Want this question answered?
Plugged positive crankcase ventilation valve or collasped hose for the PCValve.
PCV is positive crankcase ventilation
If it's the stock motor, there is no drain plug under the crankcase. If it's aftermarket there might be a plug to drain oil from the crankcase, which would seldom if ever be necessary.
Johnson Motor Wheel was created in 1914.
split open the crankcase
If the rings are completely worn out they can put more preasure in the crankcase than the pcv can handle. Have it checked out.
how do u remove the lower uint on an outboard motor? Depends on the outboard. Some Johnson/Evinrudes required that the powerhead (engine) be removed first for example. Look for a service manual for your particular motor on ebay, and it will tell you all you need to know to avoid problems.
10W-40 motor oil
Under the motor, tucked up inside the crankcase.
One possible cause is a blocked PCV (positive crankcase ventilation) valve. As your motor is running the crankcase will build with pressure and the PCV system will let the motor breathe. If the PCV valve is blocked or faulty then the motor will look to release the pressure somewhere else.
The type of motor which is known as the Johnson series J0005530, is a fuel-injected motor which uses pistons to operate.
That is a 1956, 30HP Johnson motor.