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123 Posts
Tac, the GIMRA agm is next saturday, the Valve gear is simple Walschaerts, which is used without any lap or lead and represents the valve gear for driving a Piston Valve, but is actually driving a slidevalve, hence the crank being the other way round, on my scratch built K27's I used a reverse port plate to get the valve gear looking right and included the corect combination lever and union link so that the slidevalve can be notched up, the new Countess also uses the simple valve gear to drive a slidevalve. David Bailey www.djbengineering.co.uk
