Just put fresh heads onto an 87 Syncro:  slight resurfacing
with JB weld on head mating surface, replaced all cylinder O-rings,
new piston ring set, valves lapped.  Engine is running great except
running very hot- I think the radiator is clogged with the corroded
junk I drained out of the system at engine removal (nasty mocha
colored oil/coolant mix in both the engine and water lines!)  and
there is coolant leaking out of the exhaust, both splattering out of
the tailpipe and leaking from a couple of the joints in the
collector.   Also- a hissing leak-type of sound can be heard coming
from the left head, but nothing is visible.  The right head seems to
be fine.

        I'm guessing the left head may have a crack that I missed,
but are there other possibilities?  Poor sealant job on a head nut?
could the leaking be caused by too much pressure in clogged coolant
system?  I'm still flushing out lots of junk so I can't tell if there
are combustion gases in the water....  any other theories will be
much appreciated..  Aloha-

Shawn
--
Volkswagen camper rentals in Hawai`i

  Imua Camper Company
http://www.imua-tour.com
45 Shipman Street, Hilo HI 96720
  Reservations:  admin@imua-tour.com  -or-  1(877)773-4682
Hilo office (phone/fax)  1(808)935-6241