The funny thing is that the oil pressure sender was... gounded to the engine...

This guy didn't have any warning at all, part of the rod went INTO the air
plenium and another part INTO the engine bay cover... and made a hole!

Now, i found out that a bore hole plug is missing!!!!! ok, for you guys that
don't know what a bore hole is: when the engine was built, they drilled hole
in the engine for different reasons (another story...), after that, they put
a press-fit plug to fill that hole, now, after 20+ years, some plug are
getting loose and tired... when i see a major leak on those hole, i clean
them and put JB's or Aluminum puty .. the old plug could be remove and a new
one (tap) could be install, but the price is way higher.

Hole plug are in the center, you see 2 on that picture:
http://www.benplace.com/heads2/housing_fan4.jpg

Same plug with JB's
http://www.benplace.com/heads2/housing_fan3.jpg

me, i had oil up to my nose... he he he.

Later