Change Brake Pads On Change Of Rotors?

[theponyremark]

Hi all,

My stock GTT rotors have been squealing like a pig being murdered (even after machining the god damn rotors), and changing to new Bendix Ultra Premium brake pads and driving it for 500KM.

I bit the bullet and bought and bought RDA 7957S Slotted Rotors. My question is, having new rotors, would it be safe to reuse my Bendix Ultra Premiums or would I need a new set?

[Joe_89]

Certainly wouldnt think it would be unsafe to re-use them, but maybe if you have new rotors just rub them over a bit of sandpaper on a flat surface so the faces are nice and fresh

[Kinks]

Yep I'd rough em up with sandpaper a bit especially if the old rotors were scored at all.

[Equinox]

You're meant to bed in new rotors with used pads.

Are you sure it's not the type of pad you are using? Have you tried any other pads? Are you using the anti-squeal shims?

[theponyremark]

Thanks for the advice Joe_89 and Kinks! I'll be doing this over the weekend and post the outcome

Equinox: The previous pads were doing the same. They were EBC Greens, the new ones should be bedded in by now, it's been 500KM. It's still squealing before and after machining rotors... I figured it were the rotors. I am not sure about anti-shims. The brake pads didn't come with anything else besides the brakes themselves. Where can I get shims from?

Edited October 21, 2010 by theponyremark

[theponyremark]

Okay, after doing further investigation, it seems the fronts are missing the shims. Must be from the previous owner! Where can I get front shims?

[Moodles2]

Nissan, but they are expensive. I'm not sure about the 34 sumitomo calipers, but R32/R33 sumitomo share the same shims as the 300zx. http://www.cazracing.com.au/catalog/produc...products_id=105

Just check Nissan FAST if possible to confirm the part numbers and see if they match up to: http://www.thenismoshop.com/catalog/300ZX-..._Clips_Z32.html

[theponyremark]

I'm not sure what Nissan FAST is, I presume it is a part number database.

[theponyremark]

Okay all. I gt the factory shims in and the still squeal. I was told by a mechanic that modern brakes squeal like that due to their anti asbestos compound. WTF? Anyway i got some anti-squeal goop on the pads facing the rotors. Will update you all on how it turns out later tonight.