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Ligouri Rd »
https://forums.nicoclub.com/ligouri-rd-u1844.html
Mon Oct 03, 2005 3:15 am
Quote »its normal for a new/rebuilt turbo to have slight shaft play. once its spinning and the oil gets to it it will be tighter. what are the specs on that turbo anyway [/quote]How much is slight 1/32", 1/16"?After much reworking of my manifold, I started noticing an occasional high pitch ringing when the engine is reved. I thought it was a loose screw or something but listening closely to the turbo I suddenly heard a "ZZZZZ Z Z Z Z Z Z Z Z Z Z Z Z Z" from either the compressor or turbine. I pulled off the intake and I could move the compressor side to side by a 1/16" or so. There is no in/out play but the side to side is enough to make it hard to turn if I push the compressor to one side. This was a brand new (Phoenix turbo) T3/T04E 2000 miles or so ago. This does not seem to be normal. It was getting oil, cause I disconnected the feed line, cranked the motor (fuel pump disconnected), and it spat oil into a jar. I have a -3 AN feed line and a -10 AN return (used to be -6 AN but replaced due to that forcing a little oil out the seals). Is this turbo shot already, how/why?