y-block timing gears

[henry8]

I am in the process of putting my 1957 292 back together after a refreshing and the timing gears/chain is next. Should the gears slide onto the shafts easily or should there be resistance. Mine slide on easy about half way then stop cold. The cam is new and the crank is original. Also, how far do the gears get pushed on. I'm used to small block fords, these y-blocks are a different kind of animal! Thanks for any help in advance.