clutch cover heat-induced cracking in non-retina macbook pros

Discussion in 'MacBook Pro' started by Jottle, Jul 17, 2012.

  1. Jottle macrumors 6502

    Oct 17, 2003
    I just posted this reply in another thread, but I'm curious if anyone has also encountered this issue after a few years of mbp ownership? On the current non-retina mbp and older 2008-11 mbp's, high exhaust fan heat generated by running the fans on high with the lid closed over many years can actually mess up the plastic clutch cover over time. I have a mid 2009 mbp that I use to play games in bootcamp in clamshell mode a lot of the time over the past 3 years. The result: right where the fans exhaust in the middle of the screen I started to get some cracking in the black plastic clutch cover. I've only ever seen this reported in one other place on the net:


    My clutch cover was replaced under applecare due to this cracking, but I know this was due to heat exhaust and not pressure. Those of us using the older style mbp in clamshell mode with the fans on high for hours on end every day would do well to run in clamshell mode but also lift up the laptop screen so that it's open a bit when playing games in bootcamp. This is pretty easy to do. You just have to remember to bootup in bootcamp with the screen closed, and then lift the lid afterwards. Less heat hits the plastic clutch cover if the screen is open slightly. I wouldn't call this a defect as plastic will do this if exposed to high temperatures over time. I just think the materials used for the clutch cover should be upgraded to prevent this in the future. Of course, I doubt most users are running their mbp's in clamshell mode all the time with the fans spinning on high for long sessions.
  2. Taylor-C macrumors 6502a

    Jul 12, 2011
    This has happened to mine, but not nearly as bad as the picture.
    Do you know where I could buy a replacement one as my 2011 MBP is out of warranty?
  3. Jottle thread starter macrumors 6502

    Oct 17, 2003
    Mine didn't look that bad either, but I did have three of those hairline cracks in the center of the clutch cover. The best prices are on ebay (you can find one for ~20 new occasionally). But they are available on sites like ifixit and powerbook medic.

    They're $9.99 used and $19.99 new at
  4. etweb macrumors newbie

    Jul 27, 2012

    my mid 2010 13" Macbook Pro has the same issue. For a long time I did not even know how to call the part and only trough scrolling through the battery replacement on fixit I came onto the "clutch cover" keyword.

    It si doing this for more than year now and I upgraded to apple care for the case of upcoming damage but I have had no time to get it fixed yet. It looks like doing it by yourself is a bigger operation requiring many of the steps needed for display replacement.

    I am surprised not more people experienced this..I might post some pics of mine later.


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