Ha ha yes just to get the effective area of the piston


The pullstud/taper were tight and dont think there would be any air pockets as I filled from the gauge end and had to bleed off pressure to get the needle to zero.
Regarding the pullstud being pulled out, I would imagine it has to be or there would be no compression of the piston.

I will see if I can work out a way to test the setup, should be relatively easy if I can get something of known weight, suppose really all I need is something around about 200Lbs to see if the gauge shows the same as it did in the spindle.

Hood