Ok guys I dont have A dial indicator nor the means to set one up the best I can do is use a dowel and move the piston up to the top put my degree wheel on and rotate it back and forth and see how much it moves in both direction before the piston moves and devide by two so lets say the it moves 4degrees ccw before the piston moves and rotate it backto 0 and rotate it cw say4 degrees before the piston moves this is where I thing I am messing up should I add or subtract 4 degrees to 28 derees michael</p>