Post by johnharkness on Apr 19, 2005 19:22:42 GMT
Hello all,
I have been working on my 3 1/2 gauge 'Doris' black five for quite a few weeks now. The problem now is when the regulator is opened there is a continous roar up the chimney. I have had the piston valves out and they seem a tight fit in the bores, is it possible to fit 'o' rings to these or would they be dragged out when passing the ports or could the valve timing be out or the length of the piston valve be wrong any suggestion on timing these please. John
I have been working on my 3 1/2 gauge 'Doris' black five for quite a few weeks now. The problem now is when the regulator is opened there is a continous roar up the chimney. I have had the piston valves out and they seem a tight fit in the bores, is it possible to fit 'o' rings to these or would they be dragged out when passing the ports or could the valve timing be out or the length of the piston valve be wrong any suggestion on timing these please. John