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Rotor Runout/New Rotors

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Old Jul 30, 2010 | 11:11 PM
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Default Rotor Runout/New Rotors
Quick question regarding Rotor Runout. My front right original rotor was at .009'' and my front left was at .005''. I put new rotors on with new pads but I'm wondering now that I removed the old original rotors, how do you use the dial indicator with the new rotors installed? I'm guessing you use a couple of lug nuts to seat the rotor to the spindle and then take a measurement? If my new rotors are out of spec as well then what do I do? Take them to a shop to be machined? I will get to the rears tomorrow or Sunday. New stock rotors are from VB&P.
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Old Jul 30, 2010 | 11:19 PM
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I installed thin washer shaped shims between the rotor and hub to correct the run-out.
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Old Jul 30, 2010 | 11:40 PM
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Originally Posted by '75
I installed thin washer shaped shims between the rotor and hub to correct the run-out.
Where did you get these shims?
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Old Jul 31, 2010 | 12:16 AM
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In the past I've gotten mine from Guldstrand, tho they aren't listed in the online catalog. A bit over the top, but this might be of interest...

http://www.brakealign.com/
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Old Jul 31, 2010 | 07:09 AM
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Originally Posted by TheSkunkWorks
In the past I've gotten mine from Guldstrand, tho they aren't listed in the online catalog. A bit over the top, but this might be of interest...

http://www.brakealign.com/
Very good video. Has anyone used this method?
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Old Jul 31, 2010 | 09:29 AM
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Good video, I used shim stock and cut out washer shaped shims with scissors.
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Old Jul 31, 2010 | 09:52 AM
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My left rear retractor spring for parking brake shoes is broke. Is there an easy way to remove the spring retainer to remove the parking brake shoes?
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Old Jul 31, 2010 | 01:54 PM
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Originally Posted by '75
Good video, I used shim stock and cut out washer shaped shims with scissors.
Where did you get the shim stock?
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Old Jul 31, 2010 | 02:00 PM
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I have heard spark plug indexing washers work well around the lugs.
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Old Jul 31, 2010 | 04:21 PM
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Originally Posted by Vette79C3
Where did you get the shim stock?
Your local Napa store should have some, it comes in several thicknesses.
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Old Jul 31, 2010 | 10:06 PM
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Originally Posted by '75
Your local Napa store should have some, it comes in several thicknesses.
Awesome, I'll try NAPA. I'm feeling very confident now shimming but still can't get the damn parking brake shoes off.
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Old Jul 31, 2010 | 10:22 PM
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Napa has rotor shims that cover the entire area. They are made from tapered shim stock. They have 3 diff sizes. .003 , .006 , .009
Their pretty proud of them.
http://www.napaonline.com/Search/Res...+50012+2012030
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Old Jul 31, 2010 | 10:23 PM
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The factory installed the park brake hardware before they installed the spindles. The Haynes manual has a procedure in it which is a PITA but does work.
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Old Aug 1, 2010 | 10:27 AM
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i wonder how long thse shim jobs last though.

Uncoated rotors rust at the interface to the hub/spindle and cause movement. Rust usually pushes.
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Old Aug 1, 2010 | 06:42 PM
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Finally got the parking brake shoes off. Right rear actuating lever rusted and binding. Left rear upper retractor spring broke. Time to order more parts. Is there an easy way to install the parking brake shoes. Removing them was tough. I can't imagine them being any easier going back on!
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Old Aug 1, 2010 | 08:34 PM
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I got shim stock from mcmaster.com alot cheaper than napa (although napa shims are easier)

used a dial gauge, its not easy but take your time and measure twice lol.
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Old Aug 1, 2010 | 08:43 PM
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Originally Posted by Vette79C3
Finally got the parking brake shoes off. Right rear actuating lever rusted and binding. Left rear upper retractor spring broke. Time to order more parts. Is there an easy way to install the parking brake shoes. Removing them was tough. I can't imagine them being any easier going back on!
If you don't have the Haynes Manual heres a how to,
http://www.corvettemagazine.com/tech...e-rebuild.html
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Old Aug 1, 2010 | 09:31 PM
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Read both:
http://www.corvettemagazine.com/tech...e-rebuild.html

http://www.rowleycorvette.com/corvette_repair.html

Forum guys have done the parking brake install, its not fun, but when you get it's over and it works, well have a beer or two.
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Old Aug 2, 2010 | 08:37 AM
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Originally Posted by mikep3
Read both:
http://www.corvettemagazine.com/tech...e-rebuild.html

http://www.rowleycorvette.com/corvette_repair.html

Forum guys have done the parking brake install, its not fun, but when you get it's over and it works, well have a beer or two.
These are great reads. Thank you! This should help.
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