2006 S80 Maybe bent the valves

[Earn_est_89]

Recently my water pump went...which made my timing belt slip... i bought the kit my friend installed it with new pump, tensioner, pully and all that good stuff but he says when he was turning it over to align the timing it got stuck.. is it because the valves are bent when the t belt slipped or he didn't do something right like setting the tensioner to cold???