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Old 11-15-2014, 08:10 AM   #1
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Default What's this noise?

I've just had my head gasket replaced and on the way home this noise started. There is a constant whine and a rattling sound at certain RPM (particularly around 2000).
http://youtu.be/2I5k2mBHyj4

Any ideas?

From reading around, I'm thinking over-tensioned timing belt or a shot water pump but would like to hear from someone with a bit more knowledge.

Thanks
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Old 11-18-2014, 01:02 PM   #2
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I'd make sure the accessory belts aren't too tight first, since they're sitting right there.
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Old 12-01-2014, 04:19 AM   #3
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Thanks. I used a stethoscope to listen to the ancillaries but couldn't hear anything odd except coming from inside the head.

In the end, it turned out to be a bad idler bearing.
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