First off you can see they used the wrong sealant on the timing cover. The instructions are very clear that it’s mandatory to use Threebond 1217H which is gray not black. If they ignored that part of the instructions then what else was ignored.
Do you have any more pictures?
Be sure to add your dad’s car to the registry here:
http://www.ft86club.com/forums/showthread.php?t=133095