Quote:
Originally Posted by blvsmith
With belt back on and stethoscope in hand I check all and found the noise coming from alternator or upper idler pully. I really can not distinguish which one the noise is originating from. With the belt off the upper idler pully seemed fine. Could it be the alternator?
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If your Stethoscope test is valid - yes the alternator bearings may be noisy/worn.
The freewheeling clutch on the Bosch alternator requires a peculiar little tool to remove it.But they are cheap on Fleabay.It is often very tight. Lots on Youtube to help you remove.
https://www.youtube.com/watch?v=p52VTAnLptI
There is an upgrade alternator on Amazon -inexpensive.
Replacing it -read the excellent Pelican DIY. There is one bolt that can be a pain ! Search.
Now is the time.
While you have the Alternator out inspect the cavity under the Inlt Manifold to see if vacuum hoses have been dislodged.
If you lack the tools/experience, you might want to find an M96 Indie for this......but we mentioned that earlier