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[OM] Re: Grump OT

Subject: [OM] Re: Grump OT
From: David Thatcher <davidt@xxxxxxxxxxxxxxxxxxx>
Date: Sat, 26 May 2007 17:34:19 +0930
On Fri, May 25, 2007 at 08:24:09PM -0400, Bob Whitmire wrote:
> Repair guy says it's a design flaw in the engines.

This is what happens when you mix dissimilar metals in this sort of
service,  a) you get a massive battery (the coolant is the electrolyte)
that removes ions from one side, & b) failures that occur when
dissimilar thermal expansion coefficients are at play. There is a
special place in my purgatory reserved for the inventor of alloy heads.
On his right hand, there's a place for the inventor of rubber cam drive
belts.  On his left, some for the designers of engines with chain drive
overhead cams without full length timing covers... 

davidt




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