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Thread: KHK intake manifold nut wrench

  1. #1
    Join Date
    Aug 2007

    Default KHK intake manifold nut wrench

    Honest, I did search this forum to see if this has been covered, but could find nothing. I need an open end wrench for the intake manifold nuts on my 1956 KHK. It looks like it has an opening of ~2" -- is that correct?
    Where is a good source for this wrench?
    George Tinkham
    Springfield, IL

    1941 Indian 841
    1948 Indian Chief
    1956 H-D KHK
    1960 CH
    1964 BMW R69S
    1966 Honda Touring Benly (aka "150 Dream")
    1984 Moto Guzzi V65Sp

  2. #2
    Join Date
    Aug 2004
    Beautiful Northern New Mexico


    They are on eBay every day. Keep in mind the factory had one wrench that they ground out to fit all the different sized nuts. They are just a steel forging. Sidecar nuts 1-3/4", 45 intake 1-7/8" , BT flathead and WLD 2", BT K, WR 2-1/8. All the same blanks. There are straight and slightly offset but either works fine.
    Robbie Knight Amca #2736

  3. #3
    Join Date
    Jun 2001
    Central Illinois, USA



    Beware of cheap stamped wrenches, as they fit poorly, and won't last.

    It was easiest for me to go to my local farm supply (such as "Farm and Fleet"), and find a decent box-end/open-end wrench to cut in half so the open-end could go into the toolbag. Carving with a 4" grinder would give the most precise fit, and thinning will give precise clearance from finnage; With the other end removed, it easily accepts a "cheater", and the modified box ends proved the best way to loosen frozen nuts.

    Much more cost efficient in the long run than any repop!

    PS: I posted this pic previously, so don't trust the search function...
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    Last edited by T. Cotten; 12-28-2017 at 10:06 AM.
    AMCA #776
    Dumpster Diver's Motto: Seek,... and Ye Shall Find!

  4. #4
    Join Date
    Jul 2008
    North Carolina


    Ive had this NOS wrench (AMF-era packaged) for years and wondered the odd size (1-5/8). Your explanation Robbie makes sense. Thx
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    William Edwards, AMCA #10035

    Attend the 2018 Southern National Meet at Denton Farmpark, NC, 18-19 May 2018

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