750S front disc brakes - MVAgusta.net
 
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post #1 of 5 (permalink) Old 03-22-2011, 10:19 AM Thread Starter
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750S front disc brakes

I had a little leakage in the right front caliper, so I decided to make maintenance in front brakes.

I dismantled both calipers, and first surprise, seals were not the same as the originals supplied by the UK owners club. They seemed to be O-Rings.

Both bleeders were damaged, and it was very difficult to work with them.

But, the biggest problem, the left caliper is imposible to bleed, because it seems to be plugged. I have tried with brake cleaner, thinner, compressed air... and no success.

Anyone knows how is the connection between the bleeding point and the caliper? I can't see any hole.

Any ideas to unblock this point?

With time, I have got good braking feeling, but I would like to solve this problem for next maintenances.

(I have translated a lot of words with google, so probably some words are not the best; I hope you understand the post)
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post #2 of 5 (permalink) Old 03-23-2011, 08:06 AM
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Hi Gafas.

Scarb calipers have a small ball bearing under the bleed nipple.

This can get stuck (making it impossible to bleed that caliper) and can be very difficult to remove. A bit of heat and tapping the caliper when it is upside down may help. It is best to replace this ball with a new one as they rust.

All the best.

Dorian.
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post #3 of 5 (permalink) Old 03-23-2011, 04:50 PM Thread Starter
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Thanks Dorian,

I have already removed the ball bearing, but the connection between the bleeder zone and the caliper seems to be blogged. And I am not able to discover where the hole is, in order to clean it.
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post #4 of 5 (permalink) Old 03-24-2011, 05:25 AM
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Hi Gafas.

I have sent you an email which will i hope solve things

Dorian.
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post #5 of 5 (permalink) Old 03-24-2011, 05:24 PM Thread Starter
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Thank you very much Dorian.

Now I understand what I was seeing inside, it was the second ball. Anyway, it should be completelly blocked, I used compressed air and it satyed in place.

Now brakes are working fairly good, I will try on next maintenance.
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