Valve shim tool - can't get it to do its job....

[FJools]

I posted this on another thread but though it best to give it is own topic:

today I had a go at the valve clearances on my 92 3XW.

All is good until I come to use the special tool I got from RPM. No matter how I install the tool (and I tried several times) it won't hold the shim bucket down enough to get the shim out when the cam lobe is rotated out of the way after holding the valve open to install the tool.

Is there a trick to using this device ? it seems simple enough but it appears not to be doing its job............??

[Arnie]

See reply to your 'other' post about this.

Arnie

[FJools]

All sorted

amazing how easy it is once you get the "feel"

I was surprised how many "odd" sizes there were in there 268, 272, 278..........at least I now know I can the clearances closer to the nominal.
Just gotta find those sizes I need.