hi i own a chrysler voyager 2.5 diesel it broke a timing belt so i replaced it
now it smokes bad , believe it may have broke a valve rocker but cant remove
rocker cover due to injectors being in the way ,need to remove them so i can replace the broken rockers please please an some one help

 

I don't think we have too many diesel voyagers on this side of the pond... so you may not get too many responses.
Are you absolutely positively certain beyond a shadow of a doubt that you got the timing marks lined up properly when you replaced the belt?
Two things come to mind when I think of heavily smoking diesels... valve timing or injector timing. (poor spray patterns from injectors could also be the cause, but since it didn't smoke heavily before this change they should not be the cause).