So my Cub has oil pressure around 22psi but I notice smoke is coming out of the dipstick. I cleaned the blockage I had in air filter oil bath line and thought that would fix it. It smokes more when it is idling than when it is running hard. No smoke comes out of exhaust once engine warms up. Is bad rings the only possible answer?
- Thread starter Satohbill
- Start date
Janicholson
Well-known Member
I using it for 8 hours requires a quart of oil, it is time. Check it at 4 hrs to be sure to not run out. Jim
Steve@Advance
Well-known Member
A little smoke is normal.
There should also be a crankcase vent tube. Be sure it is clear.
As long as it's not blowing oil, or lifting the dip stick, give it some time, watch the oil, see what happens.
Don't know the history, but if it has been stored, the rings may be rusty or stuck. They may get better with some run time and fresh oil.
There should also be a crankcase vent tube. Be sure it is clear.
As long as it's not blowing oil, or lifting the dip stick, give it some time, watch the oil, see what happens.
Don't know the history, but if it has been stored, the rings may be rusty or stuck. They may get better with some run time and fresh oil.
Texasmark1
Well-known Member
Overlooked sometimes is worn valve guides. These usually show up as burning oil when cold but as you say, quits when warmed up. Other way they show is to let it idle for awhile and then "goose" it. If you get a puff of blue smoke that's where it came from, black is unburned fuel.
My '63 Ford 2000D, at 3750ish hours, never had a wrench on the engine proper and probably never will. It smokes a bit when you goose it but doesn't burn oil. I change the oil once a year and don't remember the last time I added between changes. Exhaust is a little bit blue when first started but cleans up once warm. Obviously goosing gets the above results, a little blue and black. I use snake oil additives.
I think about what and where it is in life and it's going to continue as is. It starts fast, runs and works great, couldn't ask for a better tractor of the sort. What am I to gain by ripping into it and starting a chain reaction events of this change caused that problem and that caused this.............. Nothing but something extra to do, money to spend for what, and loss of the usage while it's down.
My '63 Ford 2000D, at 3750ish hours, never had a wrench on the engine proper and probably never will. It smokes a bit when you goose it but doesn't burn oil. I change the oil once a year and don't remember the last time I added between changes. Exhaust is a little bit blue when first started but cleans up once warm. Obviously goosing gets the above results, a little blue and black. I use snake oil additives.
I think about what and where it is in life and it's going to continue as is. It starts fast, runs and works great, couldn't ask for a better tractor of the sort. What am I to gain by ripping into it and starting a chain reaction events of this change caused that problem and that caused this.............. Nothing but something extra to do, money to spend for what, and loss of the usage while it's down.
BarnyardEngineering
Well-known Member
- Location
- Rochester, NY
It's called blowby, and all engines have it to some degree or another. If the engine runs well, has enough power to do what you want it to do, and does not burn excessive amounts of oil, such as a quart in 8 hours, I would recommend not worrying about it.
The cost to do a full overhaul on that engine is up around $2000, to make a $1000 tractor worth $1100.
The cost to do a full overhaul on that engine is up around $2000, to make a $1000 tractor worth $1100.
probably a little blowby...
HD diesel rated oils are spec'ed for reduced blowby, less velocity breakdown, and additives to keep rings from coaking up. further more will actually clean up the rings and ring lands a bit.... and can help....if your running a light duty oil...
If your already running an hd oil, wont make any difference.
HD diesel rated oils are spec'ed for reduced blowby, less velocity breakdown, and additives to keep rings from coaking up. further more will actually clean up the rings and ring lands a bit.... and can help....if your running a light duty oil...
If your already running an hd oil, wont make any difference.
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