302 smoking

Discussion in 'General Maverick/Comet' started by randytatum, Jul 17, 2012.

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  1. randytatum

    randytatum Member

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    my dad had a mustang and it had a 302 in it the car got wrecked so he took the engine out of it 10-15 years ago so i put it in a comet i bought 2 weeks ago (well traded for) we got it in it and it ran good no smoking at all sunday i changed the oil now it smokes... its not overfilled, i used a good oil filter i dont know it doesnt smoke until the motor warms up did a compression test everything is fine, havent did a oil pressure yet so i dont know about that... somebody told me it might be the valve seals..any suggestions? i used castrol 10w40...
     
    randytatum, Jul 17, 2012
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  2. 71gold

    71gold Frank Cooper Supporting Member

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    be my guess...
     
    71gold, Jul 17, 2012
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  3. simple man

    simple man Member

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    Drive it for awhile and let the rings reseat. If that doesn't do it, I'd go with the valve seals too. :)
     
    simple man, Jul 17, 2012
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  4. randytatum

    randytatum Member

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    did the valve seals go bad from the motor just sitting all those years?
     
    randytatum, Jul 17, 2012
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  5. Jsarnold

    Jsarnold Senior Member

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    Long shots, but worth checking the easy stuff first -- if its auto, look for transmission fluid in the vacuum line coming from the modulator and if there's oil in the vacuum line from the PCV valve, try a new PCV valve.
     
    Jsarnold, Jul 17, 2012
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  6. rthomas771

    rthomas771 Member

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    You never said what color smoke. If the smoke is dark color then its fuel related...light color is oil burning
     
    rthomas771, Jul 17, 2012
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  7. darren

    darren Member

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    They do go hard with time. Chevys were real bad for it with the o ring style.
     
    darren, Jul 17, 2012
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  8. randytatum

    randytatum Member

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    i just checked it again and its white smoke
     
    randytatum, Jul 17, 2012
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  9. kboldin

    kboldin Alain De Cadenet Has My Job!

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    White smoke is usually head gasket, check the underside of the oil filler cap and look for the chocolate milkshake. (good place to start)
     
    kboldin, Jul 17, 2012
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  10. randytatum

    randytatum Member

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    doesnt blown head gasket equal milky oil?
     
    randytatum, Jul 17, 2012
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  11. rthomas771

    rthomas771 Member

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    Any water getting in the oil will get milky oil either by a head gasket or intake gasket or around water ports...or crack casting
     
    rthomas771, Jul 17, 2012
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  12. randytatum

    randytatum Member

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    well i checked the oil just as pretty as it was in the quart...im leaning towards the pcv or valve seals
     
    randytatum, Jul 17, 2012
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  13. Joe Dirt

    Joe Dirt BBF life

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    Valve seals get hard and dried out from setting i just went through this with my 6 popper
     
    Joe Dirt, Jul 17, 2012
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  14. randytatum

    randytatum Member

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    what was it doing? white smoke?
     
    randytatum, Jul 17, 2012
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  15. randytatum

    randytatum Member

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    it was sitting in a room in a tin shed covered up like i said over 10 years, but i runs likes there is no problem, i hate hate hate to see a motor smoke
     
    randytatum, Jul 17, 2012
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