I tried a few different orientations of the 2 bolt holes on the cam sprocket and ended up where I started. I was not able to get opening to start at 31 BTDC and end 71 ABDC with 0.013" of lift. However, when I used the 0.005" before and after max lift and averaged those angles... I came up with 108.5 degrees. Then I took the degree values at 0.013" of cam lift (before and after) and applied Glen's formula and again came up with 108.5 degrees. That tells me that I have found the max lift and set it at an acceptable position.
I understand that a few degrees of advance may improve low end torque... more importantly, when the chain stretches, I should end up close to the 110 ATDC spec.
Thanks to all for the help. I feel much better now.
Doug L.
Doug L.
--Previous Message--
: "The indicator extension sits inside
: the bottom of that lifter."
:
: OK but inside the tappet is concave, so
: ANY misalignment will reflect in the
: readings to some degree.
: If the numbers don't come out right
: when you check it or you don't get
: repeatability, this is where you might
: first look as a cause.
: Try it and see what you get.
: Glad it's making some sense!
: Glen
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