Hopefully this gets sticky'd. There seems to be some debate over WHERE the oil comes from. I'm here to settle this once and for all, as I am tired of replying over and over again to this simple problem that anyone can repair very easily.
First of all, many DOHC engines have spark plug well seals. This, however, is not the case on the 87-92 7M engine.
Please refer to my custom diagram. When it says (color, shape) that is what I'm talking about. Pretty straight forward.
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