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Post by armstrongracer on Apr 24, 2021 0:17:40 GMT
Ah, most of the calipers Ive done recently have been on classics with chromed pistons, fine wet n dry soaked in WD40 cleans em up a treat with Brasso for final polish.
Dont knock Crisp n Dry. That fully Synth is expensive hype. SPRY is yer only man.
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Post by Diego the toe clipper on Apr 26, 2021 8:32:04 GMT
Got me brakes back!
What a pain in the arse it is trying to get a totally dry system to fill! I've got a Gunson "Easybleed" which I use for the car, but thought I'd try in on the bike... yeah, right, none of the adaptors came close to the fluid reservoir cap on the GSXR. But after unsuccessfully trying to suck the fluid through (leave it Noodle) with a syringe I decided that I had to get some pressure from the top to force the fluid in.After taking apart the Gunson thingy and removing the reservoir from the bike I had managed to connect the two together and bingo. A few tense moments were had while trying to disconnect the Gunson tool and put the reservoir back with the system full of fluid, but no paintwork was damaged and no animals were harmed (to my knowledge).
The piston material had me curious though, since when were brake pistons made of alloy? A quick bit of Googling has suggested that there was a phase of using alloy a few years back, but some reports suggest that it transmits too much heat into the caliper and fluid. I've even seen it suggested that on newer GSXRs they have gone back to steel?
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Post by Droog on Apr 26, 2021 20:16:06 GMT
Do what I did. I purchased a spare reservoir cap second hand and modified it. Well I drilled a hole in it and fitted the gunson to it.
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Post by Diego the toe clipper on Apr 27, 2021 5:50:15 GMT
Do what I did. I purchased a spare reservoir cap second hand and modified it. Well I drilled a hole in it and fitted the gunson to it. A logical solution, but sadly time was of the essence... |
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Post by armstrongracer on Apr 27, 2021 7:05:02 GMT
Do what I did. I purchased a spare reservoir cap second hand and modified it. Well I drilled a hole in it and fitted the gunson to it. That's essentially how the manufacturers do it, fill from bottom pulling vacuum through reservoir. |
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Post by Diego the toe clipper on Apr 27, 2021 8:01:19 GMT
Do what I did. I purchased a spare reservoir cap second hand and modified it. Well I drilled a hole in it and fitted the gunson to it. That's essentially how the manufacturers do it, fill from bottom pulling vacuum through reservoir. Gunsons fill from the top using pressure to force the fluid through. |
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Post by Diego the toe clipper on Apr 27, 2021 8:05:56 GMT
While we're on the subject of brakes, does anybody actually clean their disc bobbins like in the video below? Or is this bullshit? Certainly this procedure is not mentioned in the Suzuki manual for my bike.
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Post by elnoodle the reasonable on Apr 27, 2021 11:24:17 GMT
While we're on the subject of brakes, does anybody actually clean their disc bobbins like in the video below? Or is this bullshit? Certainly this procedure is not mentioned in the Suzuki manual for my bike. That's an excellent tip, I've never cleaned those but fuck me, that bike looks like a bonfire that's waiting to be lit. |
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Post by armstrongracer on Apr 27, 2021 17:56:43 GMT
Ah, thought the gunson was a vacuum pump. Pulling from top & filling from bottom is best way to chase all the air out.
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Post by armstrongracer on Apr 27, 2021 18:02:23 GMT
While we're on the subject of brakes, does anybody actually clean their disc bobbins like in the video below? Or is this bullshit? Certainly this procedure is not mentioned in the Suzuki manual for my bike. Yup, done that but spun it up with a battery drill cos I am lazy that way. |
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Post by Diego the toe clipper on Apr 27, 2021 18:55:20 GMT
Yeah , I did it too. Not sure if it really has any effect though...
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Post by elnoodle the reasonable on May 12, 2021 12:17:28 GMT
Went out on the 'Blade today for the first time in a while and it needs brake surgery.
I'm hearing grating and crunching from the front and getting unexpected intermittent vibrations through the bars, as if I've driven over a stone. The forks and bars vibrate under braking but I'm not getting pulsing through the lever. When I brake, the lever comes right to the bar and I need to pump it.
Everything points to warped discs pushing the pads back but I would have expected pulsing through the lever if that was the case.
Going to try and get the front end off the floor at the weekend. I'll try freeing off the bobbins but it looks like new discs will be needed.
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Post by mekon on May 12, 2021 12:35:22 GMT
Maybe you got a Crunchie bar stuck in it?
Surely if your lever is back to the bar then something else is also afoot? Maybe your brakes pads have been replaced with a Snickers? or you have Irn Bru in the hydraulics?
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Post by Diego the toe clipper on May 12, 2021 14:01:12 GMT
Well, for what its worth, I've not really noticed that much difference in my brakes, despite having spent hundreds of € on them with seals, fluid, hoses and cleaning the bobbins. That said I've only ridden the bike to work and back a few times and the centre of town isn't the place to by testing braking power really. Maybe on track I'll appreciate an improvement.
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Post by elnoodle the reasonable on Jun 5, 2021 21:24:10 GMT
While we're on the subject of brakes, does anybody actually clean their disc bobbins like in the video below? Or is this bullshit? Certainly this procedure is not mentioned in the Suzuki manual for my bike. Tried this today. Cunts are seized solid. Left them drowned in WD40 overnight. Tried to see if one of the discs was warped but it was inconclusive. Could always just buy new discs and carriers but it's some £layout just to eliminate it as the cause. Difficult to conclude anything other than a warped disc though 😕 |
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