Where are the rocker arm tips on a valve?
The Airheads have …to some extent, assuming proper alignment …rocker arm tips that are offset where the rocker arm tips contact the stem of the valve. The rocker arm tips, being offset as they ‘wipe’ the valve tip, tend to rotate the valve, adding life to the valve and valve seat.
Do you need to torque the rocker arm nuts?
The cylinder head (2 nuts) and rocker arm nuts (4) need the rare torquing too….yes….once the break-in period is completed (perhaps 5000 miles), the 6 nuts need be loosened SLIGHTLY, then re-torqued, ONLY RARELY. DO NOT torque over 25 ftlbs on a known good torque wrench!
How to adjust the rocker arm end play?
Adjustment of the end play by the movement of the rocker blocks (lots of adjustment is available on the /5, still usually some small amount even to 1984, after which it is done by shims): The rocker arm must be able to move (rotate in its normal movement direction) full rangewithout any binding, yet have minimal up and down play.
How much torque do I need to tighten the lock nut?
Tightening torque (lock nut) 20—24 Nm {2.1—2.4 kgf·m, 15—17 ft·lbf}. Turn the crankshaft one full turn and measure the remaining valve clearances. Adjust if necessary. Install the cylinder head cover.
The Airheads have …to some extent, assuming proper alignment …rocker arm tips that are offset where the rocker arm tips contact the stem of the valve. The rocker arm tips, being offset as they ‘wipe’ the valve tip, tend to rotate the valve, adding life to the valve and valve seat.
How to remove stock rocker arms on m-6564?
Step 1:Remove valve covers. Rotate engine to number 1 cylinder TDC. The distributor rotor should be at the number 1 terminal. Step 2:Remove stock rocker arms, fulcrums and bolts from number 1 cylinder. Clean pedestal mounting surface. Remove pushrods; clean, oil and reinstall. Make sure the pushrod is in the lifter seat.
How do you Torque a roller valve roller?
Thread the bolt into the cylinder head. Repeat the process with the other rocker arm. Step 5:Turn the bolts by hand until there is no clearance between the roller and the valve stem (make sure the pushrod is seated in the rocker arm cup). Slowly torque the bolt to 18-20 FT-LBS.
What should torque be on roller rocker arms?
Slowly torque the bolt to 18-20 FT-LBS. Since you are pushing down the plunger in the hydraulic lifter as you torque the bolt, it will probably take a minute or two to complete the procedure. The bolt should have turned between one-quarter to one full turn to reach the torque setting. This will give the correct lifter preload of .020″ to .060″.