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  1. #1
    New Member
    Join Date
    Jul 2012
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    14
    Location
    Mancelona,Mi
    Tractor
    54 NAA

    Default Distributor not turning after new oil pump

    I replaced my oil pump in my 1954 naa started it up it ran for 15 seconds then quit found no spark and the rotor not turning. What did I do wrong and what will it take to fix it ????

  2. #2
    Super Member 94BULLITT's Avatar
    Join Date
    Feb 2011
    Posts
    7,279
    Location
    Frederick County, VA
    Tractor
    Kubota BX2360 & L4240 HSTC

    Default Re: Distributor not turning after new oil pump

    Did you prime the oil pump?

  3. #3
    New Member
    Join Date
    Jul 2012
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    14
    Location
    Mancelona,Mi
    Tractor
    54 NAA

    Default Re: Distributor not turning after new oil pump

    No not really .. I filled the pump before I bolted it in and I added oil on the filter side before installing the filter. I let the tractor turnover for about 30 seconds before starting

  4. #4
    New Member
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    Sep 2009
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    20
    Location
    Southern Ohio
    Tractor
    1984 John Deere 2750, 1976 JD 2240, 1951 Ford 8N, 1955 Ford 650

    Default Re: Distributor not turning after new oil pump

    Did you notice whether there was oil pressure while it was running? I would make sure the drive shaft between the distributor and oil pump is completely seated in the oil pump, otherwise, the distributor cannot be positioned properly. Additionally, with the distributor removed, check to make sure the oil pump can be turned.......I suppose it would be possible for something to jam the pump, causing the pin attaching the distributor drive gear to shear.

  5. #5
    New Member
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    Jul 2012
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    14
    Location
    Mancelona,Mi
    Tractor
    54 NAA

    Default Re: Distributor not turning after new oil pump

    I did not remove the distributor and when I installed the pump it seemed to have to line up with the distributor and go into the shaft. I thought the oil pump ran off the distributor and the distributor was gear driven off the crank.

  6. #6
    New Member
    Join Date
    Jul 2012
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    14
    Location
    Mancelona,Mi
    Tractor
    54 NAA

    Default Re: Distributor not turning after new oil pump

    I did not see any oil pressure

  7. #7
    New Member
    Join Date
    Sep 2009
    Posts
    20
    Location
    Southern Ohio
    Tractor
    1984 John Deere 2750, 1976 JD 2240, 1951 Ford 8N, 1955 Ford 650

    Default Re: Distributor not turning after new oil pump

    You are correct, the pump runs off of the distributor shaft........I am wondering whether something caused the gear pin (#11 in the diagram below) to shear.
    Attached Thumbnails Attached Thumbnails -naadizzy-gif  

  8. #8
    Platinum Member
    Join Date
    Feb 2011
    Posts
    828
    Tractor
    Furakawa 351

    Default Re: Distributor not turning after new oil pump

    I do not know what engine you have, but on most engines the cam drives the distributor, and the distributor drives the oil pump.
    If it fired, and ran and now the rotor does not turn while cranking, the distributor shaft could of broken 5% chance, the cam could have broken, the timing chain could be broken if it has one.
    Very few engines have the crank drive the distributor if yours does please give me the make and model, I have a few old manuals.

  9. #9
    Platinum Member
    Join Date
    Feb 2011
    Posts
    828
    Tractor
    Furakawa 351

    Default Re: Distributor not turning after new oil pump

    If the distributor pin shears it will still drive the oil pump, it will not keep the distributor, in time it may turn.

  10. #10
    New Member
    Join Date
    Jul 2012
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    14
    Location
    Mancelona,Mi
    Tractor
    54 NAA

    Default Re: Distributor not turning after new oil pump

    I guess I will pull the distributor out to see what happened to it. I tried to turn it by hand ... no luck

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