Rotor apex corner damaged during shipping.. How DIY restore corner/apex seal recess
#1
Rotor apex corner damaged during shipping.. How DIY restore corner/apex seal recess
Well, I just received a used rotor by mail which was not packeged very well, and sure enough one corner received some kind of blow during shipping. It is slightly pushed on one side of the corner seal/apex seal recess. I have no choice but to repair it and I am exploring the best approach. I can easily tap out the affected area using a modified swaging tool but my queston is should heat the area first to soften the metal. I know cast iron is brittle and I think the rotors are made of this.
#2
Moderator
iTrader: (3)
for what it's worth, i think the rotors are steel. i think it really comes down to how badly bent it is. i'm not a metallurgist or anything, but i would imagine you'll create a "stressed" area with any repair where you have to bend the metal back to it's original form. for an engine that i "cared" about i might be hesitant if i had to do that with a rotor. for example, i bought a pair of 9.7s and i need to fix an apex slot, but a file should do it for me and i'm comfortable with that. something at the corner seal would probably bring out the bitch in me quick.
a photo may help your cause a little better. guys that have made similar repairs may be able to guide you to a reliable repair method if the damage is not too bad. wish i could help more.
a photo may help your cause a little better. guys that have made similar repairs may be able to guide you to a reliable repair method if the damage is not too bad. wish i could help more.
#5
Old [Sch|F]ool
I'd go for it but really, really, REALLY pay attention to dimensions. Sticking a corner or apex seal would suck.
If the rotors are iron, they are a very steel-like iron. They're easily weldable.
If the rotors are iron, they are a very steel-like iron. They're easily weldable.
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#8
Old [Sch|F]ool
Tough call. I have had bad luck on a couple occasions with heated things going "soft". But that is also a lot of metal movement in a small area so it might get cracks when you bend it back.
Do you have a microscope so you can take a peek at the outside of the bend to verify that there are no cracks? Even a handheld/loupe would be good.
If it were mine, I'd get it "close" and then finish cleaning up with a small file in the slot and a curved jeweler's file in the corner seal hole. Straightening it will probably put some marks in the surfaces.
Do you have a microscope so you can take a peek at the outside of the bend to verify that there are no cracks? Even a handheld/loupe would be good.
If it were mine, I'd get it "close" and then finish cleaning up with a small file in the slot and a curved jeweler's file in the corner seal hole. Straightening it will probably put some marks in the surfaces.
#12
F'n Newbie...
iTrader: (6)
Speed1 has rotors in stock that they can sell/ship to you. I picked up a replacement s4 na rotor from them for pretty cheap. I'd give them a buzz, at least then you'll know what your getting and it'll be packed up properly.
#14
Rotary Enthusiast
iTrader: (1)
Don't risk it. That corner is beyond repair. Not worth the $1000+ rebuild kit. Sorry, don't do it! in the car business, if you don't get a complaint, your doing a good job. In this case, you will regret it. You measure engine parts by .001" . Sorry to sound like a jerk