lll have more exhaust smoke.