1971 Skylark Rotor/Hub combo question

Discussion in 'The whoa and the sway.' started by eagleguy, Oct 2, 2015.

  1. eagleguy

    eagleguy 1971 Skylark Custom

    Is it necessary to remove the rear bearings when getting front rotors cut on a 71 Skylark. I know the front comes out but the rear requires removal of the seal. Bearings are OK.
     
  2. CJay

    CJay Supercar owner Staff Member

    Yes, rear bearings need to come out. Here's a quick tip to get them out easily.

    The way I do it is I naturally remove the castle nut, washer and front bearing. Then before I pull the rotor off, I reinstall the castle nut back on the spindle a few threads. Then yank the rotor off making sure the castle nut hooks the rear bearing. When you remove the rotor, the rear bearing and seal will be hanging on the spindle with no damage to the seal. I make it a habit of replacing the seal everytime I service the rotors
     
  3. eagleguy

    eagleguy 1971 Skylark Custom

    Thanks!

    Still on the fence about swapping to ceramic pads but the rotors need to be cut as my pedal is pulsating.
     
  4. CJay

    CJay Supercar owner Staff Member

    The "machine to" spec is .980 on those rotors. That's the minimum thickness they can be machined down to. If they're close to that, there may not be enough material left to machine the warp out of them. They may have also warped because they were machined too thin last go around.

    I suspect that you might be in for a new set of rotors after your visit to the machine shop
     
  5. eagleguy

    eagleguy 1971 Skylark Custom

    What are the signs that bearings and/or racers needing replacement. Is there supposed to be any play in the bearings?
     
  6. GotTattooz

    GotTattooz Well-Known Member

    If the bearings are discolored like they've been overheated, or if they're pitted, replace them. Bearings are very inexpensive to replace.

    -Josh
     
  7. CJay

    CJay Supercar owner Staff Member

    Play? In the bearing itself? Yes, the cage that holds the rollers in place will be loose. That's normal. The service manual outlines the correct procedure to re-tighten the castle nut. Loose is better than tight.

    As long as there is no galling, pitting or signs of overheating on either the bearing or the race that's installed in the hub, your GTG
     
  8. eagleguy

    eagleguy 1971 Skylark Custom

    The bearings themselves have play when I hold the center stable and rocked it to side. Not a lot but I forget how they were when new back 10K. No burn marks, chips etc. Need to see if the rotors can be cut and had to remove anything so I thought I would ask.
     
  9. eagleguy

    eagleguy 1971 Skylark Custom

    Does anyone know which is the proper Lucas grease for disc brake wheel bearings? Lucas Red & Tacky or X-Tra Heavy Duty?
     

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