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Thread: Flywheels

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    Junior Member RooKi's Avatar
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    Default Flywheel


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    So I'm replacing the clutch on a smallport 4age and was just wondering if I can install a bigport 200mm flywheel and clutch.
    Thanks!
    Last edited by RooKi; 25th October 2017 at 09:05 PM.

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    The crank bolt pattern is the same, but note that the RWD and FWD flywheels are different for the 4AGE.
    Last edited by davew7; 25th October 2017 at 10:45 PM.

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    Also note that if you're installing a fwd 4age into a rwd you'll need the spigot bearing to ensure you don't bend the main shaft in your gearbox.

    Sent from my SM-G935F using Tapatalk

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    Junior Member RooKi's Avatar
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    Ahhh I see.
    Any way to differentiate a RWD and FWD flywheel?

    Thanks guys

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    Senior Member Hen may possibly be a nut's Avatar
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    "RWD" is 200mm across the clutch friction surface.
    "FWD" is 212mm.

    I use the inverted commas as early FWD bigports had the 200mm "RWD" flywheel too.

    Both flywheels are interchangeable. But as mentioned, you need to match the clutch to the size of flywheel. And yes, remember to use a spigot bearing if using in RWD format.

    And this info is all over the internet, so a quick search should have unearthed it.

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