OK - pretty straight forward to carry out, but I always feel better if I can look at some pics and a run through before I start. In that vein, I thought I would return the favour for all the times I've seen and used similar threads myself. Please forgive the slightly incomplete picture run but some didn't come out. Also PLEASE remember to be careful not to contaminate your pads/discs when using release oil around your brake assembly...
1. Unhook the lever spring using long nose pliers and use a good dose of wd40 and a wire brush to clean up the area around the central nut.
2. Remove the nut (mine was a 13mm) and clean around the face of the splines at the bottom of the shaft with wire brush and more wd40.
3. Use a pair of pump pliers to hold the face of the plate and wiggle it off of the splines. DO NOT LEVER THE PLATE OFF. There is a rubber cup sitting behind the plate and you can't see it (I've shown the off-side caliper here, the rest of the pics show the nearside caliper). I missed this at first and split the rubber dust cup trying to lever it off.
![Image]()
As you can see in the next pic, the inside face of the plate is severely corroded and the corrosion has scored and cut the inside of the dust cup. You can also see the split in the rubber cup where I tried to lever the plate off.
![Image]()
Time for some more wd40 and wire brush treatment.
![Image]()
When you clean the base plate, you're going to need to use something to protect the rubber dust cup and also hold it out of the way of the wire brush. I used an old chisel which allowed me to get back to the metal all the way round.
![Image]()
OK - the next pic shows the inside of the plate where I have cleaned the corrosion away. I gave this a smear of copper grease before I put it back on. I also packed copper grease inside the rubber dust cup.
![Image]()
The plate taps easily back onto the splines in the fully disengaged position, right up against the stop edge that limits the lever's travel.
![Image]()
All that is left to do now is replace the nut and pop the spring back in. Job done. I don't have a picture of it completely re-assembled as that was one of the pics that didn't come out.
I hope this helps someone. I was right on the verge of buying a new caliper until I tried this. Worked like a dream and may well give me another couple of years out of an otherwise knackered bit of kit.
We love it when that happens...
Spongo :ILU::ILU::ILU:
1. Unhook the lever spring using long nose pliers and use a good dose of wd40 and a wire brush to clean up the area around the central nut.
2. Remove the nut (mine was a 13mm) and clean around the face of the splines at the bottom of the shaft with wire brush and more wd40.
3. Use a pair of pump pliers to hold the face of the plate and wiggle it off of the splines. DO NOT LEVER THE PLATE OFF. There is a rubber cup sitting behind the plate and you can't see it (I've shown the off-side caliper here, the rest of the pics show the nearside caliper). I missed this at first and split the rubber dust cup trying to lever it off.
As you can see in the next pic, the inside face of the plate is severely corroded and the corrosion has scored and cut the inside of the dust cup. You can also see the split in the rubber cup where I tried to lever the plate off.
Time for some more wd40 and wire brush treatment.
When you clean the base plate, you're going to need to use something to protect the rubber dust cup and also hold it out of the way of the wire brush. I used an old chisel which allowed me to get back to the metal all the way round.
OK - the next pic shows the inside of the plate where I have cleaned the corrosion away. I gave this a smear of copper grease before I put it back on. I also packed copper grease inside the rubber dust cup.
The plate taps easily back onto the splines in the fully disengaged position, right up against the stop edge that limits the lever's travel.
All that is left to do now is replace the nut and pop the spring back in. Job done. I don't have a picture of it completely re-assembled as that was one of the pics that didn't come out.
I hope this helps someone. I was right on the verge of buying a new caliper until I tried this. Worked like a dream and may well give me another couple of years out of an otherwise knackered bit of kit.
We love it when that happens...
Spongo :ILU::ILU::ILU:
