Wobbling brake caliper

[marstrand]

Bought a Honda Hornet, first bike.

I recently removed the front left caliper to grease the sliding pins. I've been more observant of it since then, and noticed that its motion appears to be somewhat "wobbly". What I mean with that is whenever the caliper moves outwards, the uppermost past of the caliper (or the upper sliding pin) appears to be moving outwards before the lower part (the lower sliding pin). Same story when it moves inwards again. Attached a homemade, slightly exaggerated figure of somewhat how it looks.

Is this normal or something to worry about? I ask since I removed and reinstalled the caliper myself, with some but not excessive mechanical knowledge, fearing that I messed up somehow. I used a torque wrench for the bolts, so that should at least have been done correctly.

Since I wasn't really observant of the caliper when riding previously, it is likely that it was moving that way previously. If it's not normal, what could it be a sign of? I've been thinking about a bent disc, which maybe could explain why the front brakes sometimes makes squeaking noises when I lead the bike. No vibrations whatsoever when driving so I suspect the squeaking may be due to build up of old brake dust.

[WD Forte]

Sounds like a warped disc to me
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[marstrand]

[F18]

Check the run out of the disc, in situ - easy, by eye to start with and you've one on the other side to compare it to.

If it looks true you'll have to overhaul the calipers (I bet they need doing anyway) and start from a know good, clean, non-sticking, work point.

If you are unsure which way to hold the spanners, book it in a local independant - this will be bread and butter work for anyone remotely decent. You don't want to f***k this up.
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[to v or not to v]

plenty of how toos on youtube for brake servicing. its not too hard to do.
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[Zen Dog]

[jaffa90]

"""If the caliper is only moving a couple of mm."""

I think you mean the disc ?
The calliper should not move so that leaves the disc.
The disc should not move either because it will shorten the life of the brake seals.

[Nobby the Bastard]

What bollocks are you talking now, Jaffa?
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[jaffa90]

[Nobby the Bastard]

[Zen Dog]

OP doesn't say exactly which version of the Hornet they have, and the name has been used a few times. Plus they're probably 'merkin as they say "highway".

Assuming it's a Mk1 CB600F version, they have floating disks and seemingly the same 2-pot sliding calipers as my VFR750. You can see this here - https://www.youtube.com/watch?v=wTQlsZpQFVQ
In which case, both the calipers and disks can move slightly. Though presumably, if enough force is being applied to the caliper to make it move, unless they're pretty seized you'd expect it to push the pads back a bit too.

marstrand, are you noticing a lot of travel at the brake lever? Why did you feel you needed to grease the sliding pins in the first place?
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[Nobby the Bastard]

I did wonder about the possibility of floating callipers, but obviously there are because all single piston ones have to be floating.
____________________
trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Sprint ST 1050

[marstrand]

[Nobby the Bastard]