Front brake rubbing

[BribieDuc]

During the last visit to the workshop, I was advised to replace the front brake pads.  For the first time ever, I decided to do this myself - however, on dis-assembly, I discovered the pads are no where near the wear line so I simply reassembled.

Now I have a mild rubbing on the disc..so took them apart again...sanded the pads and reassembled.. all fixed. but after applying the brake once, the noise is back.  Are the pads not coming fully off the disc..or is this normal...am I missing something??

Thanks for any advice in my quest to become increaasing self-sufficient.

John

[dragonworld.]

So long as the wheel rotates without any real effort its fine. The days of having to "shave" material off pads to suit are long gone!
Hearing the pads softly rubbing against the disc when the wheel turns is normal. 

Hmmm I wonder what the shops rationale was for the pad replacement?? 

[Betty]

Hmmm I wonder what the shops rationale was for the pad replacement?? 

umm .... $$$

What? Cynical? Me?  Never 

[loony888]

wearing the wear grooves on the pads away completely is maximum wear, shops will often reccomend replacement once the pad material is half gone, usually because they're nowhere near as efficient as new or near new pads, also, the temperatures generated pass through to the brake fluid much easier degrading performance further. of course, turning a profit wouldn't come into it at all..........
dragonworld is right, the pads will sit against the rotor and rub slightly, as long as they're not binding, which you would notice by the effort required to turn the wheel, all is ok. did you inspect the calipers? were they clean? especially around the pistons as a build up of road grime and brake dust will stop them retracting completely causing the potential binding.


paul.

[dragonworld.]

umm .... $$$

What? Cynical? Me?  Never 

"Corse" not Betty!! 

It didnt cross my mind either. (MUCH!!) 

[Dockstrada]

During the last visit to the workshop, I was advised to replace the front brake pads.  For the first time ever, I decided to do this myself - however, on dis-assembly, I discovered the pads are no where near the wear line so I simply reassembled.

Now I have a mild rubbing on the disc..so took them apart again...sanded the pads and reassembled.. all fixed. but after applying the brake once, the noise is back.  Are the pads not coming fully off the disc..or is this normal...am I missing something??

Thanks for any advice in my quest to become increaasing self-sufficient.

John

Did you have a front on a stand when you replaced the pads? if so did you undo the front axel bolt at any time ?

[loony888]

Did you have a front on a stand when you replaced the pads? if so did you undo the front axel bolt at any time ?

good point vince!
make sure you nip the axle up and tighten the pinch bolts with the wheel ON THE GROUND. the stand can cause the front end to sit slightly out of whack if you tighten everything on the stand.


paul

[Dockstrada]

good point vince!
make sure you nip the axle up and tighten the pinch bolts with the wheel ON THE GROUND. the stand can cause the front end to sit slightly out of whack if you tighten everything on the stand.


paul

Spot on Paul  give the front end a bit of a bounce on the ground to get it all aligned before you nip it all up.Its always a good idea to lube the pistons cant remember the name of the stuff (maybe Paul knows) but you will need to pull them down, helps the pistons to pull right back.

[BribieDuc]

Thanks all. 
Happy with front now - just the rear bearings (other posts) to complete.