Thread: How much is too much oil
08-07-2008, 04:59 PM #1
How much is too much oil
I pulled my cyl's today and noticed that I have aboout a 1/2 to 1" oil collected in the bottom of the crank case. Is this normal or maybe an issue from being stored and the oil drained back? or....should I remove it all or just leave it? It does seem to be keeping the rod bearings just wet and probally splashing the walls I imagine.
Engine ran fine, good compression and cyl's look new. I took it apart to bolt on some 1300's and to deal with some worn PV's.
08-07-2008, 08:15 PM #2
I think your fine. You want oil in the crankcase on a two stroke.
08-07-2008, 11:19 PM #3
I end up dumping some in when I do motor builds I lube all the crank bearings liberaly and it ends up draining into the case no biggee at all.
10-12-2008, 08:55 PM #4
Does it matter what kind of oil to use? I've read that 4 stroke oil should be used in the bottom end. Any comments with this?
10-12-2008, 09:29 PM #5
10-13-2008, 09:04 PM #6
So two stroke oil, only in the bottom end of a two stroke?
10-13-2008, 09:16 PM #7
- Join Date
- Jul 2007
- near Toronto, Canada
Small dribbles of liquid oil found inside the crankcase is fine, but an inch of liquid oil depth seems like a lot. If the liquid oil gets pumped up into the cylinder head, it could hydraulically lock the engine, which causes damage.
When a 2-stroke engine is running at high RPM, there is only a misting of 2-stroke oil inside the crankcase, not a pool of liquid sitting in the bottom.
On a 2-stroke engine, you only use 2-stroke oil, and you only put it into the oil tank (not the crankcase), OR if the system is set up for pre-mixed oil+gasoline, then the 2-stroke oil goes into the gas tank, in the proper proportion.
You don't normally poor liquid 2-stroke oil into the crankcase of a 2-stroke engine, other than some dribbles during a repair or rebuild, or perhaps if you are trying to recover a water flooded engine.
Are you sure it is just oil in there, and not oil plus water?
If you have ANY water inside the crank case, you need to get it out right away. Water causes rust, and rusted bearings are very bad for an engine.
10-13-2008, 10:53 PM #8
10-14-2008, 08:28 AM #9
- Join Date
- Aug 2006
If it was cranked and did not start the oil would accumulate in the case , as soon as it runs it will purge , like Bill stated and what I also do is dowse the bearings with 2 stroke when I rebuild so the first run is well lubricated but smoky , no biggie
10-14-2008, 08:46 AM #10
Just to elaborate a bit on this subject. I oil the bearings during a rebuild, that's it! the lubrication comes from fuel oil mix after that. If you have a large amount of oil in the cases it could be a faulty oil pump or some other anomaly.
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