Rotor bobbins

[Teacher]

Maybe a daft question but how do people on here rotate their rotor bobbins to keep the discs floating.? i've sen the youtube video using a nut , bolt and washer and turning them. Is that the method? If so I will have have to obtain a suitable nut and bolt !!
I certainly can't turn or move mine by hand so i want to free them up before i get the bike back out. I don't think I have any warped discs; bike has only done 8k, 6k by  me last year, which is a high mileage for me as i always take the car at first sign of rain.
I'm sure i read about someone using a 10mm drill bit ???

Thanks for any help on this.

[doebag]

10mm allen key does the job, or a 6mm bolt has a 10mm hex across flats. You may have a 6mm bolt laying about the garage/man cave.

[Lonewolf]

This may make it clearer.

http://www.youtube.com/watch?v=8nnDSE87Blg

[BigAlan]

10mm Allen key, small squirt of ptfe lubricant, then clean disk afterwards, once a week.

Sorted.

Alan

[Teacher]

Thanks for the quick replies folks.
Will take a quick look tonight as I need to move the bike anyway to make room for my car- saves deicing tomorrow as frost forecast again.

[Teacher]

10mm Allen key, small squirt of ptfe lubricant, then clean disk afterwards, once a week.

Sorted.

Alan

Well I tried the 10 mm Allen key and it just turned inside the "button" so I guess they are well stuck. I will try the nut and bolt method next.
One more question though , is it advisable to use PTFE spray anywhere near the discs? I have a neighbor friend , a retired mechanic, who is adamant it doesn't matter  a jot if WD40 or other such substances get on the discs as he reckons they burn off with a couple goes of the brakes. I beg to differ with him however.....

[Deon]

I just use a squirt of brake cleaner - does the trick.
You need to apply a bit of "sideways or downward" pressure on the allan key to get the bobbins to turn. Hope this makes sense.


Deon

[pistole]

yes , a twisting motion will get the bobbin moving.

10 mm bit attached to a ratchet wrench makes it easy work.

.

[BigAlan]

Well I tried the 10 mm Allen key and it just turned inside the "button" so I guess they are well stuck. I will try the nut and bolt method next.
One more question though , is it advisable to use PTFE spray anywhere near the discs? I have a neighbor friend , a retired mechanic, who is adamant it doesn't matter  a jot if WD40 or other such substances get on the discs as he reckons they burn off with a couple goes of the brakes. I beg to differ with him however.....

Don't forget you will have to pull down on the Allen key to make it "tight" in the hole, it might look like your bending the outer disk but it wont break, and i always use a bit of ptfe lube in my bobbins followed by a wipe of the disks with break cleaner afterwards.

Alan

[O.C.]

I just use a squirt of brake cleaner - does the trick.
You need to apply a bit of "sideways or downward" pressure on the allan key to get the bobbins to turn. Hope this makes sense.


Deon

[dokterdave]

Get a can of brake cleaner that comes with an extension tube.
Squash one end flat so that it fits between the inner carrier and the disc,at the button, squirt and rotate.
Watch all the crap get washed out.

[Lonewolf]

As above and when it starts turning, and it will, they'll be a white powder type residue falling out. Probably just dried brake dust or summat, nowt to fret about.

[viper]

Maybe this if you want something slightly better than brake cleaner





ebay

http://www.ebay.co.uk/itm/MUC-OFF-RE-HYDRATING-DISC-BRAKE-CLEANER-Motorbike-Motorcycle-Scooter-400ml-/161116147153?pt=UK_Motorcycle_Parts&hash=item2583454dd1

[Rusty]

Nice one Mr Viper ... the MO stuff is excellent .. give it a good spray every now and again .. don't be afraid to use the stuff it all evaporates very quickly.

[shaggs147]

Did mine today using the nut and bolt method as the allen key method didn't budge them. I was amazes at the amount of crap that came out. I definitely noticed a difference when I rode the bike later in the day - I was beginning to feel a slight pulse through the brake lever when applying the front brake, but since freeing the bobbins there's no pulsing and more feedback when braking.