Wab Cylinder Block Repairs

The orginal drivers side cylinder block developed leaks and needed to be replaced in 2010.

Replacement block is bolted in place and waits for pistons and valves to be fitted.

The bore for the piston.

The bore for the valves.

Engine casting showing the cross head.

The slippers waiting to be bolted onto the cross head on the firemans side. The slippers keep the pistion straight and aligned when working backwards and forwards inside the engine unit.

Valves waiting for the rings to be fitted and awaiting reassembly.

These are the two valves, one for each side. The new assembly shown above needs to be bolted on and the rings fitted. They go backwards and forwards, although the amount they move is controlled by the forward reverse lever in the cab. The amount they move controls the amount of steam is used in each stroke.

Back to Wab794 Restoration and Maintenance

	Replacement block is bolted in place and waits for pistons and valves to be fitted.
	The bore for the piston.
	The bore for the valves.
	Engine casting showing the cross head.
	The slippers waiting to be bolted onto the cross head on the firemans side. The slippers keep the pistion straight and aligned when working backwards and forwards inside the engine unit.
	Valves waiting for the rings to be fitted and awaiting reassembly.
	These are the two valves, one for each side. The new assembly shown above needs to be bolted on and the rings fitted. They go backwards and forwards, although the amount they move is controlled by the forward reverse lever in the cab. The amount they move controls the amount of steam is used in each stroke.