1972 340: engine oil smells like gas

Discussion in 'Small Block Mopar Engine' started by reno340, Apr 29, 2012.

  1. reno340

    reno340 I Am The Big Dog

    Likes Received:
    Dec 30, 2005
    View My Photos
    Local Time:
    5:59 PM
    So, here is a problem that has been bugging me. My Duster's oil smells like gas. It has been happening over the years and gets to the point that the oil needs changed. I remember a few years ago, I changed the fuel pump to see if it helped but it didn't. The car only gets started and run as I don't have it on the road yet. I rebuilt the Edelbrock carb a little bit ago as the accelerator pump on it went bad. I had just changed the oil and after running the car once, the oil smelled like gas again. Does anyone know what is going on?

  2. None2Slow

    None2Slow Well-Known Member

    Likes Received:
    Jul 14, 2007
    Local Time:
    4:59 PM
    Sounds like its not getting up to temp and not being able to evaporate the gas vapors. That, or your dumping fuel past the rings. I once read that if a car is going to sit, its best to change the oil and let it sit, than to keep starting it and only letting it run a few minutes. It contaminates the oil and doesn't get up to temp to burn off the vapors of fuel and moisture that accumulates.