IC to Turbo boot
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Posting Guru
Joined: Mar 2010
Posts: 2,234
Likes: 2
From: Upstate NY
IC to Turbo boot
Hello all I ended up pulling the boot off cleaned everything up with brake cleaner and then reassembled, the squeak was still present at startup but after driving about 3 miles it somewhat calmed down and doesnt chirp as bad as before I also noticed the whoom noise gone, I cannot figure out why it hisses I torqued to specs aswell 9ft/lbs any other ideas maybe the boot has a pin hole somewhere? it is brand new though, I grabbed the fins on the turbo and it seemed fine no extreme play in it any ideas?
Senior User
Joined: Apr 2004
Posts: 352
Likes: 0
From: Millbrook, AL
IIRC the tolerance for the turbo bearings is .001"-.004". So if it moves at all side to side they're bad. Seems like someone mentioned a rebuild kit recently for $125.
FTE Leadership Emeritus
Joined: Aug 2007
Posts: 42,085
Likes: 6
From: Lakewood, Ca.
When you say hiss it makes it sound like you might have an exhaust leak. Check all of the connections on the piping that comes up to the turbo to be sure they're tight, and look around for any soot that might tip you off to a crack.
Elder User
Joined: Jan 2007
Posts: 620
Likes: 0
From: Langley, BC, Canada
I have rebuilt a few turbos with all brand new parts and they all have a very slight side to side movement.
