Clothes Dryer repair?

The capacitor question above is a good thing to look into. You have what is called a split-phase motor with start and run circuits. Without a properly operating start circuit, the motor will try to start on the run winding. Not enough torque to start it, even with the belt off. There should be an internal clixon switch that is a thermal protector. It will open if the motor gets too hot. Don't want to cycle that little switch too many times.

If it is a capacitor start/induction run motor, the capacitor is prolly bad. Their life expectancy is as low as 5 years, but usually more than 10 years. The low resistance you are seeing could be a shorted start capacitor(if you have one). They also fail open, but it shows as smoked or some of the internal stuff blows out through a little blow hole.

It's nice to see some of us still try to "save" an otherwise good whatever. Like an old Mopar! Good luck, let us know how you make out.