921.166420 Craftsman Compressor very loud

by Joe
(Derry Pennsylvania )

Hello,
My model Craftsman Mo. 921166420 is extremely
loud when running.

Is there a muffler for this item.
In the photo there is a threaded
part that seems missing, is this
where a noise reducer goes?

Please send part number, for this
or how to correct the problem.

Thanks
Best Regards
Joe

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May 28, 2017
921.166420 loud
by: Bill

New problem, or always this way?

To what photo do you refer?

No noise reducer available for typical DIY compressors. If they are loud from new, that's not unusual.

If they suddenly get louder, pull the intake filter and monitor. If it gets quieter, it may be a plugged intake filter. Change it.

If that does nothing, likely a gasket inside the pump has blown.

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