turning the rotors?

[DMC-Ron]

I have some surface pitting on my rear rotors and was considering getting them resurfaced (turned). Has anyone done this? Any recommendations on where to go to have this done?

Thanks,
Ron

[burch]

I had my fronts done at the local parts store (O'Reilly, I believe). Think it was about 15 bucks per rotor.

[DMC-81]

Hi there,

Yes, I had my rear rotors done. I found an independent shop to do it for around the same price ($15). Just make sure they are not down to minimum thickness or warped. I also had them bead blasted so I could paint the hubs. Here's a couple pics:

Before:
51966

After:
51967

[DMCMW Dave]

New thickness is 0.500 inches. Don't cut them below 0.460 inches. Same front and rear.

It's sometimes hard to find someone to cut the fronts as some places don't have the correct adapters.

[Josh]

All the rotors on my car have been turned. Just make sure they stay above the minimum thickness and you are fine.

[cdrusn]

Pitting isn't going to hurt your brakes performance. Put a few miles on them and drag the brakes and the pads will do the clean up for you. Unless there is a lip around the edge then it's all ready flat. :race:

[DMC-Ron]

Hi there,

Yes, I had my rear rotors done. I found an independent shop to do it for around the same price ($15). Just make sure they are not down to minimum thickness or warped. I also had them bead blasted so I could paint the hubs. Here's a couple pics:

Before:
51966

After:
51967

Wow! Nice work!

[DMC-Ron]

New thickness is 0.500 inches. Don't cut them below 0.460 inches. Same front and rear.

It's sometimes hard to find someone to cut the fronts as some places don't have the correct adapters.

Thanks. I was wondering. I could not find the tolerances in the workshop manual.

And what about the 270 ft lbs for the rear hub nut. That seems like a lot? My torque wrench only goes to 150 (maybe it's just wimpy).

Ron

[sdg3205]

Torque the rear hub nuts to spec. Use a new nut on the drivers side, maybe even some thread lock. There have been cases of that nut coming off.

[DMC-Ron]

Thanks. I was wondering. I could not find the tolerances in the workshop manual.

And what about the 270 ft lbs for the rear hub nut. That seems like a lot? My torque wrench only goes to 150 (maybe it's just wimpy).

Ron

Found the tech spec ST-08-10/82 for the rotor resurfacing minimums.
Ron

[Josh]

Thanks. I was wondering. I could not find the tolerances in the workshop manual.

And what about the 270 ft lbs for the rear hub nut. That seems like a lot? My torque wrench only goes to 150 (maybe it's just wimpy).

Ron

Buy a new torque wrench... It is worth it. Also as Dave said use a new nut and make sure the cone insert is in good shape. I also now apply red loctite to the threads... up to you.

http://i84.photobucket.com/albums/k38/jschatte/Facebook/Project%2082%20Delorean/13450805_1309889872357856_8323433869267713965_n.jp g (http://s84.photobucket.com/user/jschatte/media/Facebook/Project%2082%20Delorean/13450805_1309889872357856_8323433869267713965_n.jp g.html)

[Andrew]

Thanks. I was wondering. I could not find the tolerances in the workshop manual.

And what about the 270 ft lbs for the rear hub nut. That seems like a lot? My torque wrench only goes to 150 (maybe it's just wimpy).

Ron

You don't need to remove the hub nut to remove the rear rotors as they are a floating design (with a retaining screw). All you need to remove is the caliper and the retaining screw to remove the rotor. The rotor may be rusted to the hub; thus, it may require a little persuasion to remove.

With the exception of the time I replaced the right rear hub assembly on 4194 back in 2001, I have never removed a rear hub nut on either of my DeLoreans.

[DMC-81]

You don't need to remove the hub nut to remove the rear rotors as they are a floating design (with a retaining screw). All you need to remove is the caliper and the retaining screw to remove the rotor. The rotor may be rusted to the hub; thus, it may require a little persuasion to remove.

With the exception of the time I replaced the right rear hub assembly on 4194 back in 2001, I have never removed a rear hub nut on either of my DeLoreans.

That's a good clarification. Also, the retaining screw may be behind a spacer. On my car, the spacer was glued on a bit so it needed some persuasion as well. Here are a couple more pics of the bare rotor and the hub with the retaining screw.

51968

51969


Wow! Nice work!

Thanks!

[DMC-Ron]

You don't need to remove the hub nut to remove the rear rotors as they are a floating design (with a retaining screw). All you need to remove is the caliper and the retaining screw to remove the rotor. The rotor may be rusted to the hub; thus, it may require a little persuasion to remove.

With the exception of the time I replaced the right rear hub assembly on 4194 back in 2001, I have never removed a rear hub nut on either of my DeLoreans.

Well that's a relief. I should have looked at the parts breakout more closely. Thanks for jumping in with the clarification.
Ron

[DMC-Ron]

Hi there,

Yes, I had my rear rotors done. I found an independent shop to do it for around the same price ($15). Just make sure they are not down to minimum thickness or warped. I also had them bead blasted so I could paint the hubs. Here's a couple pics:

Before:
51966

After:
51967

I also notice that you changed the spring. Were you lowering the rear suspension?
Ron