gas in breather oil cup?

Posted by nspec on March 26, 2007 at 19:36:57 from (4.238.67.234):

I've got a '47 IA with smoky exhaust. Been thinking I'd replace valve guides, possibly valves as well. Runs like a champ. If you didn't see the smoke, wouldn't know there was anything going on.

Today I pulled the oil cup off the air breather assembly and noticed a gas smell. Now I know the gas gets sucked out of the carburator upstream of the breather assembly, so the gas is relatively close to the oil cup, but I don't really think the oil looked or felt terribly dilluted in the cup. However, I did distinctly smell gas in the oil cup.

Any thoughts on what may cause this? Would an exhaust valve not seating and remaining partially open allow for this (and also my smoke)?

Thanks in advance!

Replies:

• Re: gas in breather oil cup? JayWalt 05:59:15 03/27/07 (0)
• Re: gas in breather oil cup? Jim Broughton 20:11:42 03/26/07 (1)
  • Re: gas in breather oil cup? nspec 20:20:15 03/26/07 (0)
• Re: gas in breather oil cup? CNKS 19:43:50 03/26/07 (5)
  • Re: gas in breather oil cup? nspec 20:01:27 03/26/07 (4)
    • Re: gas in breather oil cup? Owen Aaland 20:07:56 03/26/07 (3)
      • Re: gas in breather oil cup? nspec 20:12:45 03/26/07 (2)
        • Yow! A. Bohemian 11:39:59 03/27/07 (1)
          • Re: Yow! A. Bohemian. 11:50:20 03/27/07 (0)

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