Engine is severely worn.
The breather tube on a Tecumseh 5 hp engine may spit oil due to excessive crankcase pressure, which can be caused by worn piston rings or a damaged cylinder. This pressure forces oil out of the breather, leading to oil spitting. Additionally, overfilling the crankcase with oil can exacerbate this issue, causing oil to be pushed through the breather. Regular maintenance and proper oil levels can help mitigate this problem.
Not enough info.
That should be the crankcase breather tube.
Check your oil, if it looks the same you may have a blown head gasket. If your oil looks okay you may just have had some water get in it from somewhere else. I found that i had milky residue in my breather and the problem ended up being the carb was forcing air back down the breather tube. When air is forced into a small space it compresses and moisturises. The solution was to take off the breather tube and put a cap or separate breather filter on it.
The oil is probably coming in through the crankcase breather tube and into the air breather assembly. You either have a faulty PCV system or a very tired engine with "blowby".
usually a gastet problem Check the breather tube, you might be getting "blow-by" into the intake.
Remove the crankcase breather cap up in front of the engine and add motor oil down the tube.
On the top side of engine, underneath breather element tube, under top radiator hose
Engine over full, diesel in the oil, excessive blowby.
Oil blowing out of the breather tube on a 1340 engine can be caused by excessive crankcase pressure, often resulting from worn piston rings, a faulty PCV (positive crankcase ventilation) system, or an overfilled oil level. These conditions can prevent proper ventilation and lead to oil being forced out of the breather. Additionally, engine blow-by, where combustion gases escape past the piston rings, can exacerbate the issue. Regular maintenance and checks can help prevent these problems.
High Oil Pressure In an engine usually comes from a clogged crank case breather, or bad oil pump.. best advise is to do a pm and hope for the best
there is a breather tube with a large vent cap on top, pull the vent cap off and the tube is exposed, put oil in the tube. It is located on the right side ( sitting in seat ) of engine just forward of distributer ! Terry !