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It's whistling again....

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My TR6 has lately taken on a new noise and it has me perplexed. I get a distinct whistling noise somewhere out of the engine comparment that rises and falls with engine rmp, w/ or w/o clutch action. The last things I have done to the car are put in new thrust washers, changed the water pump (thought that was the noise, but no), new Delco-style alternator (stethoscope has no noise here). All vacumns are intact. Could this be a timing chain noise? Cam noise?
Engine is basicallly new (15K). Am I about to blow up? Sounds like the a fan noise. Could bearings make such a sound? At wits end, again. Plan on doing a competition cam and increase compression soon. Gotta know!

Bill
 
You don't have a hose leak anywhere do you?
Just a thought.
 
Why dont' you take the fan belt off of a minute or so and see if it still does it? That would eliminate the fan, water pump and alternator. At least you would know it wasn't the motor.

-Shannon
 
Sounds annoying but not serious. Sometimes you can find an exhaust leak by just (carefully) placing your hand in the vicintity of the exhaust system joints.
 
TR6Bill:
If you had not eliminated the alternator, I would have bet the noise is coming from the alternator. If it is a vacuum leak they usually get louder on the rev-down compared to the rev-up. Have you lubed the distributor shaft? Could your oil pump be sucking some air? Do you have the OEM fuel pump or electric? I like the suggestion made earlier: loosen the fan belt and crank it up for a test; sure would eliminate some prime suspect areas.
 
Working on it, VD, got a long list of honey-do's that have taken priority right now. The nerve of that woman!

Bill
 
Dude you need to get your priorities straight.
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