Turbo junked????
 

I wonder if my turbo is junked.
is black oil on blades bad?
i took it apart and the blades on the inside kind touch the plate on which it sit on.,, hard to explain cuz i don't know my terms

Re:Turbo junked????
 

Oil is not harmful, but could indicate a leak from a blown seal.


If the blades are touching anything it is junk. Sorry. :-\
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Re:Turbo junked????
 

not uh, my old t3 with 160k on it touched the sides generously and worked great, no smoke oranyhting..!@! and a few of my friends turbos are the same :!

Re:Turbo junked????
 

all the old turbo will have oil caked up on the blades..

its normal.

Re:Turbo junked????
 

i was wondering whats a good way to "clean the turbo.
when taking it apart does it really matter if mark the turbo so when you but it back together its aligned??

Re:Turbo junked????
 

well jeff has not marked a few and they still kick.

it is very important but u can get by without it, basically u could get shaft wobble, which cause bearing wear, which leads to turbine hitting the housing, which leads to the darkside.

anyways.

to clean it i use my glass bead booth. another good way is to use some gasoline and a tooth brush..

Re:Turbo junked????
 

Agreed, my T3/T4 on my car right now, I didnt re-align the compressor blade with the shaft, because my mark got washed away in the solvant tank, lol.. But shortyz is right, you want to re-align them the way you take them off for proper balance. Or, you could just take the compressor housing off, get some brake clean with a toothbrush, and you will be fine.

I've also had a few turbos that touched ever so slighly on the compressor housing, and didnt have problems with them at all. Once oil is filled in the center section, it takes a little bit of play between the bearings.

Jeff

Re:Turbo junked????
 

:oThat's crazy. I could see the oil taking up some of the play, but I don't know. That's like living on the edge. :-\
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Re:Turbo junked????
 

Check this site out. http://www.roadraceengineering.com/i...bowarranty.htm
Some shaft play is normal, some oil leakage is normal, alot of either is not so good. Turbo balance is critical, that's why turbo rebuilders spend $50,000.00 and up on computer controled ballancers, so there rebuilds will out last the warranty. Don't disassemble the rotating assembly unless you have to, clean it as a unit with brake clean and a tooth brush.