Still having a couple issues with my brakes.

[yuri2085]

Ok I will try and break it down and mention the important things that have happened.

Frontleft caliper: Taken apart, cleaned visible areas of pistons and the rest of the caliper...replaced brake pads (was no pad at all left) + put on the anti squal plate business.


Front right caliper: Took off and wiped the visible area of pistons with them not pumped out, could not remove brake pads because I shredded the head of the pin that holds them in (It cant be undone, I will have to destroy the pin and dont have a replacement).
The pads are pretty worn aswell, but there is a little bit visible -_- (I will order a new pin and get some pads asap)

When the front left caliper was off, the wheel span amazingly; with old pads and new pads it was noticeably stiffer with front left attatched (but as in previous thread wasnt a big deal unless very cold with old pads + before clean).

Attempted to bed in the new pads, started pumping the brakes first and the fluid level actually rose, even though I spilled some while cleaning. If I stand there pumping constantly eventually it gets firmer and causes good braking; but after 3 seconds the braking is pathetic and if the lever is against the handlebars it can still be pushed along if you try hard.

(so didnt really get any real bedding in done..)
When I gave in and decided I will try again once I can clean the other caliper and replace the pads, I noticed the right hand disc was cold and the left disc slightly warm which implied the piston (on the right) is jammed? but why on earth would be be jammed so far from the disc that it causes no braking at all (the wheel freespins the same amount with right caliper on and off). But the reason I even looked at my brakes in the first place was because I assumed the front wheel should be freespinning more. (see previous thread for problems in the cold with them jamming)

Can anyone make sense of all of this? Thanks ^^

[st3v3]

To simplify; the right side brakes dont really have an effect but it causes the wheel to be stiffer while rotating when the caliper is bolted on? How are the wheel bearings?
____________________
Roger wrote: Women don't get damp for clingy puppies. Get some better happy pills, hit the gym & buy a medallion the size of a dinner plate. Job done

[yuri2085]

Yer my right brake caliper has no effect on the wheel at any time (Hopefully it will once I have managed to replace pads)

Left brake caliper now and before causes the wheel to spin less when attatched but NOW dosnt actually cause significant braking unless the brakes are pumped 100 times (exaggeration).
I am asusming wheel bearing are fine seeing as it spins very nicely (more than i expected it to seeing as it has always been a little stiff, but I assume the pads are going to be touching the discs all the time in working brakes anyway?) When the left caliper is removed.

[yuri2085]

Ok I'm guessing the lack of braking is due to me needing to bleed my brakes, am assuming when the brake fluid leaked from behind the pistons air bubbles got in of course.
The haynes manual states that you must replace the dust seals after you have removed the pistons when you are rebuilding brakes, I didnt not remove the pistons completely (only a small gap appeared behind the piston and brake flui spilled out because it was pushed too far out)

[st3v3]

The replacing of seals isn't necessary unless the ones in question are damaged in some way.

I'd say re-bleed them and try again from scratch, if you do it correctly and there is still something wrong then I'd be getting it to a techy in the shop but it sounds like they just need sorting. Brakes aren't the easiest job I hate it.
____________________
Roger wrote: Women don't get damp for clingy puppies. Get some better happy pills, hit the gym & buy a medallion the size of a dinner plate. Job done

[yuri2085]

Alright well i have managed to sort out the pin and brake pads in the other caliper, just about to bleed them.
Just for my piece of mind how much would you expect non applied brakes to be restricting the freespin of the front wheel?
aka, how easily does your front wheel spin?

[st3v3]

I wouldn't really be expecting it to be restricted much at all, it should spin a good few of cycles before it starts slowing down depending on how fast you spin it, best bet is to spin it slow(quite lightly) and see how long it takes to stop, should take a good few seconds. Is there any grinding from around the disks while it's in motion?
____________________
Roger wrote: Women don't get damp for clingy puppies. Get some better happy pills, hit the gym & buy a medallion the size of a dinner plate. Job done

[yuri2085]

Yes there is, there always has been hence the clean of the brakes where i discovered the pads were completely fucked.
I have only been for a little one mile ride attempting to bed them in since installing; and there was an improvement but its still pretty restricted.
I will go for a nice ride today and see how it is at the end.
There is still visible dirt on the pistons but I cleaned SO much shit off and the rest wont really come off so there is a large improvement in their movement.