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+--- Thread: My front brakes are Sh1t (/showthread.php?tid=60195)
Re: My front brakes are Sh1t - Jimmygixxer - 14-09-12
(14-09-12, 02:29 PM)noggythenog link Wrote: Jimmy from what Ive heard we should be able to use 1 finger for some serious braking, i use 4,
Hmmmm sounds like some dodgy teenage boast, i best use a better choice of words in future!!!!
Maybe we're both fat foccers!!!!!
I could be lighter to be honest, but not that bad :lol
Went and seen the guy who supplied me with the Hel lines, he reckoned my brake wasn't too far off what i should expect.
He recons its unlikely to be the master cylinder seals, if it is it could be a bit of dirt stuck. More likely to be abit of air still trapped.
One other thing, the brake fluid i used was from a sealed bottle which i opened about 4 weeks ago.
Surely it couldn't be buggered with moisture already could it?
Re: My front brakes are Sh1t - noggythenog - 14-09-12
Im sure we're all really slim......by american standards!
Ive dieted myself down to a fat b'stard!, only 3 more chins to go!
Re: My front brakes are Sh1t - darrsi - 15-09-12
I didn't say i was fat, i just said i was 16 stone.
When i get on those speaking scales they say "You are 7ft 4" :lol
Re: My front brakes are Sh1t - Fazerider - 15-09-12
Brake fluid from a container that was first opened a month ago should be fine unless you've been storing the bottle in the shower.
If it's air in the system that's causing the sponginess it can often be bled out at a banjo rather than a bleed nipple, tiny bubbles tend to stick in corners and are reluctant to find their way to the official exit. Another technique I've used is to take the calipers off and push the pistons in firmly to sweep stuck bubbles in the lines upwards... if you try this do it one caliper at a time, you want to force the bubbles back up to the master cylinder, not pop untended pistons onto the ground. :lol
You mentioned one side has slight pad movement when squeezing the lever, if it's just the pads moving then it points to the seals, but it might be worth taking a closer look. On a couple of occasions I've found the disc to be the cause of the problem, if it's warped (dish-shaped might be a better description) then the pistons use up a lot of lever movement to flatten the disc... that feels the same as air in the system (but is much more expensive to cure). :'(
Re: My front brakes are Sh1t - darrsi - 15-09-12
Neither of them have mentioned any bad juddering yet, i think the word 'warped' is used a bit too loosely to be honest.
A warped disc is gonna be blatantly felt through the hand when braking at speed. If it is genuinely warped then the disc will spread the pads more when moving so you would have to pump the lever one or two times before getting a horrible juddering response.
Hotspots though, which i believe i have, are very small variations of disc thickness, in my case probably caused by one side of my caliper seizing up and rubbing on the disc by being pushed from one side only and creating too much heat without backing off.
That can be mistaken for a 'warped' disc although technically it's not. I'm getting a hit/miss, grabbing feeling, but only at very low speed braking.
Still bloody costly whichever way i look at it :'(
My bike's getting new Venhill brake lines today/tomorrow, to definitely rule them out, then it's a case of hunting for a sensibly priced pair of discs, which after looking around don't really exist, they're either bloody expensive, or taking the piss expensive!! :eek
The thing about brake issues that i've noticed is that they very slowly get worse over time, so unless you are very meticulous then you tend not to realize anything's wrong for ages.
Once you have them up and running again and functioning correctly you'll be amazed at the difference, and actually be quite shocked at how good these brakes are! :b
You'll find yourself aiming at jaywalkers just to show off your braking power. Or maybe that's just me? :evil
Re: My front brakes are Sh1t - noggythenog - 15-09-12
7 foot 4 darssi, i hope youve got an aftermarket screen on yur fazer,
Maybe you could get an old f4 phantom cockpit screen,
Well ive gone for a little stroll down big wimp street and booked my bike into my local bike garage for them to take a look
Shall update when i find out.
Re: My front brakes are Sh1t - Fazerider - 15-09-12
Agreed, the term "warped" is a bit vague. The only time I've experienced a disc warping (i.e. not flat) it was, as I explained, dish-shaped. There was no run-out and no juddering under braking, it felt exactly like air in the brakes.
