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+--- Thread: Any reason why a professionally rebuilt T3 should whine like a siren? (/showthread.php?tid=2138)
Any reason why a professionally rebuilt T3 should whine like a siren? - mcneil - 01-09-2011
I finally got everything back together, and I'm afraid to really drive it since the turbo is whining pretty loudly. I replaced the oil supply line and cranked with the injector lines off it to get oil moving before starting it. I let it warm up at idle for 10 min, but then as soon as I revved it I heard some serious whine.
Anyone ever heard of a turbo whining initially until broken in?
Full pictures are here:
Benz head rebuild gallery
RE: Any reason why a professionally rebuilt T3 should whine like a siren? - ForcedInduction - 01-09-2011
Turbos do not break in.
How much play does the shaft have? Check for air and exhaust leaks.
RE: Any reason why a professionally rebuilt T3 should whine like a siren? - tomnik - 01-10-2011
isn't this sound created by airflow?
Compressor wheel (edges) deformation/dents?
Or some resonance over the compressor wheel?
Tom
RE: Any reason why a professionally rebuilt T3 should whine like a siren? - mcneil - 01-10-2011
(01-09-2011, 11:38 PM)ForcedInduction Turbos do not break in.
Crap.. I was afraid you were going to say that.
I leak-checked everything, too. I called down to the rebuilder, who said send it in. He suggests it might be out of balance.
RE: Any reason why a professionally rebuilt T3 should whine like a siren? - ForcedInduction - 01-10-2011
I hope he is covering shipping since his work was defective.