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3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

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Old 11-21-2004, 06:53 PM   #1 (permalink)
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Have been trying to track down a grating noise from the engine. Replaced the upper pulley (solved the howling wind noise) the lower pulley (hydralic) and checked the AC compressor (OK). Maybe a bad bearing in the alternator? Any suggestions? I already thought of earplugs.
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Old 11-21-2004, 06:55 PM   #2 (permalink)
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Yea.. see if you can get a long wrench of sort.. something long and metal... then wrap one end with your hand... and put the other end... near... or on the pulley shaft.. and search around for the sound... you should hear a loud grinding noise if that is what you are looking for ..

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Old 11-21-2004, 08:33 PM   #3 (permalink)
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You mean use it as a stethoscope to verify its generating the noise? Good suggestion, I wanted to rule out all other possibilities before replacing the alternator since they usually last longer than this and aren't cheap. Tks for the tip.
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