> > I'm getting ready to mount the oil pan (also using

 > >RTV), but if my upper seal might be compromised, maybe I should go
 > >through the painstaking task of separating the engine from
 > >the aluminum spacer and re-sealing it, using alcohol, etc?

 Paul C, Yes take it off and clean the sucker. I would say no but
 antifreeze is bad to get on anything except the inside of the
 radiator and engine water passages.
 A sandwich plate mount will move around a bit and you don't
 want leaks. One of the keys to using any gasketless system is to be
 sure the areas are FLAT, clean and bolted up evenly. Also if
 using RTV be sure to apply a THIN EVEN FILM, not a huge bead. The
 RTV that oozes out can break off and damage pumps and clog
 filters if applied too heavily.
 Bill Jepson

   Don't use RTV use Permatex ultra blue if you use silicone sealer
but better yet there is a better sealer sold by Yamaha called
Yama-seal and a generic version can be found at cycle shops, I
believe this is a urethane based sealer.
  I don't like the idea of the sandwich mount as I have fought oil pan
leaks and the thought of mount sandwiched between it sounds like more
leaks.
  Also I have found it best to run without a gasket.

  Ken Welter

 
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