Brake Caliper Pistons - Printable Version

Brake Caliper Pistons - Printable Version

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+--- Thread: Brake Caliper Pistons (/showthread.php?tid=72384)

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Re: Brake Caliper Pistons - bandit - 01-05-15

As you've removed calliper already make sure bleed nipple is done up get one of these (red plastic one)http://www.ebay.co.uk/itm/Ball-Football-Needle-Adaptor-Valve-Inflator-Rugby-Vollybal-Adapter-Bike-Car-Pump-/271854882909?pt=LH_DefaultDomain_3&hash=item3f4bd0505d

Now this is the tricky bit & painful if you trap your fingers between the pistons, try to remove only one or two pistons at a time on one side of the calliper, the pistons must be held in except the one/ones you want to remove (not with your fingers you've been warned) now using the above type adaptor on a foot pump place the adaptor into the hole where the brake hose was attached & operate the pump this should push the piston or pistons out with a bang, don't be tempted to pull it out.
With them out clean bores remove & fit new seals apply smear of brake fluid to lips of seals & refit pistons squarely into bore push them right in then repeat sequence on the other pistons until all replaced.

Re: Brake Caliper Pistons - sinto607276 - 01-05-15

That's a fantastic hint there bandit, simple but absolutely brilliant :-D

Re: Brake Caliper Pistons - anutz - 01-05-15

thanks guys for the input - will be off to find a footie pump adapter in the morning then set to work on both front callipers....

One last question and I take it this is a must - I MUST replace the seals...yes?

no re-use here...

Re: Brake Caliper Pistons - riedrider - 01-05-15

Quote:Love the look of the red spots, where did you get them? Are they the same size as the fzs?

Here from a wider view:

[Image: 30ngo5v.jpg]

FZS600, FZS1000, early R6, early R1, XJR1300, TDM900 and BT1100 have all the same type of calipers.
Yamaha does not allow to disassemble the caliper housings even if somtimes tools are offered for that.
So I did not change the spots I just painted the calipers with black and red caliper colour from Foliatec Wink

Regards

Guenter

Re: Brake Caliper Pistons - fazersharp - 01-05-15

Mine would not turn but when still connected but off the disc being careful not to pop them out completely I squeezed the leaver then gave a good clean and used some red grease and then pushed them back in by hand by hand - in out in- out and then I could turn them by hand. I then disconnected old lines to fit new so never actually took pistons out, I do remember though it was a pain to get the bleed nipple to stop weeping, I cant remember if I brought a new one i the end

Re: Brake Caliper Pistons - sinto607276 - 01-05-15

(01-05-15, 10:52 PM)riedrider link Wrote: Here from a wider view:

I can't see a pic

(01-05-15, 10:52 PM)riedrider link Wrote: Yamaha does not allow to disassemble the caliper housings even if somtimes tools are offered for that.

I thought I read somewhere on here some had removed them, but I'm not certain.

(01-05-15, 10:52 PM)riedrider link Wrote: So I did not change the spots I just painted the calipers with black an red caliper colour from Foliatec

I'll look them up, so that's just caliper paint on the spots?

thanks

Re: Brake Caliper Pistons - bandit - 01-05-15

Not sure my link worked for the image of adaptor anutz but if you look for a red plastic one that's it you normally get one with most air pumps these days, & yes you might get away with using old pistons but always replace the seals as they may be dislodged when ejecting the pistons & will leak fluid.

http://www.ebay.co.uk/itm/5X-Inflating-Needle-Pin-Pump-Air-Valve-Adapter-Sports-Football-Basketball-Soccer-/201329145148

Re: Brake Caliper Pistons - riedrider - 01-05-15

Quote:I can't see a pic

Strange I can see it. And I loaded it up in the same way like the other pictures.
I just painted the spots and the housing in a glossy black. Both colours are a 2 component caliper paint.

Re: Brake Caliper Pistons - sinto607276 - 02-05-15

I see it now, I don't know why I couldn't before :-(
Nice paint job :-)
Really like the red and black, goes well together.

