Problem with lash closing up

[ss3011]

Originally Posted by slick5861

Shaft rockers do have a torque setting when checking valve lash. Had a friend this summer setting the lash at the track. He says the lash was tightening up on the intakes. As I watched him, I noticed he was really over tightening the adjustors. I borrowed him my LSM torque wrench, preset at 24 ft. lbs and problem fixed. He was shocked because he has been setting them that way for years. Just a thought.

These shaft rockers are Harlan Sharp which have been on this engine for the last 4 years without any problems . They are tightened by hand , but not crammed down and the final adjustment is checked after the lash adjuster is tightened . We have a lot of experience using these rockers , and never had this problem . So that is why we are asking if other folks have had this problem . BTW , why would over torqueing the adjuster nut cause the lash to close up ?