I'm of the belief that the pushrod expands in length more then the other factors and that's what primarily tightens the lash....but i could be completely wrong?
Wonder if any one has done a experiment heating a pushrod form say 70 deg. up to about 250 and measured the difference in length?
Just bench racin'.......great posts guys.
P.S. Steel expantion was also referenced in Post #16. Sorry Redfish, i should have mentioned your post.:smile: