When I recently had my turbos out for wastegate porting I noticed that on my primary turbo, in the exhaust housing, there was a light brown powder-like coating. It looks similar to the spark plugs when a car is running properly. What would cause this? Should I worry?

 

Pretty sure its normal. My 80kmi turbo had it also when I took it off during my rebuild. It was almost pink in color. IMHO

 

hey danny,
when i took mine off last week i noticed the same thing, must be normal. ive got that cd made for ya, come an get it. later

 

I have it to, so I guess it's normal. At least it's better than discovering oil in there!