PM sent.

I have just dismantled my set , the spring wire is 106 to 110 thou diameter , 1+3/8" or 1325 thou outside diameter , 8" long , with coil pitch of 1/2" or 2 coils per inch , and closed ends .

Thanks you

Hi Chris, I am looking to make a guvnor valve for Ben Lomond as it is currently missing. I am looking for a drawing for a 7nhp compound. However my guvernor itself is complete and if it is the same as what you have I can send photos? Cheers. Matt

governor valve
 

Hi Matt PM sent

Hi Matt
I think the compound and single cylinder engines are different but thank you for the offer the photos
Chris

I have PM'd you Chris interested in a spring maybe 2.

Hi all

Alan has done some amazing drawing for me (Very much appreciated)
his engine is the earlier design, I have noted the pulley on the cross arm is different to the later design, the earlier type seam to have "sides" to keep the belt on and no crown, the late type has no sides and a crown,
Am thinking the later type is going to be the same diameter as the old type just minus the sides?
Can any one tell me the diameter of the pulley on the late type of pulley

Thanks for help Chris