HOW WILL YOU TEST THE CRANK CASE RELIEF VALVE
TESTING OF CRANK CASE RELIEF VALVE After engine is stopped, Remove the flame trap after that press up the valve disc and check the the action of opening and closing movement the valve should be opened smartly, and closed positively and rapidly. the valve must be oil and gas tight when engine is running we must only check the oil leakage it will indicate the valve is sealed or not.