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re Re: Brake Master Cylinder Leaking

To: healey list <healeys@autox.team.net>
Subject: re Re: Brake Master Cylinder Leaking
From: joe mulqueen <joemulqueen@yahoo.com>
Date: Mon, 11 Apr 2005 18:58:04 -0700 (PDT)
Hello,
Not sure about the treatment but do know that typical
whl cylinder hones really scuff into aluminum leaving
a relatively rough surface finish.  Very noticeble to
the finger nail test.  That said, I've had success
cleaning up a few cruddy (but not pitted) cylinders
using 600 paper.
Regards,
Joe Mulqueen
'60 BT7


Date: Sun, 10 Apr 2005 08:11:34 +0800
From: Blue One Hundred <healey.nut@gmail.com>
Subject: Re: Brake Master Cylinder Leaking

Jim / Scot -

You don't want to hone the aluminum bore, because the
cylinder bore is
specially treated at the factory to resist wear. 
Honing the bore will
remove this hardened treatment and ruin the master
cylinder.

Aluminum when it is untreated will wear out quickly...
that's why
using rebuild kits on these aluminum master cylinders
don't work long
term the majority of the time.  If the hardened
surface of the bore is
damaged or worn in any way, your only option is either
to resleeve
with a SS liner or buy a new master cylinder.

Regards,

Alan

'53 BN1 '64 BJ8

On 4/10/05, Bluechipracing <bluechipracing@snet.net>
wrote:
> Bob:   Why not hone an aluminum bore?



                
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