| Author |
Message |
    
Bailey Lee
| | Posted on Thursday, August 26, 2004 - 4:56 am: | |
Besides the obvious causes of excessive oil consumption such as:
1.Worn / broken pistons/liners/rings
2.Stuck rings
What would cause a good running 1655 to use 2 quarts of oil a day? The owner says he is using 10W30 Rotella which may be part of the problem due to the thin viscosity.
Any thoughts on remedies to correct the high oil consumption with out rebuilding?
Thanks for all input. |
John Schwiebert
| | Posted on Thursday, August 26, 2004 - 5:37 am: | |
Gas or diesel? How many hours? Did it start all at once? What are you doing with the tractor? |
John Schwiebert
| | Posted on Thursday, August 26, 2004 - 12:26 pm: | |
Did this start all at once? Is it a gas or diesel or propane? How many hours on the engine? Have you checked anything such as acompression test cylinder leakaage test, any external leaks, etc |
Bailey Lee
| | Posted on Thursday, August 26, 2004 - 2:07 pm: | |
The tractor is a 1655 diesel. The owner bought it two years ago with a leaking head gasket. He replaced the gasket, hoses, belts and had the radiator boiled out.
The number of hours on the tractor is unknown.
There are no obvious external leaks.
The tractor starts easily and runs good and is used for brush hogging and loader work around a small farm. It is used 2 or 3 times a week. The owner indicated that it has burned 2 qts a day since he has had the tractor, but since he uses it only occasionally, he just added oil every day it was used. For me...that much oil use is unacceptable. However, in all other respects this is a nice tractor. (QC Loader, new tires, excellent paint, etc.)
I would like to do a leakdown or compression test on the motor to isolate if the rings are stuck or worn, but I am not familar with the correct proceedure on a diesel since my tester and compression gage are designed to fit a sparkplug hole of a gas engine.
I had also wondered if the crankcase breather might be blocked, building crankcase pressure that was forcing oil up the cylinders...?
On the other hand, If the oil rings are gummed up and stuck, allowing the oil to migrate into the combustion chamber, is there a reliable method to free up the oil rings without disassembly?
The light viscosity 10W30 Rotella oil he is using is MUCH lighter than the 40W I use in my AC HD6G diesel crawler, and I thought that may be contributing to the problem. My thought was that checking the breather, switching to a straight 40W Rotella and possibly trying a top end cleaner to free the rings might reduce the oil consumption to a tolerable level.
Any other suggestions or ideas of a potential cause?
Thanks to all... |
John Schwiebert
| | Posted on Thursday, August 26, 2004 - 5:00 pm: | |
Remember a couple of things. The engine has 3 ring pistons, the bottom ring is the oil control ring. If it starts good your rings are probably O. K. I would probably use a straigh 30 API class DS or 15W-40 Diesel oil. We had a 1600 diesel that way once and a set of Perfect Circle seals solved the problem. You will need to take the intake off and hava good small flash light to check to see if this is the problem. The crankcase breather is the tube from the valve cover. Take the tube off and see if vapor comes out of the valve cover.Interested in more details let me know. |
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