i have good compression on the 1st 3 cylinders after doing the valve adjustment by the book. the 4th cylinder doens't have any? I adjusted it just like the book said and moved the crank 1 rotation and adjusted the other valves. the book says with #1 cylinder in firing position adjust both #1 cylinder valves and #2 intake #3 exhaust and #4 intake, rotate the engine 1 revolution where # 4 is in firing position and adjust #2 exhust, #3 intake and # 4 exhaust???? leak down test show perfect on # 4 also?? what am i doing wrong???
