Cam end float

[MaurieG]

Morning Guys!
I seem to remember, a few years ago on here, a member posted the modifications he had done to his motor (a GS750 iirc), to positively locate the cams, and eliminate most end float. The tap tapping was annoying him! I've tried to find his thread, but failed. Anyone remember it, or know how to find it???

 

[fastbysuzuki]

Look and thou shalt see http://members.dslextreme.com/users/storagecliff/images/cam_end_float_mod.pdf

 

[jsandidge]

I think this is the thread you are referring to.

http://www.thegsresources.com/_forum/showthread.php?240997-Cam-walk-options&highlight=cam+and+walk

By the way, I just did this mod on my 850 since I was refreshing my top end anyway. It's nice and quiet now.

 

[uk gs nut]

This mod still works fine on my 750, the text is in one of those links.
https://www.thegsresources.com/_forum/attachment.php?attachmentid=46519&d=1468573882

 

[chuck hahn]

So is there a recess milled into the cap to accept the shims?? Anyone have picture of that with a said shim resting in a cap??

 

[bwringer]

So is there a recess milled into the cap to accept the shims?? Anyone have picture of that with a said shim resting in a cap??

There are a couple of good pics in the PDF file.
http://members.dslextreme.com/users/storagecliff/images/cam_end_float_mod.pdf


My GS850G (truth be told, most of the engine is actually from a 1981 GS850GL) makes gawdawful cam walk noises when it's in between cold and fully warmed up, and has for many thousands of miles.

I've invested in quality ear plugs.

 

[uk gs nut]

I just made the cam cap end square to the head surface, the more material removed from cap the thicker the brass shim. Of course you need the valves out and the other caps nipped down. I used a dial gauge to check end float, about 2 thousands of an inch.