After giving this some more thought, the spherical ends would be
beneficial, they would actually result in higher lift.
Mine is a '94, I wonder if these were available on older engines ?
dave
On Thu, 2004-04-29 at 18:12, James J Schneider wrote:
> "Now I'm suspecting that either the cams weren't hardened, or that I need
> to put hardened rockers in?
>
> One thing I did notice is that when the rockers are where you adjust
> them there is an angle between the rocker and the top of the valve, as
> opposed to being flat. This means that there is a very small surface
> hitting the valve when the rocker begins to close, think this could be
> the problem ?"
>
>
>
> I can tell you that the rocker wear pads are extremely hard. Web cam told
> me that Yamaha rockers are much better than Honda rockers. If you look at
> one, you will see that the wear pad is actually a separate piece of metal
> affixed to the cast rocker, and apparently that metal has very good wear
> properties. Web Cam told me that Honda hardens the surface of the cast
> rocker which is not as good. As for the cams, I would think that if they
> weren't hardened, they would wear off on the nose, not so much on the base
> circle, which wouldn't increase your measured clearances. Plus, a common
> method of making aftermarket bike cams is to take a stock core and hard
> nickel weld on the extra lobe material, then grind to size. I THINK that
> this method requires no further heat treatment because nickel hard weld is
> very hard.
>
> All that being said, I have no idea what your problem may be; that is very
> strange.
>
> The bottom of the valve adjuster screw is actually what contacts the valve
> top, and it is machined semi-spherical, so it never sits "flat" on the
> valve top. Maybe I am misunderstanding you.
>
> JEremy
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--
Dave Cramer <dave@xxxxxxxxxxxxx>
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