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914World.com _ 914World Garage _ To turn or not to turn

Posted by: BigDBass May 20 2006, 08:27 AM

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?

Posted by: lapuwali May 20 2006, 08:36 AM

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.

Posted by: BigDBass May 20 2006, 08:41 AM

Thanks. I'm working on replacing the front wheel bearings today and thought I should check out the rotors.

Posted by: mikez May 20 2006, 12:08 PM

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.

Posted by: Mueller May 20 2006, 01:22 PM

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.