Brake pad retaining pin removal

[Hooli]

I've been loctiting mine for a while now, none have fallen out and they unscrew fine.
You can get longer ones off eBay that use an R-clip, I think for a Honda 600 something. I've got one fitted to replace one that fell out, no R-clip though as I forgot and it got eaten as I unscrewed the pin.

[Big Phil]

another way is to remove the half bolts and with the caliper in a vice, start to revolve the top of the caliper backwards and forwards to work the pin loose - once one side is off then take caliper out of the vice and place the pin in the vice and again start to move backwards and forwards till it works loose

when rebuilding run a drill though the holes to clear out any alloy corrosion on the sealed end don't go to deep or you will drill through the back of the caliper

Hi Del, This is pretty much what I was thinking in my second option. It seems the easiest method in many ways as I''m stripping the brakes completely anyway. The worry I have is as I twist the calliper to release the pin will this force simply crack the casting? I have not been able to find anything on the internet where this method has been used so I'm a little reluctant to try it. Have you or anyone else had experience of doing it this way?

[mlivkovich]

I tried to put pin in vice but pins would not move, they tend to crack. Only heat helped me to unwind them out.

[Big Phil]

I tried to put pin in vice but pins would not move, they tend to crack. Only heat helped me to unwind them out.

That's exactly my worry Mlivkovich that the casings crack. So from your experience I am now going to add heat from a blow torch as well as force.

Thanks for posting🤗

[Del]

@Big Phil - not sure it this will help you - I have refurbished a lot of Tokico calipers (think its getting close to 3 figures) - and never had a casing crack on me doing this to remove the pin

Im not saying just half the calipers and stick in a vice and start wailing on them - I would use penetrating fluid every few hours to get into the crud and where I deemed necessary some heat (too much heat makes the alloy brittle)

the only other way is to soak in penetrating fluid then use a set of vise grips in the pin and move backward and forwards the issue with this is that you are fighting the pin on 2 faces so twice the resistance - this generally lead to the vise grips slipping and needing reset

if you have a Dremel with a cutting disc then you can cut the pin close to the double open end side and try to tap it out with a drift - this is more of a shock on the caliper than the initial option I suggested

Hope you get it out mate

Del

[mlivkovich]

I tried to put pin in vice but pins would not move, they tend to crack. Only heat helped me to unwind them out.

That's exactly my worry Mlivkovich that the casings crack. So from your experience I am now going to add heat from a blow torch as well as force.

Thanks for posting🤗

Maybe I was misunderstood.... I meant that pins wouldn't move without heat. Pins would break (crack) before I could unscrew them if only held in vice. Heat helped to "melt" loctite and I hammered torx bit because allen key holes in pins were already damaged. Caliper body would not crack unless you hit it with hammer. Little heat wont't hurt them.

[Big Phil]

Hi Del,
           

@Big Phil - not sure it this will help you - I have refurbished a lot of Tokico calipers (think its getting close to 3 figures) - and never had a casing crack on me doing this to remove the pin

Im not saying just half the calipers and stick in a vice and start wailing on them - I would use penetrating fluid every few hours to get into the crud and where I deemed necessary some heat (too much heat makes the alloy brittle)

the only other way is to soak in penetrating fluid then use a set of vise grips in the pin and move backward and forwards the issue with this is that you are fighting the pin on 2 faces so twice the resistance - this generally lead to the vise grips slipping and needing reset

if you have a Dremel with a cutting disc then you can cut the pin close to the double open end side and try to tap it out with a drift - this is more of a shock on the caliper than the initial option I suggested

Hope you get it out mate

Del

Hi Del, That you have carried out that many refurbs has to be the way to go then. It really is reassuring when your getting help from someone with that experience so I will follow your method.

As I was posting this came from Mlivkovich and he also states the callipers won't crack.

[/quote]


Maybe I was misunderstood.... I meant that pins wouldn't move without heat. Pins would break (crack) before I could unscrew them if only held in vice. Heat helped to "melt" loctite and I hammered torx bit because allen key holes in pins were already damaged. Caliper body would not crack unless you hit it with hammer. Little heat wont't hurt them.
[/quote]

Anyway thanks ever so much to you both and everyone who has offered me help. It really is very much appreciated.

Kind Regards to All
Phil

[Big Phil]

Hi Del,
           Just wanted to say a MASSIVE THANK YOU👏👏👏👏 

Retaining pin out of one caliper this evening will do the other tomorrow.

Again thanks to everyone who has offered help and advice.

Kind regards
Phil

[Del]

Glad you got it sorted mate