Diesel Smoke=Blown Turbo?

[turbojkt]

I just blew up my TE62 today. I've only got about 4,000 miles on it. It happened when I lined up behind a Duramax at a stop light. When the light turned green, he obviously floored it blowing a lot of smoke, and I floored my TR while behind him trying to get into the other lane ahead of the car next to me. The boost came up as usual and I was about to change lanes and Pow! I heard a loud noise and had no power. I came home and checked the inlet wheel on the turbo.....it is OK with a normal amount of play, but I haven't looked at the exhaust side yet. All the hoses are OK. There is a dull rattling noise when trying to build boost.

My question is...could the heavy diesel smoke going into the intake increasing pressure on the turbine wheel to cause it to go out? OR is it just a coincidence? My air cleaner is behind the front bumber in the area before the AC condensor so it would be able to suck in a lot of smoke.

 

[Quick6'n'-K.C.]

Id say the hose broke at the bottom of that hose leading to the BGC 23 row intercooler.

Try and build boost and have a friend check the hoses for air rushing out.

BW

 

[BlackMetal]

I'm no turbo expert but I'm pretty sure smoke can't blow a turbo, check for more reasonable explanations like what Quick6 suggested. Besides it's not like the guy's exhaust was plumbed directly into your intake, might have pulled in a tiny bit of smoke from behind your bumper if any at all.

Also try to keep the forums clean by posting in one section, you posted the same question in the general tech area as well. You'll get plenty of help whichever section you post in you don't need to post it twice, it's just a slow day for responses because of the holiday.

 

[Hot Air]

My 62 wennt out about a month ago. No diesel was involved. The exhaust side bearing/seal was gone...I could measure side-to-side play in 1/16" of inch. Jack fixed me up with a new turbo.
Conrad

btw, I had trouble with crank sensor and was running way rich...we think it diluted the oil and wiped the turbo bearing

 

[turbojkt]

Exhaust wheel blades broken

The car still runs, drives and sounds fine......but is slower than my 1989 Olds with a 3.8.

 

[notacarlo]

WOW, looks like you got real hot.

 

[Quick6'n'-K.C.]

Are you sure something didnt let go? Spark plug electrode, piece of ceramic,piston starting to let go,.. throttle body screw!!!!!!

Time for the turbo to get rebuilt, but you need to know what started it all.

A few years ago Red Hot Air had issues with the 50 series turbos and trashed 3 in a row in less than one month.



BW