K75 brake pad pins in the front

[andwew]

Hi everyone-

I just recently got a 1987 K75 and I already love it. Seems everything is running strong and smoothly.
Only tiny issue I have right now is that the front disc brake screams whenever I use it. I figured I'd try out throwing on some of the disc brake quiet on the pads to see if it alleviates the noise.

I popped the covers off and got to the part where I have to push out the pins. I can not get them out if my life depended on it.
I've hammered the inside of the pin with a hex key, screw driver, whatever I could find but I can't get it to budge out.

I also tried pulling on the other end really hard with pliers  :dunno2:

I really don't want to disassemble the calipers.

Anyone have any tips or suggestions on how to get those pins out?

Thanks. I am a noob :dunno

[Motorhobo]

I don't have the answer but I'm going to have the same problem as you, since I stupidly wire wheeled off the cadmium coat on those pins and now they're all rusted to hell. I do know from experience that hammering on any pin won't help get it out because the end you hammer on will compress and expand, and soon It'll have a greater diameter than the hole it's supposed to go thru.  A gentle tap should suffice, and if it doesn't, add WD -40 till it does but don't increase the tapping force to the point of being destructive.

I'll probably have to put a little cutting wheel on the Dremel, cut off the tip and drill the rest out, then get new pins from Brembo. Fortunately the pads were new when I took off the rust-protective cadmium, so sounds like you've got a more critical situation...still, new pins might be in your future sooner than mine unless someone else has a better suggestion.

[Motorhobo]

Actually -- if my memory serves me, you're not supposed to tap on those pins at all -- there's an indent on the thick side and you're supposed to set the needle noses there and wedge the pins out. Small curved needlenoses are perfect for that. If you've been hammering on the thin end of the pin, you're probably Ok, since ghe diameter there is narrower anyway.

Try lubricating the pin and prying it out at the indent. Don't put pliers on it and pull. Use needlenoses and pry against the body of the caliper.

[andwew]

Hey thanks man! I'm going to try that and let you know how it went :clap:

[Chaos]

Isn't there a thin spring steel strip that runs between the 2 pins securing them?  Once that is out of the way use a screwdriver to loosen the old pads (push the pistons back) to give some wiggle room, pins should come out easily. 

Found a pic of a torn down caliper.  Push the spring clip clear of the pin it is not attached to and remove that pin.  Then the middle and other pin can be removed.  Hope my memory is right about this, sorry if I'm stating the obvious but you never know!

[andwew]

Hey thanks guys! You called it! I pried them out with pliers as opposed to hitting the opposite end. The pins definitely needed lubricant too. I got the pads out and back in in ten minutes. Applied disc quiet and now they're completely silent! Feels good. Thanks guys! Plan on hearing a lot more from me in the futurw :2thumbup:

[rbm]

Did you use copper antiseize on the pins when you reassembled?  Longer lasting than petroleum based lubricant.

[Marinahosy]

I've noticed that when the brakes heat up, there is more of a dry hissing type sound than when cold.  I 1st noticed it on my CBR and decided that it's just the way brake pads sound since they took the asbestos out of them.  I have not noticed any decrease in brake performance when making this sound.