This is the type of genie, the unloading valve on mine. http://www.tool-net.co.uk/p-349065/clarke-1-2-bsp-pressure-unloader-genie.html
there £1.50 cheaper at machine mart thats the one i mentioned in earlier post/ re amend that price the robbers are charging £71,98mind u toolnets £6.95 deliverythink I might go for a 4" pulley then , that gives me 1200 rpm at the pump with engine at 3600rpm ,
also will get one of them genie's from your link
cheers
there £1.50 cheaper at machine mart thats the one i mentioned in earlier post/ re amend that price the robbers are charging £71,98mind u toolnets £6.95 delivery
Those pumps suffer the head gaskets going between the inlet to pressure side the bridge piece pops out then then take for ever building up pressure then either seize a piston or burn motor out. Just might be worth checking I have made gaskets out of copper but leave the bridge piece wider into the inlet side to keep it cooler and stronger.