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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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S60/V70 Front brake upgrade to 320mmViews : 3249 Replies : 1Users Viewing This Thread : |
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Mar 23rd, 2012, 18:16 | #1 |
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S60/V70 Front brake upgrade to 320mm
After suffering from major rear brake failure lastweek, I decided to do all the work myself.Being so §§§§ed off with car had totally forgot to call GRN motors to cancel the appointment for the front brakes.
I had the big calipers off Tim Williams £110 for calipers, carriers and sliders, all in very good condition. Other Parts needed: 320mm Brake discs, New police spec pads, Longer Volvo hoses, New bleed nipples, Fresh brake fluid (atleast 1ltr, I didnt buy enough) New longer caliper carrier bolts - very important. After removing old calipers and carriers and hoses, the entire hub area was cleaned down. When trying to fit new bolts I discovered the holes in hub and deflection limiter are too small for new bolts and larger carriers. A titanium step drill and blacksmiths drill was used to make the holes larger (15.5mm). The deflection limiters were a bit a headache, the material is a lot tougher, I had to use a machine shop and its lathe to make the holes larger (16mm). Once the holes were sorted out , the refitting process began. All parts fitted perfectly, then I realised the half a litre of brake fluid is not going to be enough as it took about 250ml to fill up one caliper Bled all 4 calipers just to be on safe side, clean up and road tested car and it really stops now.
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