[Healeys] Corrosion on Clutch Master

Bob Simmen rsimmen at nc.rr.com
Thu May 2 19:02:14 MDT 2019

Out of curiosity, why should you never hone aluminum cylinder bores?  What damage is done?

Thanks in advance.



From: Healeys <healeys-bounces at autox.team.net> On Behalf Of Michael Salter
Sent: Thursday, May 2, 2019 7:39 PM
To: Price Lindsay <050.rpl at gmail.com>
Cc: Healey List <healeys at autox.team.net>
Subject: Re: [Healeys] Corrosion on Clutch Master


Hi Price you don't mention whether the corrosion is in the bore or on the outside. 

Corrosion on the outside is usually as indication that there is a small leak of brake fluid.  On aluminum cylinders it produces a crusty white deposit which is usually easily cleaned off. The leak will be under the corrosion. 

Corrosion in the bore is not so good but can often be corrected by rebuilding the cylinder. 

NEVER hone aluminum cylinder bores ... the cylinder will be irreparably damaged.




On Thu, May 2, 2019, 6:18 PM R. Lindsay, <050.rpl at gmail.com <mailto:050.rpl at gmail.com> > wrote:

I have a small buildup of corrosion on the surface of my clutch master.  Any ideas on what could be causing this?

Thank you so much for the help.

Price Lindsay

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