Leaking caliper

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SteveD
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Location: Melbourne, Oz.

Re: Leaking caliper

Post by SteveD »

THOSE SEALS AROUND...oops,...the pistons can deteriorate and split. Probably worth changing them every 15 years or so!

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Victoria, S.E.Oz.


1982 R100RSR100RS supergallery. https://boxerboy81.smugmug.com/R100RS
2006 K1200R.
1994 R1100GS.
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Zombie Master
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Location: Vancouver Island BC Canada

Re: Leaking caliper

Post by Zombie Master »

SteveD wrote: Sat Jul 08, 2017 9:11 am THOSE SEALS AROUND...oops,...the pistons can deteriorate and split. Probably worth changing them every 15 years or so!

Mine were manufactured in 1983 and look perfect.
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barryh
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Re: Leaking caliper

Post by barryh »

I'm still on original 79 seals and they seem fine. There is still enough hysteresis in the rubber to pull the pistons back and have the wheel spin free.
barry
Cheshire
England
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Zombie Master
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Re: Leaking caliper

Post by Zombie Master »

barryh wrote: Sun Jul 09, 2017 3:51 am I'm still on original 79 seals and they seem fine. There is still enough hysteresis in the rubber to pull the pistons back and have the wheel spin free.
This world has too much hysterics!

Do you have a dual disk set up?
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barryh
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Re: Leaking caliper

Post by barryh »

Single disc with Ate caliper.

Can't see why the seals shouldn't work the same on dual disc. Only difference is they push twice as much fluid back into the master cylinder reservoir.
barry
Cheshire
England
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Zombie Master
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Re: Leaking caliper

Post by Zombie Master »

barryh wrote: Sun Jul 09, 2017 12:58 pm Single disc with Ate caliper.

Can't see why the seals shouldn't work the same on dual disc. Only difference is they push twice as much fluid back into the master cylinder reservoir.
That's a much different caliper, and with two discs rubbing I would imagine any drag would be increased.
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barryh
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Re: Leaking caliper

Post by barryh »

It's a dual piston Ate caliper so very similar to a Brembo.

If there is drag from the pads then I suppose dual discs are bound to make it worse. If the drag is zero then 2 x zero is still zero. That wasn't my wheel spinning video but mine does behave the same and will spin for close to a full minute so zero drag or close to zero drag is possible.
barry
Cheshire
England
ME 109
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Re: Leaking caliper

Post by ME 109 »

Zombie Master wrote: Sun Jul 09, 2017 8:31 pm That's a much different caliper, and with two discs rubbing I would imagine any drag would be increased.
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Rob
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Re: Leaking caliper

Post by Rob »

barryh wrote: Mon Jul 10, 2017 6:12 am It's a dual piston Ate caliper so very similar to a Brembo.

If there is drag from the pads then I suppose dual discs are bound to make it worse. If the drag is zero then 2 x zero is still zero. That wasn't my wheel spinning video but mine does behave the same and will spin for close to a full minute so zero drag or close to zero drag is possible.
That was my '79 R65 in the video, Barry.

I just think those '79s were freaks of nature.
Rob V
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