Dual Mass to Single Mass Upgrade eta

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  • r0meyrome
    Wrencher
    • Jul 2009
    • 218

    #1

    Dual Mass to Single Mass Upgrade eta

    Ive tried to search around for this upgrade since my dual mass is beat up! I got an 87 e30 bmw 325 with a dual mass (taken everything apart and found that the flywheel is burnt and possibly no one will cut it) So Im thinking a single mass flywheel would be the way to go! All ive gotten from the search bar is:

    Early Flywheel/Clutch Kit.

    Can someone shed more light to this?
  • Doughnut
    E30 Modder
    • Oct 2007
    • 869

    #2
    Off to the junk yard for you!
    Just get any earlier m20b25 flywheel and buy a clutchkit to suit.

    Edit, Didn't think the '87 had a "duel mass" flywheel.
    ///Monstrosity. (OO≡≡[][]≡≡OO)

    Aside from showing yourself to be offensive, lacking experience and ignorant in the ways of business, you're also illiterate and imprudent. Beyond that, your sense of liability is severely impaired.

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    • r0meyrome
      Wrencher
      • Jul 2009
      • 218

      #3
      Sorry my e30 might be 86 but its for sure a dual mass I got it in the trunk on my second car

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      • lateracer
        Grease Monkey
        • Sep 2009
        • 302

        #4
        Early/Late clutch kits usually refer to the production date of the car. Pre 06/86 have single mass, post have dual mass and use different clutches (unsprung disc)...you've already figured this one out though.

        Important Consideration: Does your flywheel have the position reference sender pressed into it? It's a small square metal peg along the side of the wheel that sticks up about half an inch. If your car has that setup, then it's a bit of a wrench for your dual to single conversion plans (killed mine for my 87 e) as that system is necessary for the motor to run.

        I'm not sure, but I don't think they made single mass flywheels with the position senders in them. Most single mass motors had the position referencing stuff up front...which is a better design anyway.
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