Just curious...and I know this has been discussed before but.

How many people just change out their pads without turning their rotors.

I remember a guy saying he never ever machiened his rotors and it worked fine for him?


My rear pads needs chaning and I can do them myself but do not have access to turn my rotors.

Thanks guys

 

I usually dont turn my rotors unless its nessecary..... As long as they are not too warped, and there are no grooves cut into them, then they are fine

 

Agreed.

It's not a bad idea though to take a fine grade of sandpaper and give a new surface to the friction areas of the rotors before installing your new pads. (Basically, scuff them a bit.)

(Make small circular motions with the sandpaper over the entire surface of the rotors - both sides, then install your new pads)

This will help your new pads "bed-in" to the rotor surface better, providing a more uniform mating of the two surfaces & better stopping performance.

 

Another good Idea...... Just inspect the rotors for anything obviously wrong, and you might want to take the time to measure the thickness as well...... Measure the thickness on each rotor in about 4 or 5 spots...... that will give you a good idea of how your rotors are doing as far as warpage....

 

what 'grit' sand paper you use?

 

Use anything above: "360" (CAMI - US standard scale)

That should get you the desired results.

(For the uninitiated, higher #'s = finer grit/smaller abrasive particles)

 

I've always used around 100 grit when sanding the rotors. Been doing this for 20 years on many cars and never has any problems.

 

Just providing a general guideline. YMMV.

As long as you're not using rocks, and you're hand-sanding, you really can't do much harm to a rotor.

100 grit, 300 grit. . .whatever floats your boat, really.

 

Thanks guys....good info.

Never thought of using sandpaper to sand the rotors before installing new pads.

Well, 20 years is a long time with no probs...that is what I will do then.