Valve lash, CR pushrods / Crusty method Options

[rfinegan]

Is it me, or does using the crusty method to adjust the valve lash on anything but a stock cam difficult with overlaps found in Larger Web cam?

Zero Loose gap=no play but can still turn the pushrods or Elephant feet rocker tips
I still let a little ticking if both valves are not “rocking” perfect?

[VaccaRabite]

I've never had an issue, and I used a lopey cam on my 2056 with elephant feet and cromo pushrods.

Since the same cam lobe activates 2 lifters (each 180 degrees apart from each other) if one lifter is on cam at all, the other is off. The are 180 degrees out of phase with each other. Its impossible for both to be on cam at the same time.

Think about it this way. The cam lobe is not bigger then the base circle. Which means that even if the cam lobe was a cam rectangle, both lifters would still be off cam at 0* and 180* (when the cam lobe was point directly up or down).

Even on cams with a reduced circle base for stroker engines, this is done to clearance the crank, not the opposing lifter.

Ergo - even on big cams - the method works.


Zach