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Bikes, Hints'n'Tips => FZS600 Fazer => Topic started by: Rikki on 27 February 2015, 01:10:02 pm

Title: Brakes...Help!
Post by: Rikki on 27 February 2015, 01:10:02 pm
Hi folks

I've just been cleaning my calipers, put rubber grease on the pistons etc. When I was pushing them back in, one of them popped out - not completely but enough for a few drips of fluid to leak out.

What consequences might this have? Not sure if any air got in the caliper or not.

Any advice?
Title: Re: Brakes...Help!
Post by: darrsi on 27 February 2015, 02:22:51 pm
When you say popped out, did it go past the seal?
Title: Re: Brakes...Help!
Post by: Paulfzs on 27 February 2015, 02:35:38 pm
bleed the brakes dont risk it !


20 minutes of messing around is better than weeks of being deaded because your brakes stopped working and you hit a roaming cow
Title: Re: Brakes...Help!
Post by: darrsi on 27 February 2015, 02:44:51 pm
bleed the brakes dont risk it !


20 minutes of messing around is better than weeks of being deaded because your brakes stopped working and you hit a roaming cow


Pesky Roman cows.

Title: Re: Brakes...Help!
Post by: Rikki on 27 February 2015, 03:18:20 pm
Think it must have edged past the seal (or at least part of it - was at a slight angle when it happened) in order for the bit of fluid to leak out. It slipped straight back in though & was only out of place for a fraction of a second.

Would bleeding remove any potential bubbles in the caliper? I think I read about a technique on here where you remove the master cylinder cover, tie the brake lever back & leave it for a few hours for bubbles to migrate to the top of the system. Or it could have been a dream, I'm not 100% sure. Anyone else heard of this?
Title: Re: Brakes...Help!
Post by: Paulfzs on 27 February 2015, 04:03:09 pm
bleed the brakes dont risk it !


20 minutes of messing around is better than weeks of being deaded because your brakes stopped working and you hit a roaming cow


Pesky Roman cows.


 :rollin :rollin :rollin :rollin :rollin :rollin :rollin :rollin :rollin
Title: Re: Brakes...Help!
Post by: HarryHornby on 27 February 2015, 04:17:40 pm
If it's the rear caliper on a 600 I wouldn't bother, they're shite and ain't gonna stop you hitting a cow from any culture, bled or unbled!  :b   (Says he who's going to be giving his 600 rear caliper some maintenance love this weekend)
Title: Re: Brakes...Help!
Post by: darrsi on 27 February 2015, 04:40:51 pm
Think it must have edged past the seal (or at least part of it - was at a slight angle when it happened) in order for the bit of fluid to leak out. It slipped straight back in though & was only out of place for a fraction of a second.

Would bleeding remove any potential bubbles in the caliper? I think I read about a technique on here where you remove the master cylinder cover, tie the brake lever back & leave it for a few hours for bubbles to migrate to the top of the system. Or it could have been a dream, I'm not 100% sure. Anyone else heard of this?


Yep you heard right, I normally do that trick after my brakes have been bled, it tends to sharpen them up that little bit more, so definitely worth a go. Best to leave it over night though.
If you loosen the MC lid make sure the bike won't get touched and I normally stick loads of rag around it in case of any accidental spillage.
I've been known to leave something on my seat to remind me as well, I'm not a morning person!
Title: Re: Brakes...Help!
Post by: Jules-C on 27 February 2015, 04:48:06 pm
If the brake feels normal and not spongy you haven't let enough air in to be a problem.  But bleeding it won't do any harm either way.
Title: Re: Brakes...Help!
Post by: Rikki on 27 February 2015, 06:22:38 pm
If it's the rear caliper on a 600 I wouldn't bother, they're shite and ain't gonna stop you hitting a cow from any culture, bled or unbled!  :b   (Says he who's going to be giving his 600 rear caliper some maintenance love this weekend)

I hear what you say about the rear caliper. Just spent a couple of hours on that one alone. Pushed the pistons out & cleaned them. Would they go back in? Hell no. Used a G-clamp to apply pressure. Broke the G-clamp! Used a bigger G-clamp. Faffed about for a l-o-n-g time & finally got them in far enough to get it back on again.

Haven't been for a test ride yet - will do this over the weekend & report back with the results. Right now though it's time for the pub!

Cheers all!
Title: Re: Brakes...Help!
Post by: darrsi on 27 February 2015, 06:30:12 pm
If it's the rear caliper on a 600 I wouldn't bother, they're shite and ain't gonna stop you hitting a cow from any culture, bled or unbled!  :b   (Says he who's going to be giving his 600 rear caliper some maintenance love this weekend)

I hear what you say about the rear caliper. Just spent a couple of hours on that one alone. Pushed the pistons out & cleaned them. Would they go back in? Hell no. Used a G-clamp to apply pressure. Broke the G-clamp! Used a bigger G-clamp. Faffed about for a l-o-n-g time & finally got them in far enough to get it back on again.

Haven't been for a test ride yet - will do this over the weekend & report back with the results. Right now though it's time for the pub!

Cheers all!


Shouldn't be that tough to push back in at all.
Title: Re: Brakes...Help!
Post by: Paulfzs on 27 February 2015, 07:08:54 pm
my original rear took tones of pressure to get back in, my fzs thou caliper i can do with my fingers