Hot Rod Forum banner
1 - 1 of 1 Posts

·
Registered
Joined
·
450 Posts
I would contact Morel and ask them how much travel your lifters plunger has? Here is something else to consider. A person with a 3/8-24 thread stud will move 1/24 of an inch when tightened one full turn. A person with a 7/16-20 thread will move 1/20 of an inch with one full turn. 1/24=.0416 1/20=.0500

So when a lifter manufacturer tells everyone that they should use say 1/2 of a turn, there is already a .005 difference depending on the stud being used. Then that is amplified by the distance from the adjuster pivot point to the pushrod. Again, I would contact the manufacturer and ask what the total travel of the plunger is and then experiment some more. Hydraulic lifters should not be noisy in a mild street engine. One other thing to consider is whether the studs themselves may be flexing. Had a fellow on another site who chased a problem and when he added some stud girdles, everything was solved.
 
1 - 1 of 1 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top