Grumpy Old Git Posted August 30, 2016 Posted August 30, 2016 Ok,It is rare that I need help but this has got me beat. It would appear that the last owner either tried to remove the pad pins and rounded out the hex socket head or, did it when replacing the pads.Anyhow, I've tried 'plus gas' - a good soaking; hammering a hex drive into the head; hammering in a Torx drive into the head; mole grips on the other end; impact driver; NO MOVEMENT AT ALL!Tried heating the calliper body using a hair dryer; tried cooling the pin with freezer spray - Still nothing!I'm (very) reluctant to drill into the head to try and use 'screw extractors' so, any other tips?NB. YouTube shows cutting through the pin and/or dismantling the whole calliper - Don't want to do that as it will require a complete new set of (expensive) seals.In case you can't view my profile - The bike is a 2007 Rocket III Quote
Mr Fro Posted August 30, 2016 Posted August 30, 2016 If you cut the pin at the back side and take the pads out, would you have enough of the pin left to get some grips on or file a couple of flats on for a spanner?I can't find any decent pics on the internet... Quote
Bhawk Posted August 30, 2016 Posted August 30, 2016 this may be of help"> " onclick="window.open(this.href);return false;Unfortunately i dont know the bike so that as much as i can help.Hope you get it figured Quote
Tango Posted August 30, 2016 Posted August 30, 2016 I've got an angle grinder...... What about a replacement caliper?.......see if it's used on any other bikes as you may find them cheaper...... Quote
Stu Posted August 30, 2016 Posted August 30, 2016 I have found splitting the caliper is the easiest way to be honest GoG and never have had to replace the seals due to splitting! You can leave the pistons in the calipers and just watch for the two O rings dropping out then a bit of heat and a set of mole grips on the pin has always seen me right Quote
megawatt Posted August 30, 2016 Posted August 30, 2016 I drilled one out to just less than the core diameter of the thread. Then hammered a torx bit in. Quote
Grumpy Old Git Posted August 31, 2016 Author Posted August 31, 2016 Hit it with a hammer I have four different weights of hammer - as the pin is threaded, which bit of the pin would you advise me to hit with which weight of hammer and how hard! With comments like that - I may 'forget' that I still owe you a beer! Quote
Grumpy Old Git Posted August 31, 2016 Author Posted August 31, 2016 I've got an angle grinder...... What about a replacement caliper?.......see if it's used on any other bikes as you may find them cheaper...... The same calliper (and seals) are used on various Triumphs (it is the 2+2 pot type) - A few on-line suppliers have the seal kits (and are cheaper that the OEM shop) but still expensive.I may resort to just trying to split them (as Stu suggests) and re-use the current seals.NB. I too have an angle grinder!Currently I'm not 'happy' to continue riding it until I get the new pads in (and the sun is shining again today ). Quote
Joeman Posted August 31, 2016 Posted August 31, 2016 How much meat left on the pads?Ride about with the brakes on to wear them flat, or could you put a bit of sandpaper over the disc to sand the surface of the pads flat? Last resorts to keep you riding.. Quote
Stu Posted August 31, 2016 Posted August 31, 2016 You can split it and leave the pin and fit the new pads over the pin reassemble then off you go Leave the pin for winter Quote
Hoggs Posted August 31, 2016 Posted August 31, 2016 With comments like that - I may 'forget' that I still owe you a beer! OOOH I'd forgotten about that!! Quote
Guest Posted August 31, 2016 Posted August 31, 2016 Can you get a bolt into it, weld the end up and use the bolt to undo it Quote
Grumpy Old Git Posted August 31, 2016 Author Posted August 31, 2016 Re-use current pin(s) after splitting and replacing pads - Option.Ride as is - not on as pads are VERY close to being just plain metal and, they would damage my shiny new discs! - Not an option.Cut pin, remove old pads (spring may be able to be removed?) then get to 'grips' with the pin shank and try and remove (without bending the pin) - Possible option.Weld bolt onto head of pin - Not an option (not enough visible of the pin 'head' to weld (even if I had a welding kit) - Not an option.Looks like first option is the way to go - however, if I've split the callipers, then I might as well try and 'grip' the pin and get it out.Shame it's not 'Chinese' as a swift tap with a hammer (as Hoggs suggested) would shatter the pin completely! Quote
Grumpy Old Git Posted September 2, 2016 Author Posted September 2, 2016 OK,So I split the LH calliper, removed the spring (in surprisingly good condition) and the pads.Soaked the treaded end of the pin with plus gas (again), tried molegrips - No joy!Heated exterior of calliper applied mole grips - slight movement?Soaked again in plus gas and left for an hour. Heat and mole grips again, - and - 'snap' the pin sheared about 1/4 inch up from the calliper body! Centre tapped the sheared end and applied small diameter drill bit (hammer action) to see if that would get it turning - Answer no! Another soaking with plus gas and left for tonight. tomorrow I will try putting the remaining pin stub in the vice and try turning the calliper body off (rather than molegrips). Will try with heat also.Once I get this one out (and the calliper rebuilt), I will attempt the right hand one (but I am going to re-use the old pin on this one (just clean it up and leave it in place), Quote
Stu Posted September 2, 2016 Posted September 2, 2016 sounds like someone has skipped a bit of servicing! Hunt them down and poke them in the eye Quote
Grumpy Old Git Posted September 3, 2016 Author Posted September 3, 2016 It was 'garage serviced' and as I never 'name and shame', I will not mention that the garage which carried out the 809 mile; 3,190 mile; 6,819 mile and 13,565 mile (in October 2014) was Bill Smith Motors (Gwynedd), Cyttir lane, Bangor. LL57 4DA.I've sent them a message of how I feel about their level of skill! Anyhoo - I've had brekky so, back to task of trying to remove the bl@@dy pin! Quote
Grumpy Old Git Posted September 10, 2016 Author Posted September 10, 2016 Sorted (at last!).Took a lot of wrangling to get the broken pin out. Other calliper, I removed the pin after 'hammering' in a 'star' drive' and then using a impact driver to get it moving!Anyhoo - Brake oil changed and bled. Brake lever pulled back and tied - It will stay like that all week (as I am off sailing) so everything should be OK to commence the 'running in' for the pads & discs on my return.Thanks for everyone's suggestions. Quote
Guest Posted September 10, 2016 Posted September 10, 2016 well doneWhere you off sailing on a bike? Quote
Grumpy Old Git Posted September 10, 2016 Author Posted September 10, 2016 Solent - It is shallow enough! Quote
Hoggs Posted September 12, 2016 Posted September 12, 2016 'hammering' in a 'star' drive' See I told you hitting it with a hammer would work Quote
Grumpy Old Git Posted September 21, 2016 Author Posted September 21, 2016 This took a 'club' hammer, a now 'mangled' star drive bit fitted in an impact driver.Oh, and a few choice swear words for good measure! Quote
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