Did you turn the motor over by hand before installing it? Did you 
set the end-play?Must do this if you changed flywheels.

On Thu, 18 Jul 1996, David Preston wrote:

> This is on a '72.  I managed to put a valve through my piston so I was
> afforded the oppportunity to put a new engine in.  I got a 2000cc from a '78. 
> I took the fly wheel of of the '72 (1700cc) and put it on the 2000 cc. And put
> it in with minimal trouble.  I tried to turn it over tonight and it seems to
> have jammed on something. You can hear the starter work but nothing happening.
>  Now I can not even turn it over by hand.  Please help me make this nightmare
> end.  Any Idea what's up? Please E- mail me directly. 
> Thank you
>  david
>