[Shop-talk] Sleeving a hydraulic clutch cylinder

[Jack Brooks]

Good info Karl.  I'm really surprised as the only place the hydraulic
pressure is acting in only one longitudinal direction is on one end of the
sleeve and that is a miniscule area. White post would know though.  I like
their work the best for cylinders, but I like these guys 
http://www.worldwideimportautoparts.com , for lever shocks.

Jack

-----Original Message-----
From: Karl Vacek [mailto:kvacek at ameritech.net] 
Sent: Thursday, August 30, 2012 6:47 AM
To: 'Jack Brooks'; 'Shop Talk'
Subject: RE: [Shop-talk] Sleeving a hydraulic clutch cylinder

A few years ago I wanted to have some cylinders sleeved and I called White
Post.  When I asked why they used brass instead of stainless sleeves, they
told me that with differential expansion stainless sleeves sometimes slid
out when hot, even when assembled using the hot cylinder/cold sleeve method.
The force that makes the cylinders slide out is hydraulic pressure rather
than friction.  Probably not going to happen with a single-ended wheel
cylinder, but a master cylinder or single-ended wheel cylinder could.

I'm plating up the insides of my MGTC wheel cylinders rather than sleeving
them.  All I need to do is fill in the pitting, and the Eastwood plating kit
is doing a fine job, building up plating reasonably fast and it's easy to
smooth out.  I've just gotta have some time to finish them.
Karl

-----Original Message-----
From: Jack Brooks
Subject: Re: [Shop-talk] Sleeving a hydraulic clutch cylinder
<snip>
While I can't say for sure, I seriously doubt there is any need for
locktite, as the only load on the cylinder trying to push the sleeve out is
the friction of the seal as it slides along the tube, but that is
counteracted by the load the pressure puts radially outward into the MC.