Hi, finaly i did all the test on my mercruiser 4.3l and got cylinder 1 and 5 with 120LBS cylinder 3 105lbs, everything looks good until now but got to the starboard, cylinders 2 and 4 30lbs, cylinder 6 0lbs. i did filled with wd40, and seafoam after to loose any ring that could be stocked with...