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1998 Mazda B2500 Question: Why is there a timing mark on the oil pump pulley



Pt mech, 2.5L 4 Cylinder, Minneapolis, MN, May 21, 2014, 23:28

I was changing the timing belt and the picture I found on the marks had a mark on the oil pump pulley

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  • Answer #1

    May 22, 2014, 22:12

    It might also be a balance shaft , which if misaligned will cause vibration.

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