Re: My front brakes are Sh1t - darrsi - 16-09-12
Read my post " [color=rgb(51, 68, 102)]Braided Brake Line failure?[/color] ", i've had unexpected results! :woot
Re: My front brakes are Sh1t - noggythenog - 16-09-12
Ive been following your other post darsi
I knew all along that it wasnt because your fat
Thats crazy,perhaps youve just been unlucky, you would expect at 100 quid that braided lines would last a very long time, i seem to remember HEL lines having a lifetime warranty according to the world wide interweb,
I kinda thought braided lines were up to industrial standards.
Do you mind shaming the company or brand name involved?
Glad its sorted out though and at least you know everything thats been replaced now,your misfortune is still a help to many others.
Re: My front brakes are Sh1t - Gnasher - 16-09-12
After 14yrs you need to fit need to fit new main seals make sure you thoroughly clean the seal rebates out before fitting the new seals and replace the master cylinder seals. Check the discs for thickness and run out, clean the semi floating rivets out as they get clogged up with brake dust and stop floating the disc should move slightly but freely on each rivet if not it will give you spongy brakes!
Re: My front brakes are Sh1t - darrsi - 16-09-12
[size=1.35em]They were Goodridge lines that failed, although in all fairness i have no idea how long they were on the bike as they were on it when i bought it?[/size]
[size=1.35em]The bike's 12 years old now so for all i know they could've been put on straight away?[/size]
[size=1.35em]There were no leaks at all, and nothing visual because of the metal braiding and plastic covering, so it was obviously an internal problem somewhere?[/size]
[size=1.35em]It's only because i was chatting about it to a couple of mates that they suggested maybe it's the lines, so after a bit of thinking about it i decided to give it a go, but i was in no way expecting it to work! [/size] :rolleyes
[size=1.35em]The front end of my bike is like 'Triggers' broom in Only Fools And Horses, it's theoretically 12 years old, but i've changed every part of it. [/size] :rollin :rollin :rollin
Re: My front brakes are Sh1t - Oxygen - 22-09-12
Maybe the pad itself is contaminated with oil or some such. Change the pads to rule that out. It's a good start point.
Re: My front brakes are Sh1t - noggythenog - 24-09-12
Ive had my bike into the garage for new pads and fluid, they feel slightly better now,
Interestingly the garage owner said that he thought they felt fine so perhaps it was all in the mind but i just expected more, only thing left is to compare against another fazer sometime.
Still glad i got them changed as the existing pads were all different makes apparently,also ive still got a while to bed them in so fingers crossed.
Re: My front brakes are Sh1t - Deefer666 - 27-09-12
(13-09-12, 06:37 PM)Jimmygixxer link Wrote: Update on the brakes so far.
Fitted new sintered sbs pads on Tuesday, only done 20 odd miles so far but they do seem to have better bite, hard to tell yet as I'm bedding them in.
Fitted new HEL braided lines and fluid today and to be honest I'm not that impressed. Haven't taken it out yet but the lever is only very slightly less spongy at best.
I know that leaves the master cylinder, but is it likely to need re furbed at 10,000 miles, although it is 14 year old?
I cant get my head round how caliper piston seals could make that much of a difference, especially when they don't leak.
Given the choice I never fit HEL Lines to customers bike and normally go for Venhill lines instead. I find HEL dont line the banjos up very well and you end up having to twist the line to get it to fit.
Re: My front brakes are Sh1t - green_rider - 27-09-12
I fitted HEL lines to the bike and redid the brakes. Left the lever cable tied overnight and the brakes were very sharp, sharpest of any bike i've ridden!
Re: My front brakes are Sh1t - Dead Eye - 27-09-12
(27-09-12, 08:57 PM)Deefer666 link Wrote: [quote author=Jimmygixxer link=topic=4548.msg38948#msg38948 date=1347557820]
Update on the brakes so far.
Fitted new sintered sbs pads on Tuesday, only done 20 odd miles so far but they do seem to have better bite, hard to tell yet as I'm bedding them in.
Fitted new HEL braided lines and fluid today and to be honest I'm not that impressed. Haven't taken it out yet but the lever is only very slightly less spongy at best.
I know that leaves the master cylinder, but is it likely to need re furbed at 10,000 miles, although it is 14 year old?
I cant get my head round how caliper piston seals could make that much of a difference, especially when they don't leak.
Given the choice I never fit HEL Lines to customers bike and normally go for Venhill lines instead. I find HEL dont line the banjos up very well and you end up having to twist the line to get it to fit.
[/quote]
What do you mean by the banjos dont line up very well? I've fitted HEL lines (front and rear) to mine and at a guess im assuming you are talking about the double banjo coming at the front master cylinder? Everything was fine with my setup though...