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Help with Rear brake master cylinder

 
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not-ron



Joined: 29 Oct 2006
Posts: 51
Location: Opington, Kent, UK.

PostPosted: Fri Jul 04, 2008 9:15 am    Post subject: Help with Rear brake master cylinder Reply with quote

Hi


Can anyone help me I am trying to repair my rear brake master cylinder I have dismantled it as far as trying to remove the piston from the cylinder. I have about 3/16 of the piston sticking out the plunger end but when I pull it, it refuses to come out....any help would be gratefully accepted

Very Happy
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L.A.B.
Moderator


Joined: 20 Nov 2004
Posts: 1842
Location: Norfolk, UK

PostPosted: Fri Jul 04, 2008 9:21 am    Post subject: Reply with quote

It should just pull out?
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not-ron



Joined: 29 Oct 2006
Posts: 51
Location: Opington, Kent, UK.

PostPosted: Fri Jul 04, 2008 9:33 am    Post subject: Reply with quote

the problem has been that the piston has been sticking holding the rear brake on so I checked the calliper and that was ok I found that if I released the bleed nipple the disc would free so I assumed that the pressure was kept on by the master cylinder....having taken it apart I have never seen so much gunge inside a master cylinder of any sort. Question is how hard do I pull,not having taken one of the apart before I was wary of some sort of retaining clip/screw as with the grub screw in the body
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L.A.B.
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Joined: 20 Nov 2004
Posts: 1842
Location: Norfolk, UK

PostPosted: Fri Jul 04, 2008 10:00 am    Post subject: Reply with quote

If the barrel and piston are badly corroded then you've got nothing to lose by pulling at it. And if you attempt to rebuild it with new seals it could leak if it is corroded internally?

In fact you might as well just buy a new barrel and piston assembly, as they are not that expensive (about £40, or stainless £65), as you don't have to buy the complete master cylinder unit.
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The Unapproachable Norton Commando

At the end of 1967 the Norton Commando was announced.

The Norton Commando was greeted with a certain amount of scepticism because on first sight the commando appeared to comprise of the old Norton Dominator twin cylinder engine mounted at an inclined angle in a set of new cylinder parts.

It was not realized that the new Norton Commando Isolastic method of engine suspension damped out all engine vibration and produced a machine which had uncanny smoothness for a vertical twin. In due course the critics were silenced and the Norton Commando had the distinction of being regarded as the first of todays so called superbikes. There can be little doubt that the original design concept of the Norton Commando has proved correct, since comparatively few modifications of any real consequence have been made since production commenced during 1968.

Now nearly 40 years later Norton Commando riders like us are a breed of our own, and as far as we are concerned its still more fun to go for a blat on the old Norton Commando, and fast. As a Norton Commando owner and enthusiast, my goal here is to promote and give credit to those who keep the Norton name going.

It is more deserving to give credit to the Commando itself, for after all these years it continues to be respected. The original Commando designers like John Favill are those who deserve the credit for developing this incredible motorcycle.

The Norton Commando Roadster and Interstate of the late seventies, never died. Although the Norton Villiers factory dispersed the tradition lived on. Today Kenny Dreer in the USA is developing the new 952 CC Norton. What a great looking bike this is, and its engineering is still based on the original layout. It will be interesting to see how the new 952CC Norton does in todays tough motorcycle market. One thing is for sure, I would own one if I could afford it.