 To turn or not to turn, how to tell if front rotors should be turned |
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| BigDBass |
 May 20 2006, 08:27 AM
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#1
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Dumb Question Champion  Group: Members Posts: 1,438 Joined: 11-January 06 From: Chicago (south 'burbs) Member No.: 5,405 Region Association: Upper MidWest  |
When feeling the surface of my rotors, I can feel a little bit of groove, but it's pretty subtle. Should the rotor feel perfectly smooth or is some surface variation expected/acceptable? |
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| lapuwali |
May 20 2006, 08:36 AM
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#2
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Not another one! Group: Benefactors Posts: 4,526 Joined: 1-March 04 From: San Mateo, CA Member No.: 1,743  |
There's usually plenty of variation on any used rotor. When the decision comes down to turning or replacing, however, replace. They're pretty cheap to buy, probably cheaper than you'd be charged to turn them. You do have to include the price of new front wheel bearings, however, since the rotor IS the bearing carrier.
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| BigDBass |
May 20 2006, 08:41 AM
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#3
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Dumb Question Champion Group: Members Posts: 1,438 Joined: 11-January 06 From: Chicago (south 'burbs) Member No.: 5,405 Region Association: Upper MidWest |
Thanks. I'm working on replacing the front wheel bearings today and thought I should check out the rotors.
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| Joe Bob |
May 20 2006, 12:08 PM
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#4
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Retired admin, banned a few times Group: Members Posts: 17,427 Joined: 24-December 02 From: Boulder CO Member No.: 5 Region Association: None |
The cost of turning is just a LITTLE less than new ones.
Rotors are fine with a few grooves. As long as it doesn't look like Keith Richard's face or like the pads went to metal...yer prolly fine. |
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| Mueller |
May 20 2006, 01:22 PM
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#5
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None 
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depending on how thin they are, you might not have the option of turning...most shops will not turn a rotor once it's reached it's min. thickness
as copied from Pelican... QUOTE the front brake rotors on the 914 should be replaced when they wear past 9.5mm. The rear rotors should be replaced when they wear past 8.5mm. For the 914-6, these wear limits are 18.0mm and 8.5mm. |
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