How much smoke is too much?

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  • EL_Pee
    Registered Member
    • Dec 2023
    • 5

    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?
  • BamaNomad
    Registered Member
    • Nov 2016
    • 3877

    #2
    It's all in the eyes (and nose?) of the beholder... ?

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    • chevynut
      Registered Member
      • Nov 2011
      • 11002

      #3
      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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