Just another tidbit -- I have for a long time experienced long-blinking
coolant light, especially in damp weather.  From the schematics in Bentley,
I've become convinced that the difficulty primarily resides in the
temperature gauge itself.  A few days ago I swapped my panel out with the
'85 b/c I wanted the tach in the Westy; and immediately the blinking LED
returned to normal behavior.  This tells me that in my case the trouble was
indeed in the gauge.  When I get around to putting the other panel in the
'85 I'll tell you if that light no longer blinks for a long time, but I
frankly expect it will.

david
David Beierl - Providence, RI
'84 Westy "Dutiful Passage"
'85 GL "Poor Relation"