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F134 will not run

Discussion in 'Early CJ5 and CJ6 Tech' started by 1967 CJ5A, Oct 27, 2012.

  1. Nov 2, 2012
    1967 CJ5A

    1967 CJ5A Mike 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Raleigh, NC
    Joined:
    May 12, 2012
    Messages:
    727
    Yes, but it still smokes blue. Its going to be overhauled soon.
     
  2. Nov 3, 2012
    johnny and sandy

    johnny and sandy Member

    San...
    Joined:
    Nov 9, 2008
    Messages:
    191
    Howdy 1967 CJ5A
    Here you go the Info. for the Carb.
    Go to YF Carburetor tips on the CJ-3B home page:
    [h=2]Repair Kits[/h]
    Generic repair kits can be a problem. As the CJ-3B has one of the smallest engines to use the YF (the YF was used on the Ford 300 CID 6-cylinder,) some kits which may be offered may not have correct gaskets, and especially the correct fuel valve. The fuel valve used for the 938 series carburetors was part number 25-190S with an orifice of 0.076 inch. The more common YF (used on Chevrolet and Ford) used orifices from 0.093 to 0.101 inch. Do the math with the equation for area on these and you can understand why many experience flooding problems. The YF as used on the Jeep will take 5-1/2 pounds pressure if the proper fuel valve is used. Many repair kits of today have too large an orifice. The larger orifice requires more buoyancy from the float (at idle), resulting in flooding and the need for a fuel pressure regulator.
    Also, the correct fuel valve for the 938 series was spring-loaded. This fuel valve was developed by Carter for use on 'rough service' carburetors (off-road and marine). Its function was to smooth the jolting of the float, maintaining a more constant fuel level in the bowl, and minimizing damage to the float. If the Jeep is used only on the streets and highways, the replacement solid valve will suffice; however off-road Jeeps should use the spring-loaded fuel valve. At The Carburetor Shop we make a superior repair kit which does contain the spring-loaded fuel valve (for carburetors where it was specified by Carter), as well as many other parts not in the parts store kits. We also make kits for the W-O, and YS Jeep carburetors. Check out our website. Should other carburetor questions arise (1974 and earlier only), please telephone and we will try to answer them." Also I think that Walks have them?
     
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