Who makes Screamin Eagle tappets?
New Screamin’ Eagle® Tappets (P/N 18572-13, $249.95) from Harley-Davidson® Genuine Motor Accessories® are designed to deliver superior tappet life in high-performance Harley-Davidson Twin Cam and Sportster engine applications.
Are there adjustable pushrods on a Harley Davidson Evolution?
All Evolution models come from the factory with solid pushrods. There is no adjustment. If you have adjustable pushrods in your m/c, you have to try to determine the manufacturer of the pushrods so you can search for the correct adjustment procedure for that set of pushrods.
What’s the best way to adjust a pushrod?
Adjust the pushrods Bring pushrods to Zero lash, no up and down movement, tight against rocker arm, and tight against tappet/lifter. Mark the pushrod with a marker or paint stick. Extend the pushrod (4) four full turns or 24 flats (if using S&S Pushrods, S&S pushrods have a 32 Threads per inch)
What happens when you shorten the pushrod?
While shortening, you will feel the valve spring release the pressure on the pushrod. When the adjustment is correct, you will again be able to spin the pushrod with your fingers. The pushrod must spin freely. with NO up and down movement. From this point you want to shorten one full turn, 6 flats.
Can you spin a pushrod with your fingers?
When the adjustment is correct, you will again be able to spin the pushrod with your fingers. The pushrod must spin freely. with NO up and down movement. From this point you want to shorten one full turn, 6 flats. Lock down the pushrod and repeat for the rear cylinder. DO NOT TRY TO MAKE SHORTCUTS IN THIS PROCESS.
All Evolution models come from the factory with solid pushrods. There is no adjustment. If you have adjustable pushrods in your m/c, you have to try to determine the manufacturer of the pushrods so you can search for the correct adjustment procedure for that set of pushrods.
Adjust the pushrods Bring pushrods to Zero lash, no up and down movement, tight against rocker arm, and tight against tappet/lifter. Mark the pushrod with a marker or paint stick. Extend the pushrod (4) four full turns or 24 flats (if using S&S Pushrods, S&S pushrods have a 32 Threads per inch)
While shortening, you will feel the valve spring release the pressure on the pushrod. When the adjustment is correct, you will again be able to spin the pushrod with your fingers. The pushrod must spin freely. with NO up and down movement. From this point you want to shorten one full turn, 6 flats.
When the adjustment is correct, you will again be able to spin the pushrod with your fingers. The pushrod must spin freely. with NO up and down movement. From this point you want to shorten one full turn, 6 flats. Lock down the pushrod and repeat for the rear cylinder. DO NOT TRY TO MAKE SHORTCUTS IN THIS PROCESS.