my ancient 4hp sears craftsman air compressor needs a starting capacitor, I've determined (through a process of elimination). I still have the original owners manual, and the capacitor is "part of the motor", not shown in the parts blowup, or parts list, as a seperate orderable part. further, the friggin' thing seems to be a 'non-standard' mfd rating, too (it doesn't 'fall into' any capacitor size-groups of any maker's starting cap's I can find online. matter of fact, it's not even close):
the one in it now is110 volt, 485-580 mfd mallory #139852-49 seems a slightly non-standard SIZE as well: diameter: 1 13/16ths inch, and length, overall, excluding 'spades': hair over 4 5/16ths (but clearly under 4 3/8ths)
atttempts to locate same by the mallory part number on it entirely unsuccessful. so (physical size and 'look' issues aside) can I "daisy chain" two cap's and achieve the same net effect, somehow? appearance "not an issue", I just need a working compressor. I know I can replace the cap with a higher voltage cap, and that'd be fine (maybe even desireble) but what about the mfd rating? if I must, is it best to go 'bigger mfd numbers' or lesser?
thanks for tips on this, guys :-)