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  1. #11
    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

    It is possible that the distributor shaft itself broke, but if so it would seem that you could turn the rotor by hand........was the oil pump still attached when you tried spinning the rotor?

    by the way - that engine (134 ci) is timed via timing gears, as opposed to a chain, and the distributor gear does run off of the cam shaft.

  2. #12
    Super Member 94BULLITT's Avatar
    Join Date
    Feb 2011
    Posts
    7,283
    Location
    Frederick County, VA
    Tractor
    Kubota BX2360 & L4240 HSTC

    Default

    If the roll pin in the dizzy broke it picked up something in the oil pump.

  3. #13
    New Member
    Join Date
    Jul 2012
    Posts
    14
    Location
    Mancelona,Mi
    Tractor
    54 NAA

    Default Re: Distributor not turning after new oil pump

    Removed the distributor and nothing seems to be wrong with it, as I turned the engine over I can see the cam gear moving but I put a screwdriver in the oil pump slot and noway will it turn. My concern is that the rotor wasnt turning when I was trying to start the tractor yet the cam gear apears to turn and the distributor seems ok and the oil pump wont turn, something seems like there might be more going on any ideas????

  4. #14
    New Member
    Join Date
    Jul 2012
    Posts
    14
    Location
    Mancelona,Mi
    Tractor
    54 NAA

    Default Re: Distributor not turning after new oil pump

    Installed new oil pump .. repaired distributor. Cannot find timing marks on flywheel to install distributor at the right crank position tried just do it by #1 piston still no luck...Have gas and spark wont start..even have oil pressure. Where are the timing marks ...worn off??? Any help would be great

  5. #15
    New Member
    Join Date
    Jul 2012
    Posts
    14
    Location
    Mancelona,Mi
    Tractor
    54 NAA

    Default Re: Distributor not turning after new oil pump

    Installed new oil pump .. repaired distributor. Cannot find timing marks on flywheel to install distributor at the right crank position tried just do it by #1 piston still no luck...Have gas and spark wont start..even have oil pressure. Where are the timing marks ...worn off??? Any help would be great

  6. #16
    Super Member 94BULLITT's Avatar
    Join Date
    Feb 2011
    Posts
    7,283
    Location
    Frederick County, VA
    Tractor
    Kubota BX2360 & L4240 HSTC

    Default Re: Distributor not turning after new oil pump

    Do you have the distributor timed to #1 on the compression stroke?

  7. #17
    New Member
    Join Date
    Jul 2012
    Posts
    14
    Location
    Mancelona,Mi
    Tractor
    54 NAA

    Default Re: Distributor not turning after new oil pump

    Yes ,I tried to find the marks on the flywheel and even turned the flywheel by hand could not see marks

  8. #18
    Super Member 94BULLITT's Avatar
    Join Date
    Feb 2011
    Posts
    7,283
    Location
    Frederick County, VA
    Tractor
    Kubota BX2360 & L4240 HSTC

    Default Re: Distributor not turning after new oil pump

    It is on the flywheel. Is your flywheel clean? Here is a picture of a flywheel out of a NAA. I rebuilding the engine for a customer. Your timing needs to be set at 8* BTDC.


  9. #19
    New Member
    Join Date
    Jul 2012
    Posts
    14
    Location
    Mancelona,Mi
    Tractor
    54 NAA

    Default Re: Distributor not turning after new oil pump

    I tried and tried to find these timing marks no luck, I cleaned the flywheel with starting fluid and still could not find them... Anyway I did it with estimating TDC and installing the distributor. Right now the thing is running good starts good. I put a timing light on it and moved to distibutor around at different rpms and still could not see any markings on the flywheel. Thank you for helping.. If there is anything else I should know please let me know

  10. #20
    Super Member 94BULLITT's Avatar
    Join Date
    Feb 2011
    Posts
    7,283
    Location
    Frederick County, VA
    Tractor
    Kubota BX2360 & L4240 HSTC

    Default Re: Distributor not turning after new oil pump

    Quote Originally Posted by RDKG2 View Post
    I tried and tried to find these timing marks no luck, I cleaned the flywheel with starting fluid and still could not find them... Anyway I did it with estimating TDC and installing the distributor. Right now the thing is running good starts good. I put a timing light on it and moved to distibutor around at different rpms and still could not see any markings on the flywheel. Thank you for helping.. If there is anything else I should know please let me know
    The only other thing I can think of is are you sure you were on the #1 wire when you had the timing light on it?

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