Help!!

[MrGrumpy]

A bit of a cluster f this morning was checking out my brakes on the CX and found out that the screws holding the pads in are made of cheese ! End result the end is chewed to bits and screw is seized in see pics below. Any ideas how to get said screw out and if not can you buy cAlipers on their own ? It's an RS 785 shimano

 

[MichaelW2]

An ezy-out style bolt remover will do the trick. A better quality bike shop may have some and the experience to do the job. You drip a small pilot hole in the bolt, screw in the left-hand threaded extractor and keep rotating.

 

[MrGrumpy]

That's my plan tomorrow at work think I have a set in my locker . Pretty poor quality screws are really soft. Not many places online selling caliper on their own !

 

[Andrew_P]

That's my plan tomorrow at work think I have a set in my locker . Pretty poor quality screws are really soft. Not many places online selling caliper on their own !

I did it as well, I blamed whoever set the bike up from new doing them up too tight. I barely do them up now and you have reminded me to go looking for a Allen key type bolt to replace them. Awful diesign not only using a flathead screw top but also then making it of cheese

I had to order a new one :-(

 

[Andrew_P]

That's my plan tomorrow at work think I have a set in my locker . Pretty poor quality screws are really soft. Not many places online selling caliper on their own !

https://www.amazon.co.uk/dp/B00N52XNP4/ref=pe_385721_141877181_TE_dp_1 My view was it was £30 as it comes with a £20 set of pads! I was desperate had a about a weeks worth of riding left in the pad and other bike wasn't working.

 

[gbb]

Experience tells me you may well struggle to get a pilot hole small enough, straight enough without wandering into the host material, and the extractor you'll have to use is so small, you'll struggle to get the torque to undo an already extremely tight screw.
That said, you may be able to do it.

If you went down Andrews route and brought a new one, I'd be undoing and applying antisieze to everything I could.
Looking at the photos, is that a pin or a screw ? Can you cut the head off and pin punch it out then replace the pin, assuming it is a pin and one is available ?

 

[MrGrumpy]

It's a screw but looking online some pads come with a split pin. Thinking even if I can just drill it out maybe a split pin instead of a screw ? Not sure they would move about much anyway ?? Pure sh...t design !

 

[Racing roadkill]

Another vote for an EZ out type of dealio here. Get the cheese screws out, then get some decent stainless replacements.

 

[MrGrumpy]

Bona fide shimano resin pads come with split pins ??? Hmm think I can see where this is going ! Drill this bugger out tomorrow!

 

[MrGrumpy]

Ok drilled out and never actually made a right James Hunt of it However, being so small, it was always going to be tall ask and that screw was well stuck in. Drilled out and even got my extractor in but all it did was chew up some more. So drilled out the hole but have now lost the threads, a split pin does fit and fairly snug. So do i take the chance with this or replace the whole caliper?? Any recommendations on a bleed kit for shimano disc brakes?

Update managed to run a 4mm tap through the hole so recovered caliper ! However still need a recommendation for a bleed kit ?

This one much good ?
http://www.halfords.com/cycling/bike-parts/bike-brakes/shimano-specific-workshop-bleed-kit

 

[MrGrumpy]

Ok decided on epicbleeds kit instead , and my usual haunt for bike stuff merlin cycles had good offers on new pads so stuff awaiting delivery ! From disaster to recovery :-)

 

[MrGrumpy]

Just updating the final outcome, so for those whom end up in this mess as I had, all perfectly doable if you have access to the right tools ! Anyway bleeding them was easy very straight forward, although noted when I had come back from my holiday that there has been some seepage, so quick nip up of the olive nut and all good again. Point to note, have now put a tiny amount of grease on the small screw pin and not nipped it up too tight. Oh and I now own some brake cleaner as part of my tool kit !

 

[russellchapman]

Make sure your next bike has allen key bolts everywhere. I don't have all the tools you needed so would have been a right faff to be in your situation