Oil & Fuel Diesel in engine oil 385 Yangdong

valley · Aug 14, 2009

Greetings, I checked the engine oil today and it was way over full. I pulled the plug didn't have time to measure how many quarts came out but it looks like too much. Does that mean a pump injector replacement or can it be fixed? The engine is running fine I don't expect and injector leak. What do you think? Thanks

Affordable · Aug 15, 2009

Are you sure it's diesel ? Sometimes a seal on the hydraulic pump will blow out and leak oil into the engine crankcase ? If it is diesel it could be the injector pump not a common issue but possible ,is your hydraulic oil level full ?

Tommy
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Diamondpilot · Aug 15, 2009

Tommy is leading you in the right direction. Check your hydro level.

Chris

greg_g · Aug 15, 2009

This point may be academic if both engines use the identical fuel delivery and hydraulic layouts. But I was under the impression that the FT254 was equipped with the JD385 (Jiangdong? Jaingling?), as opposed to the YangDong Y385.

Not that I doubt your word, the importer may have actually ordered his with Y385s. But it might pay to double check the engine label anyway.

//greg//

RonMar · Aug 15, 2009

Did it smell strongly of diesel? I think by the design of these IP's, it would be more likley to have diesel leak out the IP case vent than into the crankcase. A dribbling injector might be putting esough liquid fuel into a cylinder for some to leak by into the case, but it would take a LOT of running to make a noticible change in the oil level IMO.

Hydraulic fluid leaking from a pump shaft seal is a far more likley reason IMO.

valley · Aug 15, 2009

Thanks for the thoughts! Tommy I'll look in that direction. The first owner removed the dipstick and installed a snorkel on the hydraulic tank.
Hi Chris, been watching your posts. Greg it is a Y385, didn't know there were two engines used. I checked the smell Ron, but couldn't tell for sure. I'll see what I can find. The gauge was very close to empty but dont remember how much fuel was in when I started working. Thanks again. Richard

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Bob Rooks · Aug 15, 2009

An oil analysis will tell you for sure what you have (and more), but first you have to believe that it will be money well spent.

valley · Aug 15, 2009

Nothing conclusive. There was just over 6 quarts with what was in the filter drained from the engine. The hydraulic oil was down a bit but I have the FEL up and blocked so I can open the bonnet, hood, helmet, what you ma call it.
Tommy wrote like it was more likely the hydraulic pump seal, I think I might prefer that. There was a slight smell of diesel to the oil. I have an leak in the backhoe to find. I could put oil in and watch it more closely.
Bob, Oil analysis, what are we talking 20, 50, 75, 100? I won't give up one of the kids. Never had one done, who does them? Richard

Bob Rooks · Aug 15, 2009

"Google" oil testing or oil analysis and you will find lots of places that do it - even Amsoil. Oil analysis is a more sophisticated form of predictable failure analysis. I use Staveley Services at $26.00 a pop, others are undoubtedly cheaper but you get what you pay for. I will decrease my oil change interval to 200 hrs.
See my results here:http://www.ctoa.net/uploads/newbb/780_4a73252910c14.jpg

valley · Aug 16, 2009

Ron, I don't have a crankcase vent to the intake on this tractor. I will set up one.

Bob, I found the # of a Lab in Gardnerville,Nevada I think I'll call them tomorrow. I may not have a test done at this time but its good to have a lab that close. The price you mentioned is way under what I expected for an analysis.

Richard