Breaking out old, worn, cylinder liner

Piston head turned down to new size, rod skimmed

Checking to see if new liner will fit into cooling bath

Generously proportioned volunteer modifying bath to accomodate new liner

Liner in bath of liquid nitrogen

Frozen liner being hoisted into position

Relief all round, liner in place and starting to expand

Liner expanding to make tight fit in cylinder casting

Piston ready to be installed

Piston in place at back of cylinder fitted with new liner. Steam passage visible at front top

Hammering piston cotter into crosshead. JG checking that it has entered far enough to fit the safety cotter through the end of the main cotter

Valve head without rings. To be decarbonised

Valve head, decarbonised, rings fitted. The rings are jammed in place with slips of paper to hold them in the grooves until inserted in the valve liners. The paper soon goes when steamed

Valve liners being honed to remove "barrelling". The ends are carborundum stones

Valve head lifted ready for entering

Valve being inserted. Care is needed to get the back head through and beyond the front valve liner and into its own liner at the back of the valve chest - hence the bits of paper

Side rod ends ready for NDT

Return cranks ready for NDT

Ultrasonic axle testing

Ultrasonic OK, were told by the expert

Measuring tyre and flange wear