Join Date: Jul 2003
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York pulley size
I have aquired two yorks. One has a tag that confirms its a 10cfm, the other has an AMC tag that tells me nothing. So I pulled the pulleys off of both (kudos to the engineer that designed that!!! Pretty simple!) Anyway, they both have a shaft that id's them as 10cfm, but one has a 6" pulley and the other has a 7" pulley.
I would imagine that the internal dimensions of these things are the same, but to get the same output from these pumps, shouldn't they have matched pulleys??
Other than finding a new clutch/pulley that match, whats to say that putting on a smaller pulley assembly won't bump up the output?? I don't have my calculator here, so I can't see exactly how much it will change the output...but nonetheless I am curious!