The heater controls  in my '84 Westy don't work so good. The one
controlling the heat exchanger is stuck on due to a bend in the wire
near the lever, and the top one, whatever it's supposed to do,
doesn't do anything. How much of a PITA is it to replace these or
take them out and lubricate them? Do you have to pull the fascia/
dash? Is there some way to get the black plastic knobs off the
control levers and then get the cover plate off? Other suggestions?

Thanks for any advice,

Geza