rotor thickness for an L300

Discussion in 'Saturn L-series' started by David & Caroline, Dec 18, 2003.

  1. Anyone out there with the service manuals for the 2001 L300, or anyone else
    for that matter, what is the thickness spec for the front brake rotors on
    the 2001 L300 (I am looking to find out the initial thickness, and the
    minimum thickness at which it's safe to re-use (or turn down to)

    Thanks!
     
    David & Caroline, Dec 18, 2003
    #1
  2. Nominal new thickness 0.98 in, minimum thickness after refinish 0.90 in,
    discard thickness 0.87 in.
     
    Robert Hancock, Dec 18, 2003
    #2
  3. Thanks!!!

     
    David & Caroline, Dec 19, 2003
    #3
  4. David & Caroline

    BANDIT2941 Guest

    As an aside, when I first put brakes on my 95 SC2, I couldn't find a shop to
    turn the rotors for me, even though I had the specs in my hand and the
    micrometer showed they were within spec. Everywhere but one place said they
    were too thin. So you might have trouble finding someone to turn them. That was
    at 125k, I just did the breaks again at 200k and I put new rotors on it this
    time. The rotors were $20 a piece. Not sure what rotors will cost for your L
    series but if they're cheap you may find there isn't much of a price difference
    between getting the old ones turned and just buying new ones.
     
    BANDIT2941, Dec 19, 2003
    #4
  5. I've also been pampered in the past with cars that don't have expensive
    rotors - however, the ones for the wife's L series are $90 a crack (even the
    ones down at AutoZone are $88 each). I ended up just having the dealership
    do the brakes (how sad is that!) - no time with the holidays and
    everything - anyway, Saturn actually turned the rotors - overall, the rotors
    were fine - they had a little bit of a lip on the outside edge, but other
    than that were smooth and not out of round - looks like they just cleaned up
    the surface a little bit, and evened everything out. Anyway - haven't had a
    chance to put a mic on them to see how thick they machined them down to yet.
    In any event, Saturn includes resurfacing (if needed) in their "brake job"
    price - so it's all good!
     
    David & Caroline, Dec 19, 2003
    #5
  6. David & Caroline

    Dan Hicks Guest

    I had the opposite problem with my wife's SL1: Rotors were replaced
    at about 60K but were apparently bad from the factory. They quickly
    started pulsing, so returned to the shop and they turned them.
    About 15-20K later they were pulsing again. Different shop,
    insisted they were still within spec, so they turned them again.
    Then about 15-20K after that again the same thing. Finally, about
    15-20K after that a shop I've had good luck with turned them and it
    "took" -- they've not been pulsing since. I'm fairly confident they
    won't stand turning again, though.
     
    Dan Hicks, Dec 19, 2003
    #6
  7. David & Caroline

    Kirk Kohnen Guest

    Make sure when you put the wheels on, you use a torque wrench and torque the
    nuts correctly.

    Uneven torque will cause rotor warpage and pulsing of the brakes.

    Spec is, I believe, 103 ft-lbs on the SL series.
     
    Kirk Kohnen, Dec 20, 2003
    #7
  8. David & Caroline

    Dan Hicks Guest

    Well, the tires weren't touched for most of this time. The various
    shops put them on and they stayed on. Saturn may have rotated them
    during services, but only one flat that I can remember, and the
    tires lasted close to 100K.
     
    Dan Hicks, Dec 20, 2003
    #8
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