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Thread: D2 5U diesel in oil

  1. #1
    Join Date
    Nov 2006
    Location
    Hager City Wisconsin
    Posts
    80

    Default D2 5U diesel in oil

    Hi All,
    I have a d2 5U that is getting diesel in oil.
    Assumption is that the injection pump to filter housing needs to be replace.
    I found this gasket part number (4F5148)
    I have not found the governor to pump gasket in my parts book?
    Should I re-seal the transfer pump at the same time?
    My s/n is 6076, does it have the rear o-ring seal?
    thanks for any help!
    Hope to tackle this project in a couple weeks

  2. #2
    Join Date
    Nov 2006
    Location
    Hager City Wisconsin
    Posts
    80

    Default

    I meant to say pump to filter housing o-ring seal needs to be replaced

  3. #3
    Join Date
    Sep 2010
    Location
    Paso Robles, California
    Posts
    635

    Default

    The answers to your questions have been posted several times. Just go to the search area at the top right of the page and look for it. The D-4 7U info will cover the D-2 also.
    D-4 7U-43159 with 4S dozer and Cat 40 scraper, D-7 3T-1179 with Cat 7S hydraulic dozer, D-7 17A 13,944, D-8 14A-1160 with Cat 8S cable dozer, Cat 12-99E-4433 Grader. All runners and users.

  4. #4
    Join Date
    Nov 2006
    Location
    Hager City Wisconsin
    Posts
    80

    Default

    the D4-7u uses the same gaskets?

  5. #5
    Join Date
    Nov 2006
    Location
    Santa Cruz,CA
    Posts
    220

    Default

    These are the gaskets you'll need for the D2...


    IMG_0133.JPG

  6. #6
    Join Date
    Nov 2006
    Location
    Hager City Wisconsin
    Posts
    80

    Default

    Quote Originally Posted by bcwayne View Post
    These are the gaskets you'll need for the D2...


    IMG_0133.JPG
    thanks for the help!!

  7. #7
    Join Date
    Nov 2006
    Location
    Hager City Wisconsin
    Posts
    80

    Default

    cat o-ring.JPG

    not much o left in these o-rings!! These are the o-rings I replaced in the injection pump housing

  8. #8
    Join Date
    Sep 2009
    Location
    Asotin, Wa
    Posts
    1,715

    Default Sticky?

    Since this comes up quite often, I wonder if this subject could be a sticky?

    BP.
    Two Ton, Diesel 40, No.11 AutoPatrol , 4G D4, 9U D6, 44A D6B, 17R D6C, 9G D7, 7M D7, DW20, Sixty.

  9. #9
    Join Date
    Nov 2006
    Location
    Faunsdale, AL USA
    Posts
    3,624

    Default

    Interesting the difference in shape. I have never seen one out of the plug on the governor end. I can see how it might be a bit difficult to get that plug started in the hole with the o-ring on it. I guess that may be why it leaks much less often than the other one.
    D2-5J's, D6-9U's, D318 and D333 power units, 12E-99E grader, 922B & 944A wheel loaders, D330C generator set, DW20 water tanker and a bunch of Jersey cows to take care of in my spare time

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