Robert Keezer wrote: > > The engine in the '87 I bought blew from overheating I have discovered. The Vanagon was from Arizona,a state that has hard water, and this water ate the insides of the water pump out. > > The impeller had a 1/8" gap between it and the housing, and the walls of the pump was severely pitted. It looked like it was eaten away by acid.Or is there a different explanation? > My guess is that the coolant wasn't being pumped at required pressure. The engine overheated on a mountain pass and destroyed the piston, head and case. > > We have rain here in Washington-would this be safe to use in the cooling system? > > Robert Sounds reasonable, assuming you aren't down wind from a power plant burning high sulfur coal and the water doesn't get a lot of dirt in it during the collection process. Many of our ancestors used rain water for laundry because it was softer than their well water. Larry A. |
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