Most of my small block builds use a solid lifter, and adjust with feeler gauge no problems.
This 409 with hydraulic lifters and fixed push rod tubes, solid tappet cam is a little different, you almost need touch and feel prior experience, (lacking that)
So I looked at a crap load of You Tube video, but it does not and cannot tell you what to feel for, need some old school help here.
My interpretation is this:
Going to go through two complete revolutions of the Crank for sure. but as I tighten the nut on the rocker, I am tightening until I get slight drag on the left/right/spin of the tube, some say that is wrong, you do not care about friction as much as up/down free play at the rocker/valve location.
Some say when there is no up/down that's zero lash, some say when it barely spins while correctly seated in the the cups of the rocker and lifter.
My lifters were not pre-soaked so I can truly depress the springs in the lifter, not the valve, After I have made one full revolution of the crank and I am adjusting them accordingly, but I notice some now have no movement now, and the fear is obviously bending a push rod (I have spares) so does that mean as I turn the crank 90 degrees at a time and I find some push rods that will now NOT spin, I need to back those off, or is that the idea to get them where they are bound with no spinning?
What is a proven method on these 409's
appreciate the help as usual, thank you.
This 409 with hydraulic lifters and fixed push rod tubes, solid tappet cam is a little different, you almost need touch and feel prior experience, (lacking that)
So I looked at a crap load of You Tube video, but it does not and cannot tell you what to feel for, need some old school help here.
My interpretation is this:
Going to go through two complete revolutions of the Crank for sure. but as I tighten the nut on the rocker, I am tightening until I get slight drag on the left/right/spin of the tube, some say that is wrong, you do not care about friction as much as up/down free play at the rocker/valve location.
Some say when there is no up/down that's zero lash, some say when it barely spins while correctly seated in the the cups of the rocker and lifter.
My lifters were not pre-soaked so I can truly depress the springs in the lifter, not the valve, After I have made one full revolution of the crank and I am adjusting them accordingly, but I notice some now have no movement now, and the fear is obviously bending a push rod (I have spares) so does that mean as I turn the crank 90 degrees at a time and I find some push rods that will now NOT spin, I need to back those off, or is that the idea to get them where they are bound with no spinning?
What is a proven method on these 409's
appreciate the help as usual, thank you.