Hey, thanks for your reply.
Ah, just checked the photo of the model and yes, i missed a digit, damn it!
If that's the only way as you say, seems absolutely illogical and frankly very stupid, if the belt could go through that gap there'd be no need to remove the pulley(s) off the shafts.
Can see that loosening four engine bolts to slightly move the engine wouldn't be difficult
Anyway, damn it, will go back and see what i can do
Thanks Star Tech.
Cheers
F.K