Some valve covers have splash guards inside them for the intake air hole and PCV so you should have the PCV in the correct place. On a 258, that is the front hole.
The back or other hole has to have filtered fresh air going in.
Your middle hole is just plain leaking and needs to be fixed by the sounds of it. The 'help' line of parts have grommets of differing sizes and you may even need some gasket maker to seal it up or your PCV flow is off so it is blowing oil....
The stock 86 CJ7 PCV valve relies on the input from the charcoal canister (gas tank vent) to have the correct suction for your engine. there should be a T fitting in the PCV line to pick up the canister purge line. The PCV controls engine sludge so it is kinda important it works right. The gas tank also needs a vent and the canister is the best way to do it. It doesn't rob power, it just makes the PCV work correctly.
86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
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