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S80 '98-'06 / S60 '00-'09 / V70 & XC70 '00-'07 General Forum for the P2-platform S60 / V70 / XC70 / S80 models |
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Scraping noise when spinning rear disc/wheelViews : 570 Replies : 7Users Viewing This Thread : |
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Jan 22nd, 2022, 21:16 | #1 | |||
VOC Member
Last Online: Yesterday 20:56
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Location: Oxfordshire
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Scraping noise when spinning rear disc/wheel
This seems like something basic which I can't reason through to my satisfaction.
I fitted new rear discs to lightly greased hub spigots, ensured they're flush, and installed the locating screw. When rotating the discs (or when rotating the finished assembly, wheels on, handbrake released, as shown below) there is a scraping sound for part of the motion, some of it is free though. This shows up in a few of the how-to videos but with no explanation. Nobody addresses it or tries to resolve it so I have to assume it's acceptable but I want to know if it's something that could/should be alleviated. And I didn't think to spin the wheels before starting so I've not got a comparison.
Is it the handbrake shoes dragging? I thought it was this, but backing off the nut didn't seem to change it; plus as you see in the video, with the handbrake released the wheel seems to keep rotating reasonably well once started by hand. Feels like I've successfully changed the brakes and not been able to convince myself of something basic. other cars https://youtu.be/1t62t5vY_bA?t=721 https://youtu.be/LJc9rzj4hAo?t=2517
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2005 S60 2.5T SE (Manual, Magic Blue) >170k miles. |
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Jan 22nd, 2022, 22:20 | #2 |
trying to be helpful
Last Online: Yesterday 23:43
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Location: Dagenham
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Isn't that just the pads in the caliper rubbing on the disc slightly, they always do that a bit, there's no way for them to spring back away from the disc
I suppose you could always take the caliper off and try again with it removed and see if the noise goes away but I wouldn't be worrying about it if it was me |
Jan 23rd, 2022, 01:32 | #3 |
Lunatic.
Last Online: Yesterday 23:36
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Location: staffordshire
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Take it for a drive, apply the brakes a few times but not too hard, there is an anti rust coating on the discs, this will wear off quickly and things will quieten down.
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V40 1.9D 2004 620 miles to the tankful. 235000 miles on clock. Now sold, S60 D5 2004. I vape therefore I am. |
Jan 23rd, 2022, 12:05 | #4 |
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I always get that sound when I've changed the disc brakes. It disappears after driving the car for a few days. The main thing is that the wheel is spinning quite freely.
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Jan 23rd, 2022, 17:39 | #5 | |
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Quote:
I was just curious what makes the noise as spinning the hub was silent but with the discs on it's like something's touching. All seems good though. That said I might be pulling the offside apart again as the centre of the disc gained a single score mark in the first 25 miles so I'm wondering if some dust/grit got trapped on the pad surface during installation.
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2005 S60 2.5T SE (Manual, Magic Blue) >170k miles. |
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Jan 24th, 2022, 20:20 | #6 |
Flaccid Member
Last Online: Apr 15th, 2024 16:09
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Location: Norwich
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totally normal - dont worry about it
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2001 Volvo S60 T5 SE 2.3 Geartronic (Scrapped) 2007 Volvo S60 T5 SE 2.4 Geartronic (Sold) 2008 Volvo V70 D5 SE Sport Geartronic (Current) |
Jan 24th, 2022, 20:22 | #7 |
Flaccid Member
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worst case make sure the piston is fully flush back in the caliper
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2001 Volvo S60 T5 SE 2.3 Geartronic (Scrapped) 2007 Volvo S60 T5 SE 2.4 Geartronic (Sold) 2008 Volvo V70 D5 SE Sport Geartronic (Current) |
Jan 24th, 2022, 20:58 | #8 |
Master Member
Last Online: Yesterday 21:20
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Location: Sandhurst
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Check that you haven't bent the back plate such that it's just touching the disk - easily done.
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