Had the same problem after my rebuild.  I had the timing 180 out.  easy to
do and worth checking.

Pete
peterz@hawaii.rr.com
83.5 Vanagon

>Try backing off your valve adjustment until they just touch.  Not try to
>start the motor.  I usually do this when I put a motor back together.  Run
it
>like this for a little while (couple hours at least) until the lifters pump
>up.  Then readjust the lifters to One full 360 degree turn.  Should be good
>to go after this.  These hydraulic lifters can be tricky.
>
>Bought a van for dirt cheap from a guy last year because he had done the
head
>gaskets and then couldn't get the motor to run.  All of the push rods were
>off center in the lifters.  I loosened everything up, centered the rods,
>adjusted her up and she started on the first try.  Ran great for over a
year
>until I just sold her.
>Ken Wilford
>Van-Again
>John 3:16