mattfinch Posted October 13, 2016 Share Posted October 13, 2016 Evening all, Iv been having a little bit of brake squeal so bought some brake pad shims to stick on the back of the pad. I took the pads out and gave everything a good brushing to get dust out. I also used a metel brush and gave the front of the pad a quick scrub. (Dont know if that is a good thing to do or not) Put the shims on the back of the same pads i took out and put some copper grease on the back and put it all back together how it was. When I done this I pushed the caliper pistons back in the caliper with the fluid lid off. Got in the car and pumpped the pedal a few times and it was solid as a rock. Started her and went for a drive. When i apply the brake i have quite a bit of travel before the brakes seem to do anything. If i pump pedal after that brakes and solid and good. Again pull away go to brake and lots of travel again. Has something gone wrong some where or is it a case of these shims need to settle/bed in. Sorry for long read. Thanks Quote Link to comment Share on other sites More sharing options...
-G- Posted October 13, 2016 Share Posted October 13, 2016 Sounds like you need to bleed your brakes, pal. Quote Link to comment Share on other sites More sharing options...
-G- Posted October 13, 2016 Share Posted October 13, 2016 http://www.350z-uk.com/topic/50761-how-to-bleed-my-brakes/ Quote Link to comment Share on other sites More sharing options...
mattfinch Posted October 13, 2016 Author Share Posted October 13, 2016 Thanks for reply. I thought this but how would air have got in the system i only took the pads out and pushed the pistons back? Quote Link to comment Share on other sites More sharing options...
ryanlang Posted October 13, 2016 Share Posted October 13, 2016 (edited) could have disrupted the piston seal when pushing the pistons back in which will cause air to get into the system. take the calipers off again and make sure no fluid is leaking from the piston seals. this will give the same effect Edited October 13, 2016 by ryanlang Quote Link to comment Share on other sites More sharing options...
ZMANALEX Posted October 13, 2016 Share Posted October 13, 2016 Best to give the brakes a good bed in just in case you have got the pads mixed up Doubt if you have got air into the system, however a bleed and some fresh fluid will do no harm. Quote Link to comment Share on other sites More sharing options...
mattfinch Posted October 13, 2016 Author Share Posted October 13, 2016 Thanks all. Would by any chance getting some copper grease on the dics or inside of the pad cause this. Not saying I have but there is a chance when sliding the pads back in? Quote Link to comment Share on other sites More sharing options...
ZMANALEX Posted October 13, 2016 Share Posted October 13, 2016 Thanks all. Would by any chance getting some copper grease on the dics or inside of the pad cause this. Not saying I have but there is a chance when sliding the pads back in? Only if you applied the copper grease with a ladle. 1 Quote Link to comment Share on other sites More sharing options...
mattfinch Posted October 13, 2016 Author Share Posted October 13, 2016 Thanks all. Would by any chance getting some copper grease on the dics or inside of the pad cause this. Not saying I have but there is a chance when sliding the pads back in? Only if you applied the copper grease with a ladle. Dont have one of them in my tool collection. Might have to get one for next time haha Quote Link to comment Share on other sites More sharing options...
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