I took some photos - just got to figure out how to upload them. I think I have put the cart before the horse and have everything stripped apart except for the left side plate (looking forward), the front roller, the reel and the rear roller. Just to confirm, I should tap the cog with a piece of timber on the front side of the shaft (looking down)? It's not a reverse thread - just standard? I gave it a tap with a bit of timber and a hammer and it didn't give any. Are the normally stiff? Cheers fellas.