So my built b18c block is burning oil but only at idle. Under full boost everything seems to be fine but when im at idle i get lots of smoke coming out my exhaust. Any suggestions? I checked my charge pipes to see if my turbo was blowing oil through it and it seems like all pipes before intercool have a very slight coat of oil in them but after the intercooler they're all clean.. could it just be my turbo seals going out ?

 

mine is doing same thing.. i can boost it and drive it and then when i stop at a light i get smoke for like 5 secs or so then it stops.. but i did oil change before i dynoed yesterday and i put 5quarts thinknig to much oil

 

I don't think i put to much oil into the motor though. And for your case you kinda stop burning after 5 seconds but i keep it burning constantly during idle. I'm really really really hoping its my turbo and not my blocks =(. Gotta run the scary compressions test tomorrow

 

is it blue smoke? because if its black your running rich from to big of injectors without being tuned correctly etc etc. If its white its coolent burning of etc.

 

oh i didnt read the rest of your last post yea it could be a turbo seal...good luck on the compression test!

 

do a comp and leak down and check shaft play. smell the exhaust, what it smell like?

 

valve stem seals?

 

Yeah i'm sure its oil because its blue smoke....Today i popped off the filter on my turbo and i see oil around the shaft and a pretty good amount that i'm sure shouldn't be there. So i think it might be the turbo guys. Gonna do compression check anyway because i started to scare myself a lil to much. Thanks people of HT

 

sounds like turbo for sure! at least its better than the bottom end. let us know the comp test results.

 

had the same issue, swapped for a brand new turbo and everything is all good.. My brand new turbo failed out of the box..