|
First, make sure that the oil is not grossly over full. Then go with the PCV valve as someone else suggested. Then follow the line up to the manifold base to make sure it's not roasted, kinked or the base plate is gunked up. The next step is to pull the valve cover on the PCV side to see if the engine is sludged up. Which can open another bag of snakes for you. De-sludging an older motor can lead to major gasket leaks or the oil pump sucking up loosened sludge which often is full of grit and other undesirable contaminents.
Good luck, Bob
|