Fluidium Coil (Large one) Displaced

[Modulo '70]

Does anyone know the best way to get the larger of the two coils to sit in place properly?  The coil in my new Fluidium is off centre and I can't seem to get it to sit flat as it gets stuck in the smaller space underneath.

[Modulo '70]

I found a 60 watt Golf Ball and it is working now. Phew!