Beowulf,
My 80 is a 93 with 227k on it.
I will try and get in tomorrow and clean around the plug and snap some shots.
I have been doing some reading on the block heater installs - hard to understand are these holes and plugs threaded?
For the last few weeks I have been monitoring a slow leak of antifreeze that has been accumulating in a crusty form on the side of the block just below the oil filter - near the block drain. I had assumed it was the PHH and went in to replace this last weekend, however as it turns out the...