Diesel in the oil?

CHRISCO · Jul 14, 2009

Sunday I was running my deutz dx90 for raking and was going along and I stopped to check the dryness and noticed that the vent tube was blowing out oil so I stopped and checked the oil and it was full of diesel so I dropped the oil right there and put new in. After 2.5 hours it had not gone higher then what I had put in. So i dont know what happened because it was not missing and running fine. My suspition is the the key did not get fliped off of preheat or II on the key switch. Beacuse the kids "both close to retirement" left it there while running it for a couple days while I was on vacation? Or could it be my front seal on the pump is leaking? I dont think a have a leaky injectior.

Your thought would help!

Chrisco

TomTex · Jul 14, 2009

Dont know anything about your tractor model, but does it have a mechanical, cam driven lift pump? If so, the diaphram. Tom

CHRISCO · Jul 15, 2009

Not that I know because the tank is higher than the pump.

Norberg · Sep 15, 2009

The seal in the injection-pump could be leaking fuel through the end of the pump (where it bolts to the block) into the crankcase. I don"t remember if the DX90"s have the 912 or 913 series engines. The 912"s have their own oil-resovoir. The 913"s are lubed directly from the engine.

maplehillfrm · Sep 16, 2009

(quoted from post at 16:52:49 07/14/09) Sunday I was running my deutz dx90 for raking and was going along and I stopped to check the dryness and noticed that the vent tube was blowing out oil so I stopped and checked the oil and it was full of diesel so I dropped the oil right there and put new in. After 2.5 hours it had not gone higher then what I had put in. So i dont know what happened because it was not missing and running fine. My suspition is the the key did not get fliped off of preheat or II on the key switch. Beacuse the kids "both close to retirement" left it there while running it for a couple days while I was on vacation? Or could it be my front seal on the pump is leaking? I dont think a have a leaky injectior.

Your thought would help!

Chrisco

I just went through this with my 2500A international ,,not the same tractor but , I pulled my hair out, changed teh seal in teh pump twice, once because it was believed to be the culprit, teh second time because it was still leaking into the crankcase after replaced..

the second time the seal was pushed out a bit,and a injector shop said it looked like a clogged return line or the check valve in teh bottom of the tank,,

I had a bad check valve .. now no fuel in the oil, check you return line , or see if you have a check valve on the return line into the tank,, but my return line is lower than the pump,,, good luckpat

Diesel in the oil?

CHRISCO

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TomTex

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CHRISCO

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Norberg

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maplehillfrm

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