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John Deere 3020, diesel fuel in the oil

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Kevin

01-20-2003 13:50:55

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I have a problem with diesel fuel getting into the oil. I'm just looking for some suggestions on what it may be. The tractor has a bad miss and knock to it and is blowing white smoke out of the exhaust. I hope this isn't the beginning of it blowing up.

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Kevin

01-23-2003 21:33:15

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Re: John Deere 3020, diesel fuel in the oil in reply to Kevin, 01-20-2003 13:50:55

Thanks to all of you that replied.

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Curious

01-21-2003 16:07:21

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Re: John Deere 3020, diesel fuel in the oil in reply to Kevin, 01-20-2003 13:50:55

I agree with twopop - seen bad injector do this fuel in oil & make miss sound

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Kevin

01-23-2003 21:50:08

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Re: Re: John Deere 3020, diesel fuel in the oil in reply to Curious, 01-21-2003 16:07:21

Thank for your relpy

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Gordon

01-21-2003 06:53:19

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Re: John Deere 3020, diesel fuel in the oil in reply to Kevin, 01-20-2003 13:50:55

Do not run it any more before you pull the pan a bearing could be going tight.Maybe no damage to the crank yet.Check filter {cut it open} and oil on bottom of pan.You might be able to clean crank with it in the tractor.

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Kevin

01-23-2003 21:51:39

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Re: Re: John Deere 3020, diesel fuel in the oil in reply to Gordon, 01-21-2003 06:53:19

Thanks for your relpy

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MPK

01-20-2003 20:26:11

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Re: John Deere 3020, diesel fuel in the oil in reply to Kevin, 01-20-2003 13:50:55

I had this happen on a 4020 and it was the seal in the injection pump. Most likely you will need to overhaul the pump. It could also be the diaphram in the lift pump.

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Kevin

01-23-2003 21:52:27

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Re: Re: John Deere 3020, diesel fuel in the oil in reply to MPK, 01-20-2003 20:26:11

Thanks for your relpy

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Mike J

01-20-2003 19:39:53

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Re: John Deere 3020, diesel fuel in the oil in reply to Kevin, 01-20-2003 13:50:55

Had a 4010 that got to much ether bent a push rod so the valve on that cylinder didn't close just had to change the push rod.

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Kevin

01-23-2003 21:53:08

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Re: Re: John Deere 3020, diesel fuel in the oil in reply to Mike J, 01-20-2003 19:39:53

Thanks for your relpy

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Red Man

01-20-2003 16:31:37

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Re: John Deere 3020, diesel fuel in the oil in reply to Kevin, 01-20-2003 13:50:55

Usually the fuel transfer pump diaphram goes bad and lets fuel in the oil, or could be the seal where the injection pump mounts to the engine.

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Kevin

01-23-2003 21:53:44

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Re: Re: John Deere 3020, diesel fuel in the oil in reply to Red Man, 01-20-2003 16:31:37

Thanks for your relpy

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twopop

01-20-2003 16:30:07

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Re: John Deere 3020, diesel fuel in the oil in reply to Kevin, 01-20-2003 13:50:55

usually the seals on the injection pump shaft are leaking,or the diaprham in the transfer pump has a hole in it.but the bad miss could be a hole in the piston or broken rings.even possibly a blown injector tip.i would suggest you pull the injector on the missing cylinder and check it.then pressurize the cylinder and see if you get air in the crankcase.

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Kevin

01-23-2003 21:54:21

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Re: Re: John Deere 3020, diesel fuel in the oil in reply to twopop, 01-20-2003 16:30:07

Thanks for your relpy

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