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Thread: ZEE Falure ? - CAN Bus Errors - Yellow ESP Light ON, revs cut, clutch disengaged

  1. #21
    Join Date
    Mar 2010
    Location
    Hampshire
    Posts
    1,964
    Quote Originally Posted by Arkon99 View Post

    Well, so, after much expense and deep thought, guess what ? - "137699" - you get the cookie. Correct. Nothing whatsoever to do with the anti-skid, nothing to do with the CANBUS errors, all the sensors including rear-wheel sensors were fine, not ABS, not lateral sensor, not brake pedal switch.
    Yum thank you. Can you make it a white chocolate and macademia cookie please? My favourite!
    ==============================
    2004 Roadster-Coupe SB2 Brabus
    2005 ForTwo Brabus Numeric
    2014 Skoda Yeti 4x4 DSG
    ex 2002 City Coupe 600cc Pulse
    ex 2003 City Coupe 700cc Passion
    ==============================

  2. #22
    Join Date
    Jan 2015
    Location
    Devon
    Posts
    35
    Quote Originally Posted by pinger View Post
    There's more to Roadster engines lasting longer than just oil cooler. Totally different gearing and consequently different thrust loadings on the pistons during operation is at least part of it.

    The Roadster has slightly shorter gearing but then the engine is pushing a heavier car so thrust loading on the pistons won't be much different and I why would that contribute to ring sticking anyway? The roadster uses the same oil control rings, so they can't be particularly crap. Do you know if the engine in the 61bhp Roadster is as long lived as the 82bhp and 101bhp versions, since that is basically a 450 engine and gearbox?

  3. #23
    Join Date
    Apr 2009
    Location
    Ecosse
    Posts
    3,425
    Quote Originally Posted by mikerj View Post
    The Roadster has slightly shorter gearing but then the engine is pushing a heavier car so thrust loading on the pistons won't be much different
    Higher rpm creates a balancing centrifugal force opposing piston thrust.

    Quote Originally Posted by mikerj View Post
    and I why would that contribute to ring sticking anyway?
    More friction, more heat, greater tendency for oil to carbonise.

    Quote Originally Posted by mikerj View Post
    The roadster uses the same oil control rings, so they can't be particularly crap.
    Still the weakest link in that engine?

    Quote Originally Posted by mikerj View Post
    Do you know if the engine in the 61bhp Roadster is as long lived as the 82bhp and 101bhp versions, since that is basically a 450 engine and gearbox?
    No idea. So few sold and very little feedback.

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