When you are ready with the waterpump, check if there is any play on the crankshaft pulley, if you can move it just a bit on the balancer it sounds like a worn bearing.
Just listened the video for the first time, now I am almost sure your pulley is loose on the balancer.
Hendrik
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Last edited by Hendrik van Oorspronk; 01-06-15 at 21:26.
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