Originally Posted by
Goingfast
Question
Can I retard the timing on these motor?
Where is the zero timing mark?
I took a few measurements already...
The factory setting (middle of the slot) is at a true 30deg timing, what most other manufacturers call zero.
Fully retarded on the endbell is -10deg from that, fully advanced is +10deg from that.
For some reason SP have marked the endbell to give the impression that the range is only from 0 to 10, with a default of 5. That is clearly wrong as there is 20deg movement in the slot.