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Thread: Twenty Two heat valve?

  1. #1
    Join Date
    Jun 2010
    Location
    Los Gatos,CA
    Posts
    79

    Default Twenty Two heat valve?

    Could someone confirm that the heat valve on my Twenty Two is in the right position to run on gasoline. It's been this way since I've owned the tractor and probably for 50 years before that and I've never given it any thought before but now I'm kind of curious. Would it even make any difference in how the tractor runs if it was in the wrong position?




    Cat 22
    Serial# 2F237

  2. #2

    Default

    The owner's manual I have shows you have the valve bolted in the correct position for gasoline.

  3. #3
    Join Date
    Apr 2007
    Location
    Elkhorn, WI
    Posts
    3,826

    Default

    The way modern gasoline has alcohol in it and freezes the outside of a manifold (surely the inside also).
    It probably would not have made a performance difference even if that valve was the wrong way.
    All it does is divert the exhaust gases to flow around the intake manifold to help vaporize heavier fuels.

  4. #4
    Join Date
    Nov 2006
    Location
    Pittsford NY
    Posts
    4,611

    Default

    And, if you want a new manifold, I believe production in the U.K. is in the pipeline. I know my manifold is past condemnation
    Cheers,
    Neil.

  5. #5
    Join Date
    Jun 2010
    Location
    Los Gatos,CA
    Posts
    79

    Default

    Thanks for the replies guys, it's good to know for sure that it's in the right position even if it probably doesn't make much difference in performance.
    Cat 22
    Serial# 2F237

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