changing front rotors

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Jun 23, 2011 | 08:26 AM
  #1  
hi!
ill be changing the front rotors on evo x. and have a few questions:
1. do i need to bleed the lie if changing the front rotors only?
2. i just installed a new hawk hps on my stock rotors can i still used on the new rotors?
3. how tight or whats the torque on tightening the caliper bolts?

i search both evo x forum and evom and didnt fid answer.
thanks
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Jun 23, 2011 | 08:52 AM
  #2  
Quote: hi!
ill be changing the front rotors on evo x. and have a few questions:
1. do i need to bleed the lie if changing the front rotors only?
2. i just installed a new hawk hps on my stock rotors can i still used on the new rotors?
3. how tight or whats the torque on tightening the caliper bolts?

i search both evo x forum and evom and didnt fid answer.
thanks
1. No, you don't need to bleed the brake system. Just compress the pistons back into the caliper (carefully) before putting everything together.
2. Depends on how long you had them on and how grooved the rotors are. Even if the old rotors are smooth it will take some time (a few hundred miles) to bed-in the pads. Any deformities on the old rotors will be transferred to the new pads (over time) which means you should re-surface the pads before installation.
3. There is an FAQ on torque values around here somewhere. Checking the "common torque values" sheet posted here, it calls for 100 ft/lbs +/- 11 for the caliper bolts.

Hope that helps.
--

Just wanted to add that the torque value is for the front calipers ONLY. The rear caliper torque value is much lower (59 ft/lbs +/- 7). But of course we are talking about front calipers here. Just wanted to ensure no one tried to torque their rears down with the value posted for fronts. :-)
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Jun 23, 2011 | 10:53 AM
  #3  
For #2, if your rotors were bad and grooved or glazzed your pads, I think you can just get some heavy grit sandpaper and rough them up again.
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Jun 23, 2011 | 02:02 PM
  #4  
Torque for fronts are 100 +- 11 ft-lb, rears 59 +- 7 ft-lb


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Jun 23, 2011 | 08:23 PM
  #5  
thanks for all your reply it really help
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