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Thread: 4-134 firing order and distributor rotation - 1964 cj5

  1. #1
    Join Date
    Jan 2007
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    Glens Falls, NY
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    231

    Default 4-134 firing order and distributor rotation - 1964 cj5

    As the title says, this is a question on the 1964 4-134 F head firing order and distributor rotation.

    I have the manual and have searched the forum and Google. Here is the confusion:
    www.autozone.com/az/cds/en_us/0900823d/80/1d/6a/1d/0900823d801d6a1d/repairInfoPages.htm

    In the diagram from the link above, Figure 1 says rotation is counter clock wise, figures 6 and 7 say clock wise. This is the same information I am getting out of my 2 manuals. There are no specifics as to year of these 4-134 diagrams, did it change over time?

    I am guessing the reader is supposed to judge based on the location of the distributor in figures 1, 6 and 7 in relationship to the block, which 134 they have, or am I wrong? If I am correct, then I most likely have Figure 1

    A little help for the detail challenged

  2. #2
    Join Date
    Jun 2004
    Location
    New Haven, Vermont
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    1,019

    Default Re: 4-134 firing order and distributor rotation - 1964 cj5

    From the CJ3B page:Specifications

    Hurricane Engine

    Spark plug gap: 0.030 in. (0.762 mm)
    Spark plug torque: 25-33 lbs. ft. (34-44 Nm)
    Firing order: 1-3-4-2
    Distributor rotation: Counterclockwise
    Point gap: 0.020 in. (Prestolite)
    Dwell angle: 42 degrees
    Ignition timing: 5 degrees BTDC

    Bore and stroke :3 1/8 in. x 4 3/8 in. (79.37 mm x 111.12 mm)
    SAE Horsepower: 15.63
    Weight: 470 lbs. with fluids (Jeep Bible, Granville King)
    Max. Horsepower: 72 @ 4000 R.P.M. (71 @ 4000 R.P.M. on military M606's)
    Torque: 114 lbs. ft. (15.7 kg-m) @ 2000 R.P.M. (111 lbs. ft. @ 2200 R.P.M. on military M606's)
    Compression pressure: 120-130 psi (8.4-9.2 kg-cm2)
    Compression ratio: 6.9:1 (7.4:1 high altitude option).

    Valves: 2-in. intake valves in head, exhaust valves in block.
    Valve clearances:
    Intake: 0.018 in.
    Exhaust: 0.016 in.
    Idle speed:
    YF-938-SD carburetor: 600 rpm
    YF-4002-S carburetor: 650-700 rpm
    YF-4366-S, YF-4941-S, or YF-6115-S:
    IAY-4401A distributor: 650-700 rpm
    IAY-4401B distributor: 700-750 rpm
    1956 Willys CJ-5

    Never take life too seriously. Nobody gets out of it alive anyway

  3. #3
    Join Date
    Jan 2007
    Location
    Glens Falls, NY
    Posts
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    Default Re: 4-134 firing order and distributor rotation - 1964 cj5

    SIDSCJ - thanks for the reply, any clue why there is contrary information out there?

  4. #4
    Join Date
    Jun 2004
    Location
    New Haven, Vermont
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    Default Re: 4-134 firing order and distributor rotation - 1964 cj5

    I tend to trust the earlier manuals and tech sheets like found on the CJ3B page etc. That Auto Zone listing covers up thru '86, probably refers to the AMC four or the GM "Iron Duke" 4 cyl in there and it's a typo on the listing as far as c.i. displacement. I'll trust a NAPA book before another chain store, most of these newer stores weren't even around when your Jeep was made. Here's a great link:http://www.film.queensu.ca/Cj3b/Tech.html
    1956 Willys CJ-5

    Never take life too seriously. Nobody gets out of it alive anyway

  5. #5
    Join Date
    Jan 2007
    Location
    Glens Falls, NY
    Posts
    231

    Default Re: 4-134 firing order and distributor rotation - 1964 cj5

    I understand - thak you again

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