That small spindle that is fitted to the end of the inlet cam to turn the distributor is set in a rubber-like compound. It can be removed by giving it a good wiggle in a vice. So why is it mounted in that rubber compound?

I'm looking at using a VVC exhaust cam as an inlet cam and I need to fit that distributor drive spindle. Looks like I could turn a thread onto that spindle's shaft and screw it in with some locktite... Just need to turn the cam in a lathe to remove about 1.5 to 2mm of that end and maybe drill the cam pulley bolt hole a bit longer and thread. Any reason/s why I couldn't / shouldn't do that?

Alternatively I could machine the cam shaft end to accept a replacement ]new] spindle.

The rotor arm spindle was attached with rubber, but I don't really know why, unless it was to help reduce vibration between the cam and rotor arm itself?

As long as you can install it in the new cam so it's in the correct position in relationship to the cam (maintained correct timing), and it's running concentric with the cam centreline, then I can't imagine it makes much difference what attachment method is used.

Thanks - I was thinking it probably wouldn't matter save for matching the correct position.