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 Post subject: Hope c2 pad change
PostPosted: Fri Aug 17, 2012 5:26 pm 
Retro Guru
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Joined: Sat Jun 21, 2008 12:20 am
Posts: 862
Location: St. Helens
Hi, I have some c2's and wish to change the pads. The levers have the thumbwheel adjuster on the top of the reservoir, with the adjusters backed off as far as they go there is still not enough clearance to fit the new pads.I'm thinking I need to take a bit of fluid from the system so the pistons will retract further. Should I do this at the bleed nipple or from the reservoir. Or am I way off ?


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 Post subject:
PostPosted: Fri Aug 17, 2012 7:16 pm 
Old School Grand Master
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Joined: Fri May 01, 2009 7:11 pm
Posts: 8479
Location: Fircombe.
Try prising the pistons apart a bit further with a big clean screwdriver or some such. If they're still too tight bleed a little off from the nipple, using a tube.


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PostPosted: Fri Aug 17, 2012 9:43 pm 
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Joined: Sat Jun 21, 2008 12:20 am
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Location: St. Helens
Thank you, will have a go tomorrow :D


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 Post subject:
PostPosted: Fri Aug 17, 2012 11:38 pm 
Gold Trader / MacRetro rider
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Joined: Sun May 25, 2008 11:03 am
Posts: 18207
Location: Sunny Glasgow
Sigh.Here we go again :lol: :lol:

As this is the closed then shoving the pistons back really isnt going to solve the problem.Its not the standard system so you cant get fluid back into the caliper that way
Try first of all by opening the bleed nipple briefly,if fluid comes out that good but check to see if the pistons move when you do so otherwise youll need to open the lever cap then shove it back.
If you have to do that then you'll have to top up the system before putting the cap back on.
The pistons are on springs and it could be the fluid has expanded,opening the nipple will let the excess fluid escape.Dont touch the lever to pump it out as that will put air into it.If the pistons dont go back then its possible that the system needs stripped and cleaned

when you bleed c2's you dont jam the pads open,let them come out then after refitting the topcap you briefly open the nipple to allow them to spring back

Clear :lol:


I would recommend if you need to open the system to use silicon on the sides of the piston,could be theyre a little dry :?
Example-
Screw down adjuster and pull lever.hold lever and apply silicon.
Open top cap-shove back pistons
Refill-Close top cap
Open nipple briefly to drain excess

Screw down adjuster and pull lever.hold lever and apply silicon.
Open top cap-shove back pistons
Refill-Close top cap
Open nipple briefly to drain excess

Screw down adjuster and pull lever.hold lever and apply silicon.
Open top cap-shove back pistons
Refill-Close top cap
Open nipple briefly to drain excess


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 Post subject:
PostPosted: Sat Aug 18, 2012 12:24 am 
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Joined: Sat Jun 21, 2008 12:20 am
Posts: 862
Location: St. Helens
Wow, seems like you've done a few, thanks for the input.


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