Harley Milwaukie 8 to require Valve Adjsutment?

[Du-Rron]

Harley Davidson Milwaukie 8 to require valve lash adjustments?

 

The new Harley Davidson Milwaukie 8 engine uses four valve heads with pushrods and forked rocker arms operating the valves and a hydraulic valve lash adjuster located at the bottom of the pushrod riding on the cam. This is similar to the Yamaha Stratoliner/Roadliner/Raider 113cuin engine.

 

Even though the Yamaha engine also has "hydraulically adjusted valves", you must still take the thing apart and adjust clearance between individual valves located on the same rocker. This adjustment is provided by a screw and locknut method.

Looking at the Harley engine, it appears no method of adjusting the lash between valves located on the same rocker is provided for, since there is no screw and locknut located on the rocker.

 

Will the Harley require manual valve lash adjustment between valves located on the same rocker? Will the 30,000 mile service require Harley to sell you a Stage 1 kit that will replace the solid roller-rocker with one that has screw/locknut arrangement to provide for valve lash adjustment?

 

Am I looking at this right?

 

New Harley Top End

 

 

 

 

Yamaha Valve Adjust Method

 

Edited September 8, 2016 by Du-Rron

[WildBill1]

Harley Davidson Milwaukie 8 to require valve lash adjustments?

 

The new Harley Davidson Milwaukie 8 engine uses four valve heads with pushrods and forked rocker arms operating the valves and a hydraulic valve lash adjuster located at the bottom of the pushrod riding on the cam. This is similar to the Yamaha Stratoliner/Roadliner/Raider 113cuin engine.

 

Even though the Yamaha engine is also has "hydraulically adjusted valves", you must still take the thing apart and adjust clearance between individual valves located on the same rocker. This adjustment is provided by a screw and locknut method.

Looking at the Harley engine, it appears no method of adjusting the lash between valves located on the same rocker is provided for, since there is no screw and locknut located on the rocker.

 

Will the Harley require manual valve lash adjustment between valves located on the same rocker? Will the 30,000 mile service require Harley to sell you a Stage 1 kit that will replace the solid roller-rocker with one that has screw/locknut arrangement to provide for valve lash adjustment?

 

Am I looking at this right?

 

New Harley Top End

 

[ATTACH=CONFIG]107285[/ATTACH]

 

 

 

Yamaha Valve Adjust Method

 

[ATTACH=CONFIG]107286[/ATTACH]

I'll stick with my twin cam 110's engines with S&S adjustable push rods and high output oil pumps.

[djh3]

Hmm My 105 Victory dont have that problem. Looks to me like the Motor Company is just thinking ahead. Kind of like motors in the past with hyd lifters. They run 30k or so. Then you tear down the top end, cut the push rods and put in adjustable ones, sold of course by Flaming Eagle or whatever it is. Shoot they just rot fined a couple million for selling non-epa legal stuff so got to make up the difference somehow.