4ksq manifold problem

[tturse@ps-b.com (Thomas Turse)]

Hi all.  Just wondering about this little- I hope it's little but  fear it
could be big- problem.  Looks like a bolt that holds the manifold to the
block has snapped.  About two inches of thread visible.  So under load, it
is separating enough to allow exhaust to blow out.  This seems to be the
mysterious engine click I've been experiencing only under load/torque.  Is
this a huge job to have this bolt and seal replaced?  It's not the fifth
cylinder, which I've heard is a nightmare to fix.  I'm taking the car in to
have this looked at on Friday.  Just want to know what I'm in for.

Sincerely,
Thomas C.  Turse
85 4ksq 139,000 (running strong,  just these seemingly endless minor
annoyances!)
tturse@ps-b.com