Post by physlift314 on Mar 8, 2019 11:40:05 GMT -6
I took the head apart and installed new valves. Originally, the compression was about 80 - 90psi in both cylinders. After installing the new valves, I got about 100psi in the left cylinder and about 80psi in the right. I took the head apart again and relapped the valves using the same process for each cylinder. After re-installing, I then got about 120psi in the left cylinder and about 60psi in the right cylinder.
The engine has brand new rings and after each re-installation of the head I set the valves to their largest values according to spec. Any thoughts on why the compression would drop in the right cylinder?