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45 diesel fuel leak into oil pan
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Allan Drone View Drop Down
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Joined: 03 Dec 2017
Location: Swan, Iowa
Points: 2 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Allan Drone Quote  Post ReplyReply Direct Link To This Post Topic: 45 diesel fuel leak into oil pan
    Posted: 03 Dec 2017 at 7:25pm
My father in law has a 45 diesel that we have been fighting for a little while. Diesel fuel keeps leaking into the oil pan. Have resealed a few things but kinda scratching our heads. Any suggestions would be greatly appreciated.
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Don(MO) View Drop Down
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Joined: 12 Sep 2009
Location: Bates City MO.
Points: 6862 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Don(MO) Quote  Post ReplyReply Direct Link To This Post Posted: 03 Dec 2017 at 7:39pm
Two things to look at are the lift pump shaft seal ( the lift pump in the lower left side of the injection pump), or the O-ring below the injection pump head.  
3 WD45's with power steering,G,D15 fork lift,D19, W-Speed Patrol, "A" Gleaner with a 330 corn head,"66" combine,roto-baler, and lots of Snap Coupler implements to make them work for their keep.
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TomMN View Drop Down
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Joined: 13 Sep 2009
Location: Elbow Lake, MN
Points: 858 		Post Options Post Options   Thanks (0) Thanks(0)   Quote TomMN Quote  Post ReplyReply Direct Link To This Post Posted: 03 Dec 2017 at 9:29pm
I took some pictures of the O-ring Don mentioned.  When you take the cover off for this area there should only be motor oil in there.  If there is diesel fuel then this is where you have a leak, so this one is real easy to check.  Here is a link to my pictures: http://allis01.com/fossto/56WD45D/ac-wd45d-PSB.html

Here are some more pictures of the injection pump:


Edited by TomMN - 03 Dec 2017 at 9:34pm
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injpumpEd View Drop Down
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Joined: 13 Sep 2009
Location: Walnut IL
Points: 5075 		Post Options Post Options   Thanks (0) Thanks(0)   Quote injpumpEd Quote  Post ReplyReply Direct Link To This Post Posted: 04 Dec 2017 at 7:06am
control unit oring is a good source of fuel in the oil too.
210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!
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