Re: Brake Caliper Pistons - darrsi - 02-05-15

(01-05-15, 09:41 PM)fazersharp link Wrote: Anyone ever use red rubber grease around the seals

Are you kidding me?
How is the Alzheimer's getting on anyway?

Re: Brake Caliper Pistons - darrsi - 02-05-15

(02-05-15, 06:24 AM)sinto link Wrote: I see it now, I don't know why I couldn't before :-(
Nice paint job :-)
Really like the red and black, goes well together.

You only see pictures when logged in.

Re: Brake Caliper Pistons - sinto607276 - 02-05-15

(02-05-15, 08:52 AM)darrsi link Wrote: You only see pictures when logged in.

Yeah I know that but I was logged in and could see the other pics, don't know why it wouldn't show but it's showing now :-)

Re: Brake Caliper Pistons - fazersharp - 02-05-15

(02-05-15, 08:08 AM)darrsi link Wrote: [quote author=fazersharp link=topic=16810.msg193560#msg193560 date=1430512893]
Anyone ever use red rubber grease around the seals

Re: Brake Caliper Pistons - darrsi - 02-05-15

(02-05-15, 09:57 AM)fazersharp link Wrote: [quote author=darrsi link=topic=16810.msg193610#msg193610 date=1430550538]
[quote author=fazersharp link=topic=16810.msg193560#msg193560 date=1430512893]
Anyone ever use red rubber grease around the seals

Are you kidding me?
How is the Alzheimer's getting on anyway?
[/quote]
Whats up with that - its the proper stuff for the job init, I googled it and found that was the stuff to use, now I have got so much left in the tub I maigt start selling it off. When I was doing the brakes I could not find any little sachets so brought a tub
[/quote]

"Anyone ever use red rubber grease...."

Put "red rubber grease" in the search box and see what pops up.
I may have mentioned it a few times. :lol

Re: Brake Caliper Pistons - fazersharp - 02-05-15

oh I seeeeee I thought that by altzheimers you were referring to me being old --- as in its old school stuff and no one bothers with it anymore. Gotcha :thumbup

Re: Brake Caliper Pistons - darrsi - 02-05-15

(02-05-15, 10:43 AM)fazersharp link Wrote: oh I seeeeee I thought that by altzheimers you were referring to me being old --- as in its old school stuff and no one bothers with it anymore. Gotcha :thumbup

You can't beat a bit of red rubber grease on pistons, it's good stuff. Smile

Re: Brake Caliper Pistons - darrsi - 02-05-15

Look on ITV right now, i think they use red rubber grease as moisturiser. :lol

Re: Brake Caliper Pistons - Larsdad - 02-05-15

Hi,

My rear was in a similar state. Popped out the pistons, cleaned first with scotchbrite. When cleaned, then polished with autosol (trick seen on youtube) then a final clean off with brake cleaner so no polish left on.
They then looked brand new.

Took out the seals and scraped the white crystal stuff you always get eventually. Red grease on piston hen slid back in, once bled the back brake can now actually be used without sticking on.

My advice would be to go for it, it will be a bit more tricky for the front, but just take the time it needs and be careful and your brakes will be good as new.

Re: Brake Caliper Pistons - anutz - 02-05-15

thanks for the advice all - I need to get hold of an adapter like bandit showed so once I have that I will be able to crack on - my tensioner gasket arrived so today I will get the engine back in order anyway...

Re: Brake Caliper Pistons - anutz - 02-05-15

Looking at new front seal sets on ebay...

this appears to cost 8.99 for 1 set....i.e. for one piston

http://www.ebay.co.uk/itm/FZS-600-Fazer-5DMC-2001-Front-Left-Brake-Caliper-Full-Piston-Seal-Kit-/130918926987?pt=LH_DefaultDomain_3&hash=item1e7b604a8b

Yet this is 8.99 for 4?

http://www.ebay.co.uk/itm/Front-Brake-Caliper-Seals-Set-Yamaha-FZS600-Fazer-98-03-/200831498651?pt=LH_DefaultDomain_3&hash=item2ec27d799b

Any ideas why they differ so much in price - they cannot be that different?