Changed water pump now won't start

My boyfriend took on a job he fully believed he
could do. A very good friend of ours has a 2011
Ford explorer 3.5 she told him she has antifreeze
on her driveway he diagnosed it as bad water
pump, which is internal. He worked on this thing
for a few weeks due to his full time job keeping
him limited on time he got everything off which
was A LOT! Got the timing chain where it was
supposed to be to get it off he locked there cams
and everything else that was recommended to do
when changing water pump. He changed timing
chain ect... He got everything back together the
darn thing is having a very hard time starting. He
cranks it over and over and eventually it'll start but
it only runs for a few seconds. Can someone
please help. Btw the lady who owns the car is a
very important person. My boyfriend is close friend
with the mayor in our small city and she is his
executive assistant someone please help!!!