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Thread: How much smoke is too much?

  1. #1
    Registered Member
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    Dec 2023

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    How much smoke is too much?

    Yesterday, I went to look at a 57 210 with the 283 and four barrel. There was smoke coming from the breather tube under the engine, which I understand can mean worn rings. But how much smoke is too much?

  2. #2
    Registered Member BamaNomad's Avatar
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    Nov 2016

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    Rocket City, USA (Huntsville, AL area)
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    It's all in the eyes (and nose?) of the beholder... ?

  3. #3
    Registered Member chevynut's Avatar
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    Nov 2011

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    Fort Collins, CO
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    Smoke from the crankcase is caused by blowby......combustion products blowing past the rings. Check the compression in each cylinder and if it's good I wouldn't worry too much about it. You could always add a PCV valve if it bothers you.
    56 Nomad, Ramjet 502, Viper 6-speed T56, C4 Corvette front and rear suspension


    Other vehicles:

    56 Chevy 2-door BelAir sedan
    56 Chevy 210 4-door sedan
    57 Chevy 210 4-door sedan
    1962 327/340HP Corvette
    1961 Willys CJ3B Jeep
    2001 Porsche Boxster S
    2003 Chevy Silverado 2500 HD Duramax
    2019 GMC Sierra Denali Duramax

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