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Re: Ac 7000 engin oil to high on stick

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Author  [Modern View]

09-17-2013 21:21:54

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Do a burn test on the dipstick....if you get a crackling sound, it is water or anti-freeze in the oil. If you get black tracers or faster burning, it is fuel in the oil. A slow, even flame means you have only oil in the crankcase. You obviously have increased "oil" level.

My issue with gaining fluid on the 4450 MFWD was a bad injector pump, losing fuel into the crankcase, in as little as 3-4 hours, it was way over full. Sample sent to JD was "do not run this tractor"! Rebuilt the pump over a decade ago and it"s been fine since. Rated 145 hp, pump set at 190, no problems, and it has almost 9000 hrs on it.

Issue on the 3020 with Roosa-Master pump, in the 90s, was that notorious ring that deteriorates and plugs the lines, rebuilt and works fine ever since. Yes, there are multiple reasons why you get fuel passing into the crankcase.

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09-18-2013 07:21:37

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 Re: Ac 7000 engin oil to high on stick in reply to JMS/.MN, 09-17-2013 21:21:54  
I did a burn test of the oil I took out of tractor and it flames up and burns on its own on a screw driver. So looks like fuel and not hytrans oil. The injection pump is a Stanadyne.

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09-18-2013 07:35:51

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 Re: Ac 7000 engin oil to high on stick in reply to Gordie, 09-18-2013 07:21:37  
RoosaMaster pump is Stanadyne now. There is a small chance on the DM model pump that the shaft seals are leaking on the OD if the housing bore had burrs, tearing the rubber case seal when pressed in place. Pump may need air pressure checked with drive end up, with bearing area filled with solvent. Any air bubbles at all getting through means seal damage. Pump must have head removed to replace the rear seal if leaking.

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09-18-2013 11:12:16

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 Re: Ac 7000 engin oil to high on stick in reply to Dieseltech, 09-18-2013 07:35:51  
Called the diesel shop and they said they would do the test and make any repairs needed. Wont be today, I'm in the middle of 4th cutting hay this week. But that's where we'll start. Ill keep you posted of the outcome.

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09-18-2013 08:58:41

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 Re: Ac 7000 engin oil to high on stick in reply to Dieseltech, 09-18-2013 07:35:51  
Thanks, Ill take pump back off and take it in to Diesel Equipment and have them look it over before I take tractor to dealer.

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