[Healeys] overheating

[Ron Fine]

I live in West Los Angeles.  Our tap water is reputed to be very clean but 
very hard.  Lots of mineral content.  Just boil some water in a pot an see 
the white residue left behind.  Let the sprinklers hit your nice polished 
car and you've got a lot of white spots on your paint.  I think that 
minerals percepitate out of hot water and can, over time, clog up a radiator 
or just coat the water passages making heat transfer more difficult.

Ron