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Thread: Small smoke after idling in garage

  1. 10-24-2021, 04:28 AM #1
    acolle
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    Small smoke after idling in garage

    I have my 73 in the garage. With a 3.2 from a mid 80s donor. Interior is out. Getting seats rebuilt. I've been starting it every 3-4 weeks. Let the car idle for about 5 min. Last time I saw a small amount of smoke rising from the fan/shroud after I shut it down. Engine was hot from idling, but not registering anything noteworthy on the temp gauge. Is it odd for external smoke in a scenario like this?
    Last edited by acolle; 10-24-2021 at 06:17 AM.
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  2. 10-24-2021, 06:22 AM #2
    mac73s
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    I can't speak to the smoke without knowing more, but I'd strongly recommend against your regimen of starting, idling for 5 or so minutes and then shutting it off. All you are doing is creating moisture/water in the crankcase and it is not getting hot enough - or long enough - to remove it. Much better regimen is to leave it unstarted until you can drive the car for a minimum of 25 minutes or so at full operating temperature.
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  3. 10-24-2021, 06:41 AM #3
    Richy
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    Mac is spot on , what you are doing is worse than not starting at all . Condensation collects in the oil tank as well and creates rust .
    Last edited by Richy; 10-24-2021 at 05:47 PM. Reason: add text
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  4. 10-24-2021, 08:45 AM #4
    acolle
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    Quote Originally Posted by mac73s View Post
    I can't speak to the smoke without knowing more, but I'd strongly recommend against your regimen of starting, idling for 5 or so minutes and then shutting it off. All you are doing is creating moisture/water in the crankcase and it is not getting hot enough - or long enough - to remove it. Much better regimen is to leave it unstarted until you can drive the car for a minimum of 25 minutes or so at full operating temperature.
    Good to know. Thank you for the input!
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