I am afraid many things cause that. I have seen the difference between set and achieved speed fall out of limits before (Norvegia Team). There it was lack of governor oil. In my case it seems to be associated with being too well oiled but haven't quite got to the bottom of the problem yet.
just be comforted that there is no stable parallel running without droop, there's a conundrum..
__________________
David V
Lord Finchley tried to mend the electric light
Himself. It struck him dead and serve him right
It is the duty of the wealthy man
To give employment to the artisan
|