All of the boiler tubes have now been expanded with the exception of the firebox end of any tubes adjacent to the large flue holes incase the holes distort before the flues are fitted. You can also see in this photo the ends of the tubes flared. This is the first stage before finally forming the beading.
All of the boiler tubes have now been expanded with the exception of the firebox end of any tubes adjacent to the large flue holes incase the holes distort before the flues are fitted. You can also see in this photo the ends of the tubes flared. This is the first stage before finally forming the beading.
Credit: S.Masters, 12/2/17