[Supras] Mystery O-ring +spark plug wire question

[berniek at technicaldevelop.com]

Jim, Nick and group:

    The O-ring in question finally turned out to be for the oil filter 
adapter (turbo engine).  There is another small section ring of about 
the same diameter as the filter adapter ring.  Still need to find where 
that goes as the final aspects of the engine go together.  This whole 
rebuild was much more complex than the Chevy big block I did some years 
ago. 

    Also, I intend leaving the spark plug cover off, so I can see if the 
center well fills with oil or coolant.  Has anyone had a problem with 
vibration loosening the plug wires without the rubber detents in the top 
cover?

    Thanks.

       BernieK