I finally go that cover off the heater. I couldn't get my saw blade into
the slot and would up haveing to unbolt the rear seat to get at the
cover and get it off. BUT, got it done.

Now I discover a couple of weird things about the new valve.

First, there was no seal in the box. Is there supposed to be a seal that
fits into the groove???
Secondly, when I operate the new valve through it's range, I note that
the hole goes from closed completely to a tiny opening about 1/4 inch or
less. Does't that valve supposed to open and provide full flow through
the valve? There is no way for that to happen the way this new one is
put together. Maybe I have a faulty valve, assembled incorrectly at the
factory???

Commentary is invited.

TIA,

John Rodgers
88 GL  Driver