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Old 08-14-2019, 11:05 AM   #13
Jim Brierley
Senior Member
 
Join Date: Jun 2010
Location: Temecula, CA
Posts: 3,365
Default Re: Flared copper washers for gaskets?

Copper lines: Copper will work harden IF it is allowed to flex or vibrate. In the 50's, etc., most production cars had a small copper line from the engine to the oil pressure gauge, I was a truck mechanic from 1956 to 1976 and never saw one crack or break. Trucks used copper air-brake lines, etc. etc. Copper has gotten a bad reputation, undeservedly! The bad reputation has been passed on by those that have never been associated with it.
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