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Fluid in Oil Again!

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DuaneD

08-26-2001 05:48:12

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I have a JD 2020 diesel (early model - ser. no. ~33000) and recently had the power steering pump seal blow and fill the oil pan with hydraulic fluid. I thought I was going nuts, and the dealer didn't believe that I had hydraulic fluid in the engine oil - "the systems are separate" they said! Anyway, thanks to help from you guys I was able to prevail and the dealer figured out that it was possible to get hyd. fluid in oil pan.

That's part of the history. Now that I rebuilt the steering pump I now have diesel fuel in the oil! I know I'm not nuts because the oil now distinctly reeks of diesel fuel (and I added 2 gals of hydraulic fluid to the system after the steering pump repair so I definitely had a steering pump problem).

Immediately prior to the power steering problem I had my injector pump rebuilt, and I replaced the primary fuel pump.

Finally, my questions. Is this fuel leak most likely the shaft seals on the injector pump? I know the mechanic was very careful about reinstalling the pump because I was present when he did the work. Are there other possibilities? Could my steering pump problem caused the fuel leak? The dealer rebuilt and installed the injector pump, so should they be responsible if in fact the leak is associated with the injector pump?

Any hints/suggestions much appreciated.

Duane

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WTW

08-27-2001 07:45:20

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Re: Fluid in Oil Again! in reply to DuaneD, 08-26-2001 05:48:12

Duane, As Gman said, it is one or both of the two places mentioned. Being the transfer pump has been replaced I would removed the injection pump and see if the seals did or did not get folded during installation of the injection pump. If OK look at the inside diameter of the brass bushing in which the seals run inside for a groove wore in it if a groove is present have the bushing in the injection pump housing replaced. A new correctly installed seal in a worn grooved bushing will sometimes leak where the old original seal worn to match the worn bushing won't. Good Luck, Dave W.

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Gman

08-26-2001 19:16:21

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Re: Fluid in Oil Again! in reply to DuaneD, 08-26-2001 05:48:12

Duane I would change those rubber seals out on pump shaft,which wouldn't be worth causing hard feelings over. I've see those new primary pumps bad,so you will just have to check one at a time till you find the trouble.Those darn little seals on pump shaft,filled my crankcase full cleaned my engine real good,might have to put in some new bearings maybe that was two years ago. Gman

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