Re: [alfa] Re: Locktite & copper washers

["Gwynne W. Spencer" <gwynnes1@xxxxxxxxxxx>]

I always thought that the process was to heat the copper til the color 
"flared", then let it cool slowly at room temp. At least that is what I 
have done in the past with good success, even on the conical copper washers 
used in the E-12 BMW air conditioning fittings (freon gas at a couple of 
hundred PSI is a lot tougher to seal than hot oil at 0 pressure)

Gwynne Spencer

At 04:03 PM 7/2/2004 -0400, you wrote:
>At 5:36 PM +0000 7/2/04, alfa-digest wrote:
>>Date: Fri, 2 Jul 2004 13:21:14 -0400
>>From: RonHorowitz <RonHorowitz@domain.elided>
>>Subject: Subject: [alfa] Re: Locktite & copper washers
>>
>>>Can't you just aneal the old washers?
>>
>>I'm jumping into the middle of this one, and not sure what you guys were
>>talking about, so I may be speaking out of turn, but on non-critical
>>applications, you can anneal copper washers a couple of times before you
>>need to replace them. I always put them back on in the same orientation, as
>>the front faces get marked up from the flats of the fasteners. That works
>>fine on drain plugs, but I wouldn't do it to something like the crush
>>washers on my brake calipers. Just my .02.
>
>
>What does this accomplish that allows re-use of the washer?  I would 
>expect this process to make the washer harder, which I wouldn't have 
>guessed would help much.  Does this process make the washer expand and 
>contract such that it ends up less deformed?
>
>-Joe
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