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Re: Stuck rear brake? [Re: kar120c] #598284
06/10/19 07:26 AM
06/10/19 07:26 AM
Joined: Jan 2012
Posts: 374
Vspec Offline
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Vspec  Offline
Learner Plates Off!

Joined: Jan 2012
Posts: 374
Sounds familiar, see my experience here:
http://www.talkmorgan.com/ubbthreads.php/ubb/showflat/Number/395315/Searchpage/7/Main/27043/Words/%2BBrake/Search/true/they-all-do-that-sir-rear-brake-cylinder#Post395315

Re: Stuck rear brake? [Re: kar120c] #598295
06/10/19 09:37 AM
06/10/19 09:37 AM
Joined: Nov 2013
Posts: 1,655
Aberdeenshire
T
TimG Offline
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Joined: Nov 2013
Posts: 1,655
Aberdeenshire
Phil you could try giving the rear brake a hard whack with a rubber mallet to see if it will loosen any sticking shoes. At my recent service they found the piston in the cylinder for the trailing shoe had siezed though it still got an MOT with it. Its a frequent failure on Morgan rear brakes even with fluid changes. Parts £79 & 2 hours labour to remove, clean, replace cylinder & refit.

Re: Stuck rear brake? [Re: kar120c] #598304
06/10/19 11:23 AM
06/10/19 11:23 AM
Joined: Feb 2019
Posts: 2,234
Port Orchard, WA.
LightSpeed Online content
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LightSpeed  Online Content
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Joined: Feb 2019
Posts: 2,234
Port Orchard, WA.
Are there better alternate cylinders available from a different manufacturer?


Stephen
2019 M3W piling on the Covid miles

Re: Stuck rear brake? [Re: LightSpeed] #598305
06/10/19 11:32 AM
06/10/19 11:32 AM
Joined: Dec 2009
Posts: 24,154
Devonshire
+8Rich Online content
Member of the Inner Circle
+8Rich  Online Content
Member of the Inner Circle

Joined: Dec 2009
Posts: 24,154
Devonshire
Originally Posted by LightSpeed
Are there better alternate cylinders available from a different manufacturer?

Not as far as I know but some people get the cylinders lined with stainless steel which resolves the issue permanently, a few people on TM have had this done on trads.


Regards Richard

1999 Indigo Blue +8
2009 4/4 Sport Green prev
1994 Connaught Green +8 prev





Re: Stuck rear brake? [Re: LightSpeed] #598316
06/10/19 01:16 PM
06/10/19 01:16 PM
Joined: Mar 2014
Posts: 1,045
Leicestershire, UK
Bunny Offline
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Joined: Mar 2014
Posts: 1,045
Leicestershire, UK
Originally Posted by LightSpeed
Are there better alternate cylinders available from a different manufacturer?
The problem with these cylinders is corrosion. If you peel back the rubber gaitor and smear a little 'Red Rubber' grease around the bore then the cylinder will probably last indefinately.

If the cylinder is too far gone, you can have it reworked with a stainless steel liner but this will cost significantly more than replacing it with a new item. PastParts in Bury St Edmunds can do the re-sleeving.


Andy
Re: Stuck rear brake? [Re: kar120c] #598331
06/10/19 02:37 PM
06/10/19 02:37 PM
Joined: Dec 2017
Posts: 667
Evergreen, Colorado, USA
B
britmog Offline
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britmog  Offline
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Joined: Dec 2017
Posts: 667
Evergreen, Colorado, USA
Planenut: Could you advise on the procedure for bleeding the clutch, I have located the "black nut" but can't see a bleed nipple?


Bruce Marshall
1964 4/4 Series V Comp (Megan)
1994 +8 (Maurice)
2013 M3W (Olga)
Re: Stuck rear brake? [Re: britmog] #598338
06/10/19 04:19 PM
06/10/19 04:19 PM
Joined: Jun 2012
Posts: 1,343
United Kingdom, Lincolnshire
planenut Offline
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planenut  Offline
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Joined: Jun 2012
Posts: 1,343
United Kingdom, Lincolnshire

Not all the M3W's are the same as some have a Volvo internal clutch slave cylinder but the parts manual shows an external (Mazda?) type as well. I have the internal one and it's the only type I have seen. On my car the clutch bleed nipple is on a black plastic fitting on the top of the gearbox bellhousing, directly below the oil tank, it has a braided supply hose and a bleed nipple connected to the fitting. Be very careful with the plastic fitting, you don't want to damage it as it is an engine out job to replace it. Just bleed the clutch in the same way as you would bleed the brakes. I use an Ezibleed kit connected to the reservoir and change the clutch and brake fluid at the same time. The clutch fluid gets surprisingly black and dirty looking, even though it gets changed every other year.

Re: Stuck rear brake? [Re: kar120c] #598343
06/10/19 04:51 PM
06/10/19 04:51 PM
Joined: Mar 2014
Posts: 1,045
Leicestershire, UK
Bunny Offline
Has a lot to Say!
Bunny  Offline
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Joined: Mar 2014
Posts: 1,045
Leicestershire, UK
The only thing I would add to that is that the bleed nipple (on mine anyway) needs to be undone a surprising amount before it will let the fluid through.
Also, space is limited under the oil tank so I hack sawed off an old 11mm spanner to make it 70mm long. Much easier to turn!


Andy
Re: Stuck rear brake? [Re: kar120c] #598453
07/10/19 02:06 PM
07/10/19 02:06 PM
Joined: Dec 2017
Posts: 667
Evergreen, Colorado, USA
B
britmog Offline
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Joined: Dec 2017
Posts: 667
Evergreen, Colorado, USA
Thanks, will have another look.


Bruce Marshall
1964 4/4 Series V Comp (Megan)
1994 +8 (Maurice)
2013 M3W (Olga)
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