Originally Posted by moparacer
Originally Posted by clovis
I was reading the instructions for the summit brand set and it said the idler gear (small gear) should have .005-.0075 vertical movement. Measuring as shown in the picture the lash is virtually nil and there is no vertical movement.


Nope that won't work.zero clearance at any point bad things will happen most likely.

I would put a chain on it.


The dual idler gear floats. Push one idler gear tight into crank and cam gears and then measure the vertical movement at the other idler gear. If there still is no movement then perhaps your block has been line bored which moves the crank up a few thou.

In theory, there is no difference between theory and practice. In practice, there is.