Not long ago I did oil and oil filter change on my tractor (@1,400 hrs), I noticed a very brief burnt oil smell, I looked around for leaks but didn’t find any. I have noticed there will be very brief dark black smoke coming out from the exhaust every time I start it, which I believe is normal. It’s been doing this since I purchased it, even before the oil and filter change. At 1,440 hours I checked the oil and the level was low. I decided to change the oil and oil filter again, I measured the used oil and it was at 0.8 gallons. I usually put in 1.175 gallon of new oil, following the service manual instructions. I cleaned the air filter, replaced all breather parts on the head cover. I can still smell brief burnt oil smell about every other 15 minutes while the engine is running. I did some searching online and found several possibilities. Is it running rich or is the shut off solenoid not working? Need to do any adjustments on the governor/speed control plate? someone suggested I take off the oil filler plug on the head cover to see if the oil splatters out which indicates worn out valve stem seals. I placed a piece of white cardboard above the opening while the engine was running. After a couple of minutes, there wasn’t even a speck on the cardboard. I know it’s not valve stem seals or piston rings because I don’t see any blue or bluish/gray smoke. Any recommendations would be appreciated.
B2710 Oil Consumption
- Thread starter GhostRider29
- Start date
What comes out of the breather pipe (item 130) when the engine is at speed and under load? Smoky vapor and oil mist? I suppose a guy could fashion some sort of catch can and see what shows up after 10 hours use...
Yes I did. Also I check the hoses from the air filter housing. No blockage or anything.
Blowby is a function of engine load. It can be almost zero at idle, and quite bad at speed and under load.
Is it common for the piston rings or valve stem seals to be worn out at 1,400 hrs? Or is there something else I am missing?
Not common, but you are looking for causes explaining why you're using 1.6Q of oil in 40 hours, right? That's also not common...