When you install the yella-terra rocker arms you starve the distributor gear & camshaft gear of very needed lubrication.
To fix that condition the second & third lifters are on either side of the oil hole above the gears.
You can cut a .025" x .025" groove in those two lifters and that will flood the area with the necessary lubrication to prevent scoring of the gears.
Tech article by Bill Ambler billythedistributorman@live.com
To fix that condition the second & third lifters are on either side of the oil hole above the gears.
You can cut a .025" x .025" groove in those two lifters and that will flood the area with the necessary lubrication to prevent scoring of the gears.
Tech article by Bill Ambler billythedistributorman@live.com