Reply to "Dead Motor Replacement?"

gunrunnerjohnOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

@Scott J posted:
Pretty sure it’s this one. No matter what motor I connect to the non tach motor leads it won’t spin a bit at the low voltage that the tach motor spins at. Ugh

Be more specific please. A working can motor like the Mabuchi 365/375/385 motors used in most diesels should be spinning by the time the voltage hits 2VDC and drawing no more than 150ma. I took three out of my motor stash and tested them. They were all running before I got to 2.0VDC and drawing between 110 and 140 milliamps. Also, a minor variation in the performance of the two motors means nothing in actual operation.

A fun fact, after a drop of DeoxitD5 on the commutator of the three motors and they all ran at 1.0 VDC and were drawing less than 100ma. Improved conductivity to the armature really does help!

7/27/2411:35 AM

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