Craftsman owners manuals

SOURCE: My craftsman 3 gal. air compressor, 921.153101 won't compress air

I WOULD TRY DISCONNECTING THE PIPING FROM THE HEAD DOWN TO THE TANK AND SEE IF ITS BLOWING AIR. COULD THE COMPRESSOR BE RUNNING BACKWARDS - YOU WOULD HAVE HAD TO CHANGE THE WIRING IN THE MOTOR.
VALVES IN THE HEAD COULD ALSO BE BROKEN. YOU CAN REMOVE THE INTAKE AND IT SHOULD **** YOUR FINGERS AT THE OPENING. HOPE THIS HELPS.

SOURCE: I am replacing the cylinder

http://www.searspartsdirect.com/partsdirect/part-model/Craftsman-Parts/Air-compressor-Parts/Model-919165020/0247/0703000 This is the exploded view that I used.

67 head 65 gasket 64 reed valve plate 63 ring,this one goes under the reed valve plate 62 screw that goes thru the 61 piston 60is a ring that sets on the top of the connecting rod screw the piston with the ring into the top of the connecting rod then take the connecting rod end cap off and cover the studs with some rubber tubing.This will protect the crankshaft when you push connecting rod and piston assembly in to the sleeve that is seated in the block.The ring should be flexible enough to push into the sleeve,if not a bit of oil should help.Guide the connecting rod on to the the crank shaft.I hope this helps and thank you for using FixYa.com

Owner's Manual - CRAFTSMAN Air compressor 919165020, 919165050, 919165090, 919165230, 919167330, 919165221, 919165070, 919165310, 919164200, 919165060, 919165300, 919152922, 919165250, 919186430, 919155613, 919164150, 919165030, 919165130, 919165500, MG2-OILFREE, 919165110, 919167200, 919165000 - ManageMyLife.com