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