Thanks Deejay,
I was looking at the Morrison mowers for replacement parts if necessary as the 16 morrison seems to be a rebadged victa? ill also have a look at the ransomes mowers as I havnt looked yet. I was going off this picture from Gumtree in SA as a reference, seems to have the same cross handles and a Kirby engine? does have a split blade though, i think mine might have a morrison replacement.
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Grumpy,
that bolt '36' screws into the end of the drum roller shaft with a washer on the front of the sprocket, ill take a photo tonight when i get home from work, would this suggest it might infact not be a reversed thread and I've been trying to go the wrong way? damn i would feel like a goose then hahahaha