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Re: Frozen brake slave cylinders

To: dmeadow@juno.com
Subject: Re: Frozen brake slave cylinders
From: Don Mathis <donmathis@lucent.com>
Date: Tue, 9 Sep 1997 07:55:22 -0400 (EDT)
At 04:12 PM 9/8/97 -0500, you wrote:
>Here's a tough one:-
>
>I've got 12 brake slave cylinders from two MGTD's.  They are ALL rusted
>so that the pistons are frozen in the cylinders.  I have tried EVERYTHING
>to get these things apart, including:  WD-40, Liquid Wrench, PB Blaster
>and molasses (don't ask).  They are still frozen solid.
>
>My next step is to get out the blue wrench (propane torch).  Since the
>cylinders are aluminum and the pistons are steel, I expect that they will
>expand at different rates when heated.  Hopefully, they will release if
>the aluminum expands more that the steel.
>
>Are my assumptions correct?  Does aluminum expand more that steel when
>heated?  Am I in danger of splitting or otherwise damaging the cylinders
>by doing this?  Anybody got any better ideas?
>
>David Littlefield
>Houston, TX
>
In the South...the real South, we soak things like that in Coca-cola.  The
phosphoric acid is the good stuff that does it.
good luck-
Don Mathis,Ph.D.
donmathis@lucent.com
'61 MGA 
'37 Derby Bentley (B190KT)


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