i was curious how many degrees of margin exist when finding the positions where half the valves can be adjusted,
so i plotted it and it turns out you need to hit the center of a 38 degree window with enough margin so that the camshaft isn't about to hold one of the valves in the set you choose.
at TC on cylinder 1, (top of compression stroke)
cylinders 3, 6, and 2 can be adjusted, then add one turn (360 degrees) and adjust 4, 1 and 5.
the same patters exist for the other possible groupings
cylinders 1, 5 and 3 can be adjusted at 480 degrees, then add one turn to get to 120 degrees to adjust 6, 2 and 4.
cylinders 5, 3 and 6 can be adjusted at 600 degrees, then add one turn to get to 240 degrees to adjust 2, 4 and 1.
that was fun
when i have bent pushrods i gently pound them straight with my favorite hammer, roll them on the steel table to check for remaining curvature.
this service requires me to check the valve clearance because hammering on a push rod makes it longer, never shorter
-s
