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brake cylinders re-lined
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traction39



Joined: 19 May 2009
Posts: 399
Location: South Wales
PostPosted: Sat Apr 30, 2011 1:31 pm    Post subject: brake cylinders re-lined Reply with quote
Can anyone recommend a specialist who can re-line slave cylinders with Stainless steel inserts. Any pro/cons- PM me if needed.
thanks
Alistair
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ukdave2002



Joined: 23 Nov 2007
Posts: 4105
Location: South Cheshire
PostPosted: Sun May 01, 2011 8:25 am    Post subject: Reply with quote
Hi Alistair

I have re-lined slave cylinders in stainless steel for my Morris 8. Any machine shop could carry out the task, many won't because its brake related!

You will find differing opinions on sleeving brake cylinders; some people don’t like the idea of it. However done properly there are no disadvantages, in fact by introducing a stainless steel sleeve you are improving things 2 fold; firstly it’s more resistant to corrosion; not 100% as the stainless generally used for this sort of thing has less chromium content as it machines better. Secondly the surface is harder so will resist scoring.

The biggest risk is splitting or over stressing the original cylinder when inserting the sleeve; the sleeve is an interference fit, and the amount of interference will be limited by the size and thickness of the original cylinder bore, any reputable machine shop would be able to work this out. These days there are also available a range of machining adhesives that allow less (not replace !!) interference.

Pic below is a cylinder I did together with some bleed screws and fixing bolts that I also made in stainless.

Dave

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Nic Jarman



Joined: 05 Oct 2008
Posts: 1031
Location: Stoke by Clare, Suffolk
PostPosted: Sun May 01, 2011 10:21 pm    Post subject: Reply with quote
Past Parts of Bury St Edmunds did a slave cylinder and the master cylinder for me. I have done a couple of emergency stops since and no problems.
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1936 Morris 8 Series 1
1973 MGB roadster
1977 MG Midget 1500
Dax Rush
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john-saab



Joined: 06 Dec 2007
Posts: 341
Location: West Dorset
PostPosted: Sun May 08, 2011 8:55 am    Post subject: Reply with quote
I have had several master and slave cylinders done by Past Parts..great service but if you feel you can re-build it yourself then do..they charge a small fortune for supplying and fitting kits after they have re-lined the cylinders.
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