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Rotor Install Questions 900 1994

posted by Bean on Sat Oct 25 10:26 CST 2003
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last visit: Mon Aug 30 03:53 CST 2010

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Installed new rotors on my '94 945T. Volvo brand...

I'm curious as to why the outter edge of the rotor has a machined "groove" out of it. The two rotors had different grooves cut out of them...can I assume they are for balancing?

Also, couldn't find the alignment marks on the rotors either. Found them on the hub. Will there be any ill effects in the case that they aren't aligned? The car stops well with no vibration or anything.

Thanks,
Bean
--
'80 242GT 91k, '94 945T 110k

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Rotor Install Questions 900 1994

posted by Turbine1 on Sat Oct 25 16:58 CST 2003
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last visit: Sat May 5 11:14 CST 2012

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You are correct. The machined "bite" on the outside diameter of the rotor is cut at the factory to balance the rotors. You do not have to worry about aligning a new rotor. It only fists in one position anyway (because the wheel aligning pin threads through the rorot into the hub.)
--
Current: '95 945, 95k miles; '90 BMW 325i, 90k miles. Former Volvos, gone but not forgotten '85 245, 250k miles; '91 744T, 150k miles

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