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Thread: Narrowing down a fault

  
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    james_donoghue's Avatar
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    Narrowing down a fault

    After being stood up for 4 months (but getting started every week or so) The C20LET starting the old blue smoke trick, now i know this is more than likely the turbo or stem seals, but would being static for that long and not running too often cause any premature wear?

    Just trying to narrow down the problem before everythig gets ripped apart or maybe sold . If it makes any olds the both parts were replaced 12k miles ago.

    Damn im not looking forward to the bill for this.

    Cheers guys

    Love a very sad Jim
    Mk 3 GSI - C20LET gone.... In with the VW Bora'ing

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    MikeWarner's Avatar
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    Hmmm. sitting for ages and letting the oil drain out of the turbo, starting it with no oil in there and running it cold, then doing the same every week for a few months.... can't be good for the turbo bearings and seals (or the rest of the engine for that case).
    8 Astras in a row! Can Anyone Beat That?
    Star Silver Astra Sporthatch SRi XP 1.9 CDTi (150PS)
    A Vauxhall site about Vauxhalls.

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    yeah, hinesight (?) is a great thing. Talking with the garage, thinking i might try the stem seals first, as they considered them more likely to become brittle. Is this a good assessment?
    Mk 3 GSI - C20LET gone.... In with the VW Bora'ing

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    When does it smoke? Vavle stem seals would usually be fine on idle, especially as it has only just started doing it. They would usually smoke on lift off when crank case pressure is higher. Turbos tend to smoke on idle.

    Have you started driving the car again? Maybe it just needs a good blat? Or an oil change with a thick oil - say 15-40 (i'm using 15-50).
    8 Astras in a row! Can Anyone Beat That?
    Star Silver Astra Sporthatch SRi XP 1.9 CDTi (150PS)
    A Vauxhall site about Vauxhalls.

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    Its had a few hundred miles of doing it, as it started when i was away from home. Smokes on Idle, usually after warming up. Just had it serviced to rule any simple faults out, but just as bad as before.

    Thanks for your help, logic and mechanical reasoning comes to the rescue Im praying to the automotive god that the bore hasnt worn.

    Many thanks Jim
    Mk 3 GSI - C20LET gone.... In with the VW Bora'ing

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