[Healeys] Clutch question

[Jaap Aeckerlin]

Richard, the process is called hard anodising. One uses either sulphuric
acid or chromic acid and applies a direct current with the object as anode.
An oxide layer is formed - with hard anodising the thickness is between 25
and 50 micron. A red blood cell is approx. 8 micron in diameter, a strand of
human hair approx 100 micron. Therefore you better don't hone an anodised
cylinder!
Regards,
Jack Aeckerlin, The Netherlands
1964 BJ8 29432

2010/9/3 richard mayor <mayorrichard at hotmail.com>

> I have a question about the "specially treated hardened interior surface"
> of
> the slave cylinder. Is there a source out there that explains this in
> greater
> detail? I always assumed that the aluminum was the same
> alloy/quality/hardness
> throughout. Inquiring minds want to know.
> Thanks,
>
> Richard Mayor
> BN7L-466  Vintage Racer
> Portland, Oregon
>
>
>
>
> > Date: Tue, 31 Aug 2010 11:14:50 +0800
> > From: healey.nut at gmail.com
> > To: CAWS52803 at aol.com
> > CC: healeys at autox.team.net
> > Subject: Re: [Healeys] Clutch question
> >
> > Rudy -
> >
> > You can't hone the slave cylinder - it is aluminum with a specially
> treated
> > hardened interior surface.  If you hone it, it will only last for a few
> > months.
> >
> > If the interior surface is worn, the only solution is either to get a new
> > slave cylinder or have your old one sleeved with a Stainless Steel
> insert.
> >
> > Did you try bleeding the slave cylinder?
> >
> > I find just getting a new slave cylinder and putting it on is the best
> and
> > easiest way to go.  And not too expensive.
> >
> > Alan
> >
> > On Tue, Aug 31, 2010 at 10:29 AM, <CAWS52803 at aol.com> wrote:
> >
> > > I have no clutch!  The pedal goes to the metal!
> > > If I pump it 5 - 10 times, I might be able to shift it into gear.  I'm
> not
> > > losing any fluid.  Oh yes, it's a BN4 with separate clutch & brake
> fluid
> > > cylinders.
> > > I am going to remove, hone and replace the inner seals.
> > > My question - Is this something I should undertake myself?  I do have
> the
> > > parts list and owners manuals for a guide.
> > > Any suggestions or help?
> > _______________________________________________
> > Healeys at autox.team.net
> > Donate: http://www.team.net/donate.html
> > Suggested annual donation  $12.75
> > Archive: http://www.team.net/archive
> > Forums: http://www.team.net/forums
> > Unsubscribe/Manage:
> http://autox.team.net/mailman/options/healeys/mayorrichard@hotmail.com
> _______________________________________________
> Healeys at autox.team.net
> Donate: http://www.team.net/donate.html
> Suggested annual donation  $12.75
> Archive: http://www.team.net/archive
> Forums: http://www.team.net/forums
> Unsubscribe/Manage <http://www.team.net/forums%0AUnsubscribe/Manage>:
> http://autox.team.net/mailman/options/healeys/j.aeckerlin@gmail.com