this rotor had an impact from a chipped apex seal.

will it still be usable if the apex groove is filed?

 

anyone? bueler?

 

I'm in the same boat as you, similar "chip". Some may say no, I don't see what's really the problem. I know in a pineapple racing video, the guy used a griding stone to gently go over the outside, and a file inside the groove. Granted he wasn't repairing a rotor like that, just cleaning. But I would like more opinions myself

 

I thinks this is the right time for you to upgrade your rotors and change it for an aftermarket ones like brembo more stopping power much safer.
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Take a used Apex seal and run it through the slot to see if it's mis-shapen it at all which would affect the the seal travel up and down. Should check the clearances as well with a seal in it.

If it doesn't catch the I would think it should be OK.

I'm just puting my NA motor back in my car right now after doing a full rebuild due to it spitting a seal in the front rotor - mine went right across the groove so that rotor is garbage now as is the housing.

2 used rotors (matched from another engine), an Atkins rebuild kit, 2 new rotor bearings, 2 brand new rotor housings, and I'm out a lot of money. ;o)

Should have it going again in a couple of days.

Grant