V2 gearbox motor hole
 

My question is -Are the holes in v2 gearboxes standard ,where the motor inserts ? Not location of course ,but size. Correspondently are the long motor shafts a standard size?

Yes.

Sometimes it is a tight fit and the hole can use a bit of filing to open it slightly.

Thanks for the answers, the problem is too much play.

The size of the hole should affect play in the motor. There shouldn't be any play in the motor.

What's your problem exactly?