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Re: Rear wheel cylinder +4 [Re: SteveH] #575940
10/05/19 07:28 AM
10/05/19 07:28 AM
Joined: Jun 2015
Posts: 487
North Somerset, UK
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Deejay Offline
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Joined: Jun 2015
Posts: 487
North Somerset, UK
Originally Posted By SteveH
Thanks for all your advice Talkmoggers. Various prices ranging from circa £30 to the most expensive£90,all using Morgan part numbers. I ordered cw15953 from Uk mg parts (Brown and Gammon) at £33. I hope this is the correct part,how can they supply a Morgan oem part for nearly £60 less than the main agent. What is going on!

Although part number is correct, are there any other markings on the many cheaper ones around such as C-H-I-N-A for instance?


Doug

2011 +4 in Rich Maroon
Re: Rear wheel cylinder +4 [Re: SteveH] #576216
12/05/19 05:41 AM
12/05/19 05:41 AM
Joined: May 2015
Posts: 247
north yorkshire
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Lowflyer Offline
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north yorkshire
Got mine from brakes international for next to nothing. They're a ford transit van application....thoroughbread eh

Re: Rear wheel cylinder +4 [Re: SteveH] #576334
13/05/19 07:29 AM
13/05/19 07:29 AM
Joined: Aug 2006
Posts: 665
Perthshire & London
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flyfisher Offline
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Perthshire & London
Got a pair from them and eBay fitting tool. Any tips of fitting or simply YouTube video on for transit?

Re: Rear wheel cylinder +4 [Re: SteveH] #576484
14/05/19 11:00 AM
14/05/19 11:00 AM
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Posts: 106
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peterd Offline
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Just take care for the right cylinder diameter:

Original diameter 23,81mm
Ford Transit diameter 22,2mm

Optically, they are identical.

So far I did not find a Transit cylinder with a diameter of 23,81mm.

Re: Rear wheel cylinder +4 [Re: peterd] #576498
14/05/19 01:05 PM
14/05/19 01:05 PM
Joined: Jun 2015
Posts: 487
North Somerset, UK
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Deejay Offline
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Originally Posted By peterd
Just take care for the right cylinder diameter:

Original diameter 23,81mm
Ford Transit diameter 22,2mm

Optically, they are identical.

So far I did not find a Transit cylinder with a diameter of 23,81mm.

If my maths is correct, that represents a reduction of force applied to the brake shoes of 13% for the same pedal pressure.


Doug

2011 +4 in Rich Maroon
Re: Rear wheel cylinder +4 [Re: SteveH] #576732
15/05/19 07:57 PM
15/05/19 07:57 PM
Joined: Aug 2006
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Perthshire & London
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flyfisher Offline
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So I had a attempt at fixing this tonight but need a flat head screwdriver socket attachment for the drums....

Anyway I did discover that the rear brakes do not work at all from
The pedal and there is only a 1cm of movement on the petal were it gets stuck and needs a pull to come back...

It is more likely to be the Master Cylinder / Blockage air in the system?

Re: Rear wheel cylinder +4 [Re: SteveH] #576744
15/05/19 09:58 PM
15/05/19 09:58 PM
Joined: Dec 2008
Posts: 18,448
South Yorkshire
DaveW Offline
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South Yorkshire
If you have wires, the drums are retained by the four conventional bolts, you don't need to touch the slotted screwheads.

Test the hydraulics by bleeding each side and see if the fluid comes through ok.

Were the brakes ok before you started?


DaveW
2005 Corsa Red Roadster S1
2016 Saffron Yellow (Narrow) AR Plus 4
Re: Rear wheel cylinder +4 [Re: SteveH] #576761
16/05/19 05:56 AM
16/05/19 05:56 AM
Joined: Jun 2015
Posts: 487
North Somerset, UK
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Deejay Offline
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If it was air in the system, the pedal would likely move much further. Is it possible there are two separate issues here? A seized/corroded rear cylinder and a broken return spring on the brake pedal?


Doug

2011 +4 in Rich Maroon
Re: Rear wheel cylinder +4 [Re: Deejay] #576773
16/05/19 08:39 AM
16/05/19 08:39 AM
Joined: Aug 2008
Posts: 2,288
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Originally Posted By Deejay
If it was air in the system, the pedal would likely move much further. Is it possible there are two separate issues here? A seized/corroded rear cylinder and a broken return spring on the brake pedal?

If it's the rear brakes (plural) not working I'd have thought it's more likely to be a seized master cylinder. The return spring's been broken for years on my pedal without causing any problems.


1972 4/4 2 Seater
Re: Rear wheel cylinder +4 [Re: SteveH] #577659
23/05/19 12:34 PM
23/05/19 12:34 PM
Joined: Aug 2006
Posts: 665
Perthshire & London
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flyfisher Offline
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Perthshire & London
So took the rear drum apart, the cylinder is seized so that is the likely cause. Sadly the transit cylinders don’t fit!! They are too big and the mounting hole does not line up.. so will have to wait till next week when I get replacements.


Interesting trying to get it booked in to Track and Classic, would be July and BHM would be August so doing it myself..

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