darn and blast....i got brake fluid all over a brake pad (the important side)... Do i need to scrap it, or will it be ok with a clean with brake cleaner...?
DanielB. Depends how much. If they were saturated then replace. If just a splash clean them of with some petrol and give them a light sand of the medium emery. And dry out well. Should do the trick. Next time make sure you clean the disc's with brake cleaner to make sure they are clean and don't contaminate new pads. Hope this helps. Regards Joe.
Thanks Joe. Saturated...I didn't realise when I had them off that as I was cleaning everything else the old fluid had pooled....guess where...right where my pads were sitting. Ah well.... what's another 25 quid when I'm this far in These calipers are turning in to "Triggers broom"!!
DanielB You are not on your own mate I certainly have doe similar as I am sure a lot of patrons on here would say. New pads will be a whole new lease of life to add to the work already carried out. Let us all know how you get on. Regards Joe.
I reuse pistons like this with no problem as that pitting is where the crud gets into the rubber boots...if you have them apart then measure the actual depth that the pistons can retract to ...most will still be slightly proud of the caliper and nowhere near the seal which normally sits further down the bore...but if it does then by all means replace them.
thanks... I have however decided to replace the pistons. I have got a whole new set of pistons and seals (for two calipers) all for £100....so I am feeling like I am quids in - sort of... Whilst I hear what some of you are saying, I feel I won't rest easy unless I replace the pistons... Plus, it's always nice to have a package turn up in the post! (plus, plus, I put the address in my wife's name, so she will think she has a gift...)
Afternoon all, progress is going good...but can't find a torque setting for the 4 (silver in photo) bolts that clamp the two halves of the caliper together. Any thoughts?
I also thought this may be useful to share? Apparently it works for very stuck pistons too! Just find a socket that fits. Twist and pull! https://photos.app.goo.gl/BpjwwouLg5A8uHgB9
I had thought that was indeed the only way Capt, however the foibles of my 955 calipers is that the air gun won't work. And, if it does, it'll only do so on one pair of pistons from each caliper.... I could have bought an airgun...but I already had some sockets!
Put a block of wood in between the opposing pistons , all will move , lube and compress back in , reapply air , repeat until you can remove pistons. They will work loose. I used a lanolin based spray lube internally and rubber Grease externally. I pulled the the calipers apart on my last 2000 sprint this way.
