Brake caliper pin problem. |
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Mike H
Senior Member Joined: 21 May 2014 Location: East Anglia Status: Offline Points: 8733 |
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Posted: 26 Feb 2019 at 22:17 |
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Ditto.
Interesting, I've always had to use a hammer and drift on all of mine to get them out then back in again. In other words, foooking tight. Yep BMW also used the P8, my R80 had them too. And ditto tight pins. |
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"Chicken nuggets don't dance on a Tuesday."
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ReggieV
Senior Member Joined: 12 Oct 2014 Location: Leeds,Yorkshire Status: Offline Points: 456 |
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The bike in question will probably be put up for sale in the next few months and so although I'd be happy to wire the pins in as per jpc's pictures if the bike was for my use, I still think that I will look at getting it bushed or as also suggested by jpc, ask my friend thinks it would be easier to turn a new pin. That may be another option. I agree that the spring clip does play a significant part in keeping the pins in place.
On top of that I have Ducati paddy and BMW Motorworks and even Gutsibits to ask if they have any 2nd hand calipers.
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Brian UK
Moderator Group Joined: 13 May 2014 Location: Surrey Status: Offline Points: 17641 |
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Should be a standard P8 calliper.
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Brian.
Better 5 minutes late in this world than years early in the next. |
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nab301
Senior Member Joined: 29 Oct 2017 Location: Dublin Ireland Status: Offline Points: 443 |
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Are they not the same caliper as fitted to BMW airheads and others , (I'm assuming they have the same piston dia and mounting bolt spacing . Plenty of good ones available from the likes of Motorworks?
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Nigel
Keep smiling , it makes people wonder what you've been up to! '19 CB125F, '18 DL250 SUZUKI V STROM,'99 Bmw R1100S, '03Bullet 65 500, '93 MZ301 Saxon fun (offroad) |
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jpc
Senior Member Joined: 06 Oct 2016 Location: Belgium Status: Offline Points: 651 |
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It's the leaf spring between the pads that holds the pins, not the c-clips.
If the pins REALLY rattle, why not drill at 7mm and have someone turn oversize pins, problem solved. I think Eddie Lawson famously had a crash after the pads dropped out, and some mechanic was let go, and I mean FIRED !!
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Chris950s
Senior Member Joined: 03 Nov 2018 Location: Essex Status: Offline Points: 378 |
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Mine are stainless steel and come out a treat, but only when tapped with a small hammer and then wrestled out with a pair of pliers. Center pins are stainless too. All supplied by Shaw Stainless
I can't remember where I got the springs from, but they are stainless too.
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Chris and Karen - Essex
2011 Stelvio NTX, 1974 950S (750S replica nearly rebuilt!), 1966 Triumph T100SS 58 years young this year! |
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TheWrongTrousers
Senior Member Joined: 05 Nov 2018 Location: Somerset Status: Offline Points: 658 |
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Never.
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theone&onlymin
Senior Member Joined: 14 May 2014 Location: United Kingdom Status: Offline Points: 2072 |
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Show of hands from anyone that has had a pin come out .
Just asking.
Cheers Min |
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Chris950s
Senior Member Joined: 03 Nov 2018 Location: Essex Status: Offline Points: 378 |
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Chris and Karen - Essex
2011 Stelvio NTX, 1974 950S (750S replica nearly rebuilt!), 1966 Triumph T100SS 58 years young this year! |
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iansoady
Senior Member Joined: 23 Jul 2017 Location: Redditch Status: Offline Points: 2402 |
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I must admit those C clips don't look as if they do very much. I'd rather have some sort of positive location.
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Ian
1952 Norton ES2 1986 Honda XBR500 1958-ish Greeves/Triumph in progress |
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jpc
Senior Member Joined: 06 Oct 2016 Location: Belgium Status: Offline Points: 651 |
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Or this. It looks on inspection like an extra precaution and is at least as secure as the puny c-clips.
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Brian UK
Moderator Group Joined: 13 May 2014 Location: Surrey Status: Offline Points: 17641 |
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For someone with the right kit it should be a fairly simple job.
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Brian.
Better 5 minutes late in this world than years early in the next. |
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ReggieV
Senior Member Joined: 12 Oct 2014 Location: Leeds,Yorkshire Status: Offline Points: 456 |
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Thanks to everybody for their replies.
I do of course take safety seriously, otherwise I could have for example put silicone in the hole with the pin or epoxy resin etc etc, i.e. a bodge, but I don't ever intentionally bodge anything. After posting last night and reflecting on my comments, I quickly realised myself that an R clip wasn't a good idea if only because of the potential weakening of the pin, so sleeving / bushing seems to be the way to go. I do know a couple of engineers (one a Guzzi fan and retired) who may be able to help me with this, so thank you all again.
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Brian UK
Moderator Group Joined: 13 May 2014 Location: Surrey Status: Offline Points: 17641 |
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Done properly, as flying Tiger says, there would be no problem, but a bodge job could kill you.
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Brian.
Better 5 minutes late in this world than years early in the next. |
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Mike H
Senior Member Joined: 21 May 2014 Location: East Anglia Status: Offline Points: 8733 |
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Got a horrible feeling any kind of apparent modification to a brake caliper might be an MOT fail. The repair would have to be very good to remain original in function and appearance, and not any kind of apparent "bodge". E.g. drilling holes for R-clips is out. Many years ago I remember replacing a brake linkage on a Reliant with a nut and bolt (can't remember why exactly), but was later told can't do that, must be a plain clevis pin with a split pin, as per originally. |
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"Chicken nuggets don't dance on a Tuesday."
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