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 Post subject: Hope C2 leaking... :(
PostPosted: Wed Jul 25, 2012 4:22 pm 
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Joined: Wed Dec 21, 2011 6:07 pm
Posts: 422
Location: Sheffield
My old Hope C2 is leaking oil. I'm 99% sure its leaking from the piston. I have no experience in changing the pistons any top tips?, where to buy, how to do etc.. Any help will be much appreciated!


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 Post subject:
PostPosted: Wed Jul 25, 2012 5:04 pm 
retrobike rider
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Joined: Thu Aug 13, 2009 1:01 pm
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Location: Looking at my bike from the comfort of my sofa!!
Does this help?

http://www.hopetech.com/page.aspx?itemID=SPG154

CRC still have quit a lot of old parts, and the 5mm braded hose kits fit all hope stuff.

Cyfa2809 is pretty good with Hope advice, im sure hell be along soon!!


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 Post subject:
PostPosted: Wed Jul 25, 2012 7:28 pm 
Gold Trader / rb Rider / Special
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Joined: Mon Aug 31, 2009 12:26 am
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Location: Rurally close.
Hello!

Im not so well versed in c2s but ba57stards is i beleive.

However, i guess they would be standard fair. Put an adjustable spanner or cable tie around one piston and pump the lever and the unclamped piston should pop out. Use a pick to get the seal out.
When putting in new pistons or seals, i fill the lid of my fluid bottle and let them sit in there to coat them.
Put new seal and/or piston in, you may have to walk it back with the round end of an 11mm or so spanner.
Then clamp the replaced piston and repeat for the other side.

Thats how i would do it.

You may find its leaking from the split in the caliper? Not sure if those alloy bolts you have in there would cause any problems.


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PostPosted: Wed Jul 25, 2012 7:44 pm 
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Joined: Wed Dec 21, 2011 6:07 pm
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Thanks both of you! I'm defo going to give it a shot. I'll probably replace pistons and seals from what I've read. Fortune favored the brave and all that :? :P


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 Post subject:
PostPosted: Wed Jul 25, 2012 7:45 pm 
Gold Trader / rb Rider / Special
Gold Trader / rb Rider / Special
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Joined: Mon Aug 31, 2009 12:26 am
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Location: Rurally close.
Yeah may as well go all out!

Let us know how you get on.


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 Post subject:
PostPosted: Thu Jul 26, 2012 7:48 am 
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Joined: Mon Jun 02, 2008 2:52 pm
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wow, what the hell is that mount? That ain't right!? :?


The pistons screw out, so you will need something like a pin spanner to remove them by twisting. Probably get by with a pointy pliers tbh.

Seals are easy from there on, also as Cyfa said there is a seal between the caliper halves could be the issues.

I don't see why you would need to change the pistons, plus this is a closed brake so the pistons are not as simple as the open ones, there is springs and stuffs in them! :o


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 Post subject:
PostPosted: Thu Jul 26, 2012 9:06 am 
Retro Guru

Joined: Wed Dec 21, 2011 6:07 pm
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Location: Sheffield
Haha I know that was my first reaction to it. The holes are in the same place as the 151's it just seems that there wasn't as much finesse put into the pre-production boxxers lol


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 Post subject:
PostPosted: Thu Jul 26, 2012 8:56 pm 
Gold Trader / rb Rider / Special
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I see, some great info there.


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