Just refurbed alternator and...........

I'd flat bed it to my mechanic and cross my fingers! What are you thinking?? A Ferrari that's making whining noises isn't going to heal itself by revving it.

Ken

 

Could be an overtightened alternator belt...could be a bad refurb job on the alternator...either way I'd guess that a loud whining noise signifies a failing bearing.

 

Could be anything of course. Since this guy says he's stumped, I assume he's either not mechanically minded or already eliminated the obvious like a bad rebuild. If the whine can't be traced directly to the alternator, I'd err on the side of caution and have a mechanic look at it, and not run the car.

Ken

 

(Have to agree that an objectional "noise" has to be something mechanical, but) Have you measured the voltage coming out of the alternator at ~2000 RPM (i.e., the voltage at the battery terminals at ~2000 RPM)? If this is a US version TR and the alternator goes over-voltage, it will blow the fuse in the protection relay and cause a "weak running" situation because there's no +12V power to the injection system -- just something easy to rule in or out.

 

A whine in a Ferrari, scary.

Make sure your battery is fully charged, remove the alternator belt, A/C belt etc., start the car and see if the whine goes away.

 

That would also apply to the later Euro TR with KE-Jetronic (engine family F113B), but if you have an early Euro K-Jet F113A it doesn't.

 

+1