camshaft

[Theo Thepen <thepen@pi.net>]

Hi
As I'm back, why not also ask something.
I know the gear of the camshaft comes in different sizes, indicated on 
the back of the gear by -5...0...+5. I bought a new gear for the 
crankshaft and a brand new camshaft. Guess what..., it doesn't fit, too 
large. Why are there different sizes ??? I thought that if the gears 
wore you could fit a larger one like +1,+2, etc. to compensate the play. 
Apparently it doesn't work that way. Maybe it differs between individual 
cases.
Has anyone got an answer to this and more importantly, how does one know 
which one to get. Trial and error is one way to go but as it was pretty 
hard to find one (old style with three rivets for old style, smaller oil 
pump) not the easiest way to go.
Cheers,
Theo