View Full Version : Changing front disc pads
crash
15th October 2013, 07:05 AM
I need to change the front disc pads on the Disco. Have had a look at the Rave Disc and looks like only two 15mm bolts need undoing - removing the bottom one and lifting the caliper up to get the pads out.
I had a quick look last night and the top bolt looks to be tight on space around the ABS cable - any tricks.
There are two bolts with torx like heads on them - what do these hold on?
ballbag
15th October 2013, 07:29 AM
2 bolts hold caliper to caliper mount, 12mm head from memory. Remove them and caliper can then be removed.
G clamp + old pad to push pistons back into caliper. Fit new pads into place on disc, not in caliper. Ensure retaining springs are properly in place when refitting caliper. Nothing needs to be forced.
Sounds like you've not replaced pads before, watch a couple of vids or get someone who knows what they're doing to supervise. Not difficult but not the sort of thing you want to get wrong.
crash
15th October 2013, 07:59 AM
Thanks for that.
I have changed the rear pads on the Disco and pads on different vehicles before. It is the first time doing the fronts on the Disco.
It was 9:00pm and I was tired when I had a look last night which explains my over complicating things.
twr7cx
15th October 2013, 08:09 AM
The torx/12 point hex bolts hold the calipers bracket (anchor bracket) to the hub. You only undo these for removing the actual disc rotors. A standard multihex socket fits on these, size 14 or 15mm I think.
Mundy
15th October 2013, 12:09 PM
A tip given me by a mechanic mate is to crack open the bleed screw as you push the pistons back in place. This is good for 2 reasons: first you get rid of the old brake fluid behind the piston which doesn't get replaced when you normally bleed the brakes; second it means you don't have to remove brake fluid from the reservoir to stop it overflowing when you push the pistons back.
BigJon
15th October 2013, 12:18 PM
A tip given me by a mechanic mate is to crack open the bleed screw as you push the pistons back in place. This is good for 2 reasons: first you get rid of the old brake fluid behind the piston which doesn't get replaced when you normally bleed the brakes; second it means you don't have to remove brake fluid from the reservoir to stop it overflowing when you push the pistons back.
Third it stops the dirty old fluid from going into the ABS system / master cylinder and damaging components.
crash
16th October 2013, 07:58 AM
All done. Interesting to note that the drivers side pads were worn alot more than the passenger side. The caliper slides were a bit sticky on both sides.
Next job is to change the brake fluid - does not look pretty.
ballbag
16th October 2013, 11:13 AM
Does it pull right under brakes?
crash
16th October 2013, 01:04 PM
Actually a little more to the left prior to the pad change. I made a mistake it was the drivers side not the passenger side that was worn more.
After changing the pads and hard braking from 60km it tracked straight.
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