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S40 / V40 '96-'04 General Forum for the Volvo S40 and V40 (Classic) Series from 1995-2004. |
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V40 rear pads wear indicator + other stuff!Views : 720 Replies : 8Users Viewing This Thread : |
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Apr 28th, 2016, 18:16 | #1 |
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V40 rear pads wear indicator + other stuff!
Hello folks, yet again I found myself turning to the forums to check something but happy to report something back that might be of help to someone else
One of the rear pads (passenger side) had made its way down to the backing plates as I was driving to London the other day - needless to say the graunching sound wasn't pleasant so maximum engine braking was used to good effect. I have had new pads for some time now and thought the discs were good too (until this incident) thinking that I needed the wind back tool before I could do it - I ordered one anyway and then stripped down the offending side before it arrived - as a test I was able to wind the piston in (CLOCKWISE which I wasn't able to determine anywhere) using a pair of mole grips and an F-clamp so tool not needed! The best thing to do is to open up the bleed nipple - this also gets rid of all the manky brake fluid that gets stuck behind the piston even if the fluid has been flushed through (I discovered this on the fronts!). Use the F-clamp (or G) to squeeze the piston and then turn it with the molegrips, every half turn or so tighten up the clamp. I did the same on the driver's side so as and when the tool arrives I might just send it back although it was only 7 quid on Amazon (labelled as a right-handed version) Second thing - the new pads come with 4 clips and two bolts - turns out the clips are the wear indicators (not fitted on the old hence the wear down to backing plates) and nowhere could I find how to orient these other than the description here (http://www.volvoforums.org.uk/showthread.php?t=89129) but as the outer pad is visible and the caliper would foul the clips, I figured both can go on the inner in case of uneven wear - makes sense in the photo below (driver's side inner). No idea why only 2 bolts are supplied for an axle set when there are 4 in total holding the caliper on - I re-used the old ones :s IMG_5627.jpg Here's an interesting pic of the mess the disc/pad backing plate made as all the iron filings got stuck to the ABS sensor (I changed both discs anyway as they were past being re-used!) IMG_5628.jpg A question - there is a tie rod that connects into the arch area (I didn't take a pic in the excitement of reassembly) and the bush which looks like a bow tie is past its best on both sides (mentioned during the MOT) - what are these called and are they easy to replace (am thinking seized bolts + tight tolerance on the bush)? Thanks! |
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Apr 28th, 2016, 20:14 | #2 |
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Useful post Only two bolts are supplied per axle set as the supplier assumes you will undo one bolt and swing the calliper up and fit the new pads, swing the calliper down into position and fit new bolt. Talk about making a simple job difficult for the sake of a 5p bolt.
The tie rods are easy enough to replace if the bolts come undone, if not, they are a real bitch to do. From memory I don't think the long upper rod is adjustable, but the lower short one is and the inner adjustable bolt can seize. If it is the lower rod being replaced the suspension geometry needs checking afterwards. |
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Apr 29th, 2016, 09:08 | #3 | ||
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Apr 29th, 2016, 10:12 | #4 | |
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Apr 29th, 2016, 13:17 | #5 |
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Volvo calls these tie-rods control links. They are easy enough to get out but be careful not to over torque the two screws that bolt directly into the inner side of the sway arm. If you mess up the threading you will have to cut open the sway arm from the other side and manually put a nut in. Be sure to use a wire brush on the camber bolts and make a notch to mark the alignment (I used a dremel). You should be able to put the new bolt in pretty close to the original.
Brace yourself if you need to replace any of the camber bolts...they must be made of gold or something. If your are going to use an air gun on the camber bolts don't be an idiot like me - make sure you work on getting the nut off, not the bolt as the bolt is fixed in with the asymmetric washer.
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Apr 29th, 2016, 13:53 | #6 | |
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