Chris and I are holding some of the mudhole doors removed from the top of the boiler for access to the tubes and firebox crown which is in the cab.  Note the chalk marks which are labels so we know which ones go where.  These have their bottom faces wirebrushed and generally cleaned up before the go back in the boiler, and the Steel gasket is replaced in each one whenever they`re removed.
Chris and I are holding some of the mudhole doors removed from the top of the boiler for access to the tubes and firebox crown which is in the cab. Note the chalk marks which are labels so we know which ones go where. These have their bottom faces wirebrushed and generally cleaned up before the go back in the boiler, and the Steel gasket is replaced in each one whenever they`re removed.
Credit: Chris Perkins, 16 April 2005