Need Help!- DC Brush Servo test

[MSGMachine]

I am trying to determine if my SEM MT30F4-25 DC brush servos are in good enough shape to continue with my retrofit.(specs attached)

To Al's rec. I tested the amp draw from both motors using a 12v 8A power supply.
Motor X was 0.56A to 0.67A
Motor Y was 0.96A to 1.19A

I also checked the Ohm reading accross the two leads at different positions of rotation.

Motor X was 1.6 to 2.8 ohms
Motor Y was 1.2 to 1.4 ohms

I have been told to test my motors this way but since I have little to no experience with servo motors I am having a hard time figuring out what this is trying to tell me. It bothers my a little that the Ohm rating for Motor X is so inconsistant. is this a sine of a problem?

The amp reading of motor Y would also go up and down in the range given, but only in the CCW direction.

Could these things be a sine of a problem, or am I just looking too hard?
What I don't want is to spend alot of money and later find a problem that I could have fixed now. So if anyone has anymore suggestions or better test please let me know.

Thanks

[Al_The_Man]

The resistance test on a brushed motor is not a good indication due to brush resistance and contact.
Normally to measure a more realistic armature resistance without dismantling the motor is to pass a current with locked rotor and measure the exact volt drop, a certain amount has to be allowed for for brush resistance.
If there is any doubt about the motors it is best to check the condition of the commutator and brushes.
This is often a good indication, extreme pitting of the comm and brushes is usually the tell tale sign.
Al.