Hi posting this as I am getting frustrated with a vintage sunbeam bicycle I found in my fathers garage after he passed away the chain guard had been butchered around the crank I decided to replace the chain guard with a replacement of eBay I removed the old butchered chain guard by removing the crank am now trying to re fit the crank which will not go in I think I need to remove the crank pin but can't romove the hub from the other side as it needs a special tool to remove it can any one help as it's a bit of a puzzle

Do a google search for "bicycle cotter pin tool". Some video search results may help.

Hi,
You have to slacken off/remove the non-drive side bearing cup to allow the axle to be moved back into the bottom bracket shell to give you enough room to insert the chain ring/crank assembly into the chainguard. The problem is the 'new moon' oil-splash feature at the bottom of the large opening wherein the chainguard round cover (adjacent to the crank arm) goes. It's there to prevent oil seeping out from the 'Little Old Oil Bath' when you're moving and the oil clings to the chain as it whirls around the chain-ring. Unfortunately this crescent shaped plating makes the opening slightly too small to allow the crank to slide off and on directly with the axle in place.
Don't forget to repack the bearing with new grease and place the circular cover over the crank arm before you insert the chainring into the chainguard housing/