Hi Kevin,
I find that it's easiest to get all the air out of the sides if you
focus on one motor at a time and move quickly, this means the wax is
hot and not viscous, thus the air moves out easily.
1. add 1/4" wax to pot A
2. add motor to pot A
3. fill pot A almost to the top with wax
4. squish out air bubbles
5. Repeat 1-4 for motor B, then for motor C
6. go back to pot A, fill to a positive meniscus, cap.
7. repeat 6 for motor B, then for motor C
when capping the motors, my rule of thumb is that as long as you have
wax more that 50% of the cover, it's good, (this means that any air
bubble is less than 50% of the cover space, thus, wax comes out the
hole in the cover, not air)
Hope that helps!
Cheers
Sarah