tiddy1 Posted October 6, 2002 Share Posted October 6, 2002 Can anyone tell me how to stop my front brakes squealing like pigs, The are 4 pots with 1144 pads which I bedded in as per instructions but they only squeel on the last 10 feet braking i.e less than 5mph at all other times they are great but is rather imbarrasing I have dynalite calipers and I have tried, cleaning them, copper slip, the selfadhesive pads supplied by mintex, swapping the pads round etc but to no avail, I dont know if you can get shims for dynalites Any suggestions? Simon Link to comment Share on other sites More sharing options...
philwaters Posted October 7, 2002 Share Posted October 7, 2002 Can't help, but am very interested in this as mine do the same. I have Hi-Spec 4 pots up front and Green Stuff pads. Again, it is the last few meters of a braking zone when they squeal and anounce my arrival. I have borrowed some Ferodo DS3000 pads to try out as my GS ones deffinitely seemed to be glazed when I last took them out. I cleaned them up, more copperslip and they worked fine... for about 5 minutes Strange thing is that Steve Mell's brakes are identical and says his are perfect fine - am I just not using them hard enough? Any one out there know what to try if the pads don't help? Phil Waters You mean you can drive these? I thought it was just there to polish 😬 Link to comment Share on other sites More sharing options...
philwaters Posted October 7, 2002 Share Posted October 7, 2002 What happened to the self-adhesive pads - did they just get eaten through by the piston? I find the copperslip just gets pushed out the way very quickly and is then useless. I have got hold of some S/Steel sheet so if these pads don't fix it I am going to make up some anti-squeal plates to try... oh, and back to the top Phil Waters You mean you can drive these? I thought it was just there to polish 😬 Link to comment Share on other sites More sharing options...
charlie_pank Posted October 7, 2002 Share Posted October 7, 2002 I remember someone telling me that using a file to smooth off the first couple of mm of the "leading edge" (ie rearmost if your caliper's at the top) can stop it squeaking, but don't quote me on that. Kermit the frog Link to comment Share on other sites More sharing options...
tiddy1 Posted October 7, 2002 Author Share Posted October 7, 2002 HAving talked to rally designs where I bought the calipers they said that it is not the pad material but that mintex have started making al thier pads on the lose side, If i stop the pad rattle, i.e up an down it will stop the squeal. thier suggestions were to fashion some copper, s/steel shims that wrap round the pads.or putting a line of weld on the pad metal plate to make them a tighter fit. This has the bonus of stopping the rattling as well. also suggested putting a 1mm shamfer on the trailing edge of the pad I'll let you know what works Simon Link to comment Share on other sites More sharing options...
philwaters Posted October 8, 2002 Share Posted October 8, 2002 That might be it I guess, my pads are a loose'ish fit, but they are no worse than a friends AP set-up or JW's Alcons.... and theirs don't squeal... If you do the wrap around thing then you will effectively be making an anti-squeal plate across the back anyway. Welding would have to be done every pad change = pain. The DS3000 pads went in last night and a quick blat had no squealing. I don't think they are fully bedded in yet - so time will tell. Phil Waters You mean you can drive these? I thought it was just there to polish 😬 Link to comment Share on other sites More sharing options...
Rob Walker Posted October 8, 2002 Share Posted October 8, 2002 File a SMALL chamfer on all the leading edges of the friction material. Its normally the rears that have this problem though ? Link to comment Share on other sites More sharing options...
philwaters Posted October 8, 2002 Share Posted October 8, 2002 My rears are the Live drums so I can't imagine they have worn out - do they ever? I am intending on checking them - but the fact that they didn't squeal at all last night would tend to indicate that the change of pads at the front has had an effect - so kind of eliminates the rears being the problem.... Will check though Phil Waters You mean you can drive these? I thought it was just there to polish 😬 Link to comment Share on other sites More sharing options...
I.Mupferit Posted October 8, 2002 Share Posted October 8, 2002 Phil, What discs do you have, i.e. are they grooved/drilled? Brent Link to comment Share on other sites More sharing options...
philwaters Posted October 8, 2002 Share Posted October 8, 2002 Hi Brent, My discs are grooved (6 per side) but not drilled. I'm pretty convinced that it is pad/piston contact that is the problem... just need to find the time to knock up some plates and then try the G/stuff pads again to see if it cures... The Ferodo DS3000 pads from Steve have already put a couple of slight grooves in my disc after only 15mins on a slow blat to wear them in - his are like that all over - but I am not keen on that. I don't care for the G/stuff but will at least give them a good enough time to see if they improve before swapping to some Mintex 1155's. Phil Waters You mean you can drive these? I thought it was just there to polish 😬 Link to comment Share on other sites More sharing options...
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