ATE rotors - missing alignment screw holes
10-25-09, 12:00 PM
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ATE rotors - missing alignment screw holes
Got a full set of ATE rotors from Tire Rack a little while back and am finally getting around to installing the new rotors/pads.
Went to install the first front rotor and suddenly noticed that the front rotors I have do NOT have the two little alignment holes...only the stud holes!
Did I order the wrong rotors?? As far as I recall, I simply specified the car model and got the rotors they recommended. [EDIT] Checked the receipt and it DOES specify the correct year and make, so if I have the wrong ones, TR shipped the wrong ones.
PLEASSSSSEEEE advise.
...also found that one of those little screws that holds the rotor on has the head busted off. How big of a deal is this? Should I not even bother continuing w/o replacing the screw?
Went to install the first front rotor and suddenly noticed that the front rotors I have do NOT have the two little alignment holes...only the stud holes!
Did I order the wrong rotors?? As far as I recall, I simply specified the car model and got the rotors they recommended. [EDIT] Checked the receipt and it DOES specify the correct year and make, so if I have the wrong ones, TR shipped the wrong ones.
PLEASSSSSEEEE advise.
...also found that one of those little screws that holds the rotor on has the head busted off. How big of a deal is this? Should I not even bother continuing w/o replacing the screw?
Last edited by ck42; 10-25-09 at 01:35 PM.
10-25-09, 03:39 PM
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Thank you!
Next question I've run into now is in regards to the Akebono pads I bought.
The pads have a tapered end. Is the tapered end of the pad suppose to be in front (towards front of car) or on the rear side?
In the box, looking at all the pads, I would have the opportunity for installing them either way. I'm guessing that the taper is supposed to go on the back side...
[EDIT]
Looks like the original pads have some asymmetry to them that I simply matched with the new pads...and this ended up deciding for me which pads to use. Hmm...now that I think about it, I can't recall now which end the taper was. LOL
Next question I've run into now is in regards to the Akebono pads I bought.
The pads have a tapered end. Is the tapered end of the pad suppose to be in front (towards front of car) or on the rear side?
In the box, looking at all the pads, I would have the opportunity for installing them either way. I'm guessing that the taper is supposed to go on the back side...
[EDIT]
Looks like the original pads have some asymmetry to them that I simply matched with the new pads...and this ended up deciding for me which pads to use. Hmm...now that I think about it, I can't recall now which end the taper was. LOL
Last edited by ck42; 10-25-09 at 04:54 PM. Reason: new info
10-26-09, 11:46 AM
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10-26-09, 03:02 PM
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Thanks for the confirmation.
Went ahead and finished up all four wheels today.
I really just wanted to make sure that those screws were not necessary in some way since I've never had a car that had screws holding the rotor in like that.
First time doing brakes on this car. Went pretty well overall. As usual, the most difficult part of the process was getting the caliper bolts loose....that's always the case though.
Installed Speedbleeders while I was at it and did a brake fluid flush. First time using the Speedbleeders and have to say, they worked exactly as hoped. Was able to bleed the system by myself no problem.
Went ahead and finished up all four wheels today.
I really just wanted to make sure that those screws were not necessary in some way since I've never had a car that had screws holding the rotor in like that.
First time doing brakes on this car. Went pretty well overall. As usual, the most difficult part of the process was getting the caliper bolts loose....that's always the case though.
Installed Speedbleeders while I was at it and did a brake fluid flush. First time using the Speedbleeders and have to say, they worked exactly as hoped. Was able to bleed the system by myself no problem.
10-26-09, 06:47 PM
#6
Tapers on brake pads go to the leading edge, the edge that gets hit by the disk first as it rotates.
The locator screws are nice to have, they were supplied for a reason. They can be a PIA to remove if people forget to apply a little anti-seize to the threads at the first disk replacement, but once you have done so, they are no problem. They help maintain concentricity of the disk on the hub. How will you ever be able to check for run-out if the disk gets all wobbly every time you take off a wheel?
Colin
The locator screws are nice to have, they were supplied for a reason. They can be a PIA to remove if people forget to apply a little anti-seize to the threads at the first disk replacement, but once you have done so, they are no problem. They help maintain concentricity of the disk on the hub. How will you ever be able to check for run-out if the disk gets all wobbly every time you take off a wheel?
Colin
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