RobertWhitehead Posted May 14, 2023 Share 41 minutes ago, MrJacques said: First time I've seen these clips on a bike. They're meant to stop the bolts backing out. Nut lock works even better and looks neater đ. You normally get those with new brakes Link to comment Share on other sites More sharing options...
BaGearA Posted May 14, 2023 Share 3 hours ago, Frosty said: A rounded bolt and be removed by placing an elastic rubber band in first, then the Allen key, so the elastic is on 4 sides of the hex. Not sure on 2mm, as itâs a bit small, but it works well on 4mm and bigger; also on screw driver heads too. But I guess âhow tightâ is another thing causing rounded problems. If the thing is not mangeld already there's enough of a flange on those to grip it with a waterpump plier and just turn a little then it unscrews by hand. Â Even a good wiremans plier will do the job Link to comment Share on other sites More sharing options...
Frosty Posted May 14, 2023 Share 8 minutes ago, BaGearA said: If the thing is not mangeld already there's enough of a flange on those to grip it with a waterpump plier and just turn a little then it unscrews by hand. Â Even a good wiremans plier will do the job The pinch bolts on cranks, or the bolt on brake levers are recessed, so difficult to get to. Cheesehead type Allen caps would work well. Link to comment Share on other sites More sharing options...
BaGearA Posted May 14, 2023 Share 1 hour ago, Frosty said: The pinch bolts on cranks, or the bolt on brake levers are recessed, so difficult to get to. Cheesehead type Allen caps would work well. 2mm screw is shimano  Magura and sram are both torx and recessed  I assumed he was talking about a shimano cap....sorrry   Link to comment Share on other sites More sharing options...
TheoG Posted May 14, 2023 Share 2 hours ago, MrJacques said: First time I've seen these clips on a bike. They're meant to stop the bolts backing out. I find this very strange. Never had these getting loose on me. If properly torque should not come loose without those. Link to comment Share on other sites More sharing options...
mazambaan Posted May 14, 2023 Share While on brakes.................. Fitted new pads, tight fit, genuine Shimano but there is some friction and rubbing while the lever is now like wood, no travel and poor braking. Pistons were cleaned and, as far as I can see, retract fully. Do I need to release some oil or is there something else going on? Link to comment Share on other sites More sharing options...
BaGearA Posted May 14, 2023 Share 10 hours ago, mazambaan said: While on brakes.................. Fitted new pads, tight fit, genuine Shimano but there is some friction and rubbing while the lever is now like wood, no travel and poor braking. Pistons were cleaned and, as far as I can see, retract fully. Do I need to release some oil or is there something else going on? when you say "fully" does that mean they pull back flush with the caliper ? mazambaan 1 Link to comment Share on other sites More sharing options...
thebob Posted May 14, 2023 Share @MrJacques those clips need to co on the actual caliper bolts. They've got nothing to grip on the adapter bolts and are likely to fall off Zebra 1 Link to comment Share on other sites More sharing options...
MrJacques Posted May 14, 2023 Share 13 minutes ago, thebob said: @MrJacques those clips need to co on the actual caliper bolts. They've got nothing to grip on the adapter bolts and are likely to fall off You're right. It was a photo I found on the internet that shows the clips. I didn't even notice that, lol. The one on my bike is installed correctly. Thanks thebob and Zebra 2 Link to comment Share on other sites More sharing options...
mazambaan Posted May 15, 2023 Share 14 hours ago, BaGearA said: when you say "fully" does that mean they pull back flush with the caliper ? Pretty much and I cleaned the pistons as best I could with brake cleaner before easing them back to fit the new pads. Link to comment Share on other sites More sharing options...
BaGearA Posted May 15, 2023 Share 33 minutes ago, mazambaan said: Pretty much and I cleaned the pistons as best I could with brake cleaner before easing them back to fit the new pads. If they retract fully it means the system is not over bled/filled  Something else is going on , first check the rotor without pads in , is there a slight warp ?  The lever pull is kinda normal but it means there's not room for more oil in the reservoir. Take a little oil out ( like 3ml ) will quickly bring back the classic "shimano" free stroke mazambaan 1 Link to comment Share on other sites More sharing options...
Chadvdw67 Posted May 15, 2023 Share 6 hours ago, BaGearA said: If they retract fully it means the system is not over bled/filled  Something else is going on , first check the rotor without pads in , is there a slight warp ?  The lever pull is kinda normal but it means there's not room for more oil in the reservoir. Take a little oil out ( like 3ml ) will quickly bring back the classic "shimano" free stroke 3ml? That's like half the fluid in the entire system 𤠠Also, when checking for any warpage on the discs, make sure you know what you doing with your hands, otherwise your finger/s will look like mine 𤣠mazambaan and ChrisF 1 1 Link to comment Share on other sites More sharing options...
BaGearA Posted May 15, 2023 Share 4 hours ago, Chadvdw67 said: 3ml? That's like half the fluid in the entire system 𤠠Also, when checking for any warpage on the discs, make sure you know what you doing with your hands, otherwise your finger/s will look like mine 𤣠kay Link to comment Share on other sites More sharing options...
mazambaan Posted May 16, 2023 Share Thanks; I think the 3ml oil removal is the next step - the disc is ok as I reverted back to the old pads; they were worn but not worn out. As you note with pictures, keep fingy away from disc (and chain). Link to comment Share on other sites More sharing options...
dasilvarsa Posted May 16, 2023 Share 1 hour ago, mazambaan said: Thanks; I think the 3ml oil removal is the next step - the disc is ok as I reverted back to the old pads; they were worn but not worn out. As you note with pictures, keep fingy away from disc (and chain). Make the Lever horizontal. Just Open the Screw if there is too much oil it will p!ss out.  https://epicbleedsolutions.com/blogs/articles/5-minute-shimano-mini-bleed Edited May 16, 2023 by dasilvarsa mazambaan 1 Link to comment Share on other sites More sharing options...
Wyatt Earp Posted May 16, 2023 Share 20 hours ago, Chadvdw67 said: 3ml? That's like half the fluid in the entire system 𤠠Also, when checking for any warpage on the discs, make sure you know what you doing with your hands, otherwise your finger/s will look like mine 𤣠Brake hose must be 0.0005 mm long if the system only has 6 ml if fluid in. Phillippe Coetzee, splat and danievj 1 2 Link to comment Share on other sites More sharing options...
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