7.3 Water Pump. Anyone use a mechanic's stethoscope to check one? - Ford Powerstroke Diesel Forum
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post #1 of 5 Old 09-20-2011, 12:16 PM Thread Starter
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7.3 Water Pump. Anyone use a mechanic's stethoscope to check one?

If so, is it possible to hear the bearings and determine whether or not they are going bad above the noise of the diesel engine?


Thanks in advance
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post #2 of 5 Old 09-20-2011, 12:55 PM
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Yeah if you had a stethoscope then you coud hear it. Or you can see if theirs any play in the bearings by rocking the fan.

Allen
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post #3 of 5 Old 09-20-2011, 01:23 PM
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trying to rock the fan is how i tell

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post #4 of 5 Old 09-20-2011, 03:56 PM Thread Starter
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Thanks. Does anyone know the amount of play which is "acceptable"? With the serpentine belt off, I was able to slightly move the fan back and forth, maybe (just guessing) 1/25 of an inch. When I put the belt back on, I was not able to rock the fan back and forth at all, so I'm pretty sure the movement is in the water pump shaft.

I appreciate everybody's input.
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post #5 of 5 Old 09-20-2011, 04:29 PM
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When i redid my water pump i dont remember any play at all on the new pump.

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