York OBA vibration

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Nov 26, 2007
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205
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NorCal
I have York OBA and when not engaged it has a vibration around 2,000 RPM. Belt tight and pulleys in line. Solid 8 bolt mount. Any ideas?
 

inkpot

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Joined
Jan 30, 2003
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13,707
Location
All over Arizona
I have York OBA and when not engaged it has a vibration around 2,000 RPM. Belt tight and pulleys in line. Solid 8 bolt mount. Any ideas?
Howdy! Loosen belt and check clutch pulley bearing for noise/wear/runout. They are not very expensive, and many of us have Yorks that are VERY old. It could be the belt is wearing out or has a bad spot on it. Could be more obvious when NOT under load. My belt has a very long straight run on one side and it vibrates pretty bad when under load at over 1500 rpm. I just need to add an idler pulley. John
 

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