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Originally Posted by MBCoupe Thanks for your input Greg.
The brush replacement sounds like brain surgery to me - I think I'll go the rebuild route. I noticed that there is a 90 amp and a 120 amp alternator on the aftermarket. How can I determine which one is the right replacement unit for my car? Do you have a preferred vendor that you use to buy parts?
The Service Tech made a definitive diagnosis that the sound is coming from the alternator and not from the air pump.
Thanks again,
Richard |
Hi, Richard.
If you have a second car to use there is actually a local rebuilder not too far from you (Campbell area if I remember correctly), let me find their contact info. You'd take yours down to them, then pick it up, or if they have a rebuild in stock they'll trade you. I was going to use them but ultimately determined mine was just the voltage regulator so I R&R'd the alternator and then R&R'd the regulator. FWIW if your design is like mine (I can't say...) then your brushes are built into the regulator, you pop it off and there they are, absolute piece of cake, but they're not the noisemakers.. To replace the bearings requires disassembling the alternator and removing the pulley, which are much tougher than the brushes but still doable.
I'll PM you the rebuilder info as soon as I have a chance.
Take care and enjoy the ride,
Greg