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Fuel Pump Install - Ac 4693

Discussion in 'Early CJ5 and CJ6 Tech' started by TonyM, Feb 14, 2020.

  1. Feb 14, 2020
    TonyM

    TonyM Member 2020 Sponsor 2019 Sponsor

    Middle Tennessee
    Joined:
    Jul 30, 2017
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    97
    1956 CJ5, F134, 6 volt.... I'm going to install an NOS AC 4693 dual action fuel pump on my F134. The pump diaphragms and gaskets have been inspected/replaced by a pro to make sure they are tolerant of newer fuels and are in good order, otherwise the pump has never been used.

    This pump has the "sliding pillow block follower". Since the "pillow" does indeed slide/move on the arm, is there a trick during install to make sure that the pillow is properly set on the cam lobe? I'll be using a .14" spacer per the tips on Derek's 3B page here: Willys Fuel Pump Installation at CJ3B.info For visual reference my model fuel pump is shown about 1/2 way down the page.

    I've done fuel pumps before but never this type with the "sliding pillow". It may just naturally seat itself, but I wanted to ask for tips as I don't want to mess it up.

    Thanks in advance for any advice!
     
  2. Feb 14, 2020
    PeteL

    PeteL Member 2020 Sponsor 2019 Sponsor

    Hills of NH
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    No specific info for you. But I seem to recall a member here once posting about finding such a pillow block in their oil pan...
     
  3. Feb 14, 2020
    TonyM

    TonyM Member 2020 Sponsor 2019 Sponsor

    Middle Tennessee
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    Jul 30, 2017
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    Yep - remembered that from a couple years ago and revisited the thread this morning. Hence my quest for knowledge/advice before moving forward :)
     
  4. Feb 14, 2020
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    Sep 21, 2002
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    9,371
    I've wondered about it too, thinking that maybe installing it with the sliding part at it's lowest on the arm would work?
     
  5. Feb 14, 2020
    Howard Eisenhauer

    Howard Eisenhauer Super Moderator Staff Member

    Tantallon, Nova...
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    Nov 22, 2003
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    I wouldn't sweat it, pretty much guaranteed it will center itself on the lobe when you bolt it down.
     
  6. Feb 14, 2020
    TonyM

    TonyM Member 2020 Sponsor 2019 Sponsor

    Middle Tennessee
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    Jul 30, 2017
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    thanks guys - going to install the pump on Sunday, assuming I knock out the honey-do's tomorrow :)
     
  7. Feb 16, 2020
    TonyM

    TonyM Member 2020 Sponsor 2019 Sponsor

    Middle Tennessee
    Joined:
    Jul 30, 2017
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    Fuel pump successfully installed. Jeep running again. On to the next task!
     

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