Dexter Posted October 14, 2014 Share Posted October 14, 2014 What's the function of brake pad shims? I replaced my rear pads about a month ago, and there were no shims, previously they had been replaced at a shop. I fitted new pads which came with shims, but i left them out since it was really hard to get them fit with the shims. What difference do they make? Second thing i've been thinking about is what kind of chemical you should use with the pads. I've learnt to put copper paste on the outsides of the pads and leave the shins out. Haynes manual recommends using "anti squeal compound" on the outsides of the pad also, but to use shims. The official workshop manual tells to use Molykote M77 (whatever that is) on both sides of the shims. So what do you think, what's the best way to do this? Quote Link to comment Share on other sites More sharing options...
Krzys Posted October 14, 2014 Share Posted October 14, 2014 I think the shims are supposed to stop the pads moving around in the carrier, some of mine were missing pieces but have been fine. I used this to grease up my pads http://www.opieoils.co.uk/p-77275-castrol-red-rubber-grease-for-hydraulic-brake-and-clutch-components.aspx Seems to have done the job! Quote Link to comment Share on other sites More sharing options...
WilkesyMB6 Posted October 14, 2014 Share Posted October 14, 2014 When we changed my on my EP we couldn't get them in as they were too tight so left them out. Quote Link to comment Share on other sites More sharing options...
Grant Posted October 14, 2014 Share Posted October 14, 2014 Shims aren't necessary if they are a snug fit in the carrier mate. I've always used cooper grease and never had an issue. And I've done a lot of pad changes lol Quote Link to comment Share on other sites More sharing options...
beastgtir Posted October 14, 2014 Share Posted October 14, 2014 They stop vibrations and squeals buddy. Most aftermarket pads come with anti squeal backing on them already. Stops the pads moving about too as many manufacturers use the same pads for different models and they aren't always a snug fit! Quote Link to comment Share on other sites More sharing options...
beastgtir Posted October 14, 2014 Share Posted October 14, 2014 And you can use anything like copper grease etc to stop the brakes squealing. Just make sure you put it on the back of the pads not the faces.. Quote Link to comment Share on other sites More sharing options...
Dexter Posted October 15, 2014 Author Share Posted October 15, 2014 Ok good to know, thanks for the quick replys . 1 Quote Link to comment Share on other sites More sharing options...
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