Oceanic Voyager (Mako) how to get motor out? Help!

So my buddy and I are looking into a few issues on his DPV. We are changing the o rings between the motor portion and the middle ring section. We have it all torn apart and it was going pretty well. We can't however figure out how to remove the motor. This scooter had obviously leaked in the past and we want to get it all apart and clean everything up. We have removed the prop, shaft seal on the bottom end and have the motor exposed on the top end. There is a snap ring visible from the prop side but I am having a hard time believing that this holds the motor in place. We can't see any other fasteners that might hold the motor in place. So if anyone who has done this would care to offer any advice it would be greatly appreciated.

Thanks
Stano

the motor is held in with 2 o-rings and silocon sealer, put a thick towel under the motor and kick the motor out form the inside downward the motor will fall out.

Hi,
I've got few days ago a pair of Farallon MKII in very good shape.
I will need info and spare for them.
Can you advice me about?
I live in the Philippines.
Thanks.
William.
Philippines Rebreather Diving