Hey all, I have a strange plug I found in my engine bay today. I have a 77 Mini 1000 (998cc) with some custom work done on the engine, but nothing extreme. I can't speak to specifics, since I've only had the car about a month, and the work was all done by the previous owner, whom I am not in contact with.
I took off the head, in order to do valve work, and replace all the gaskets. I found this plug exposed last night, and can't remember if I took it off. Also, I breifly looked in the bay, and I can't see specifically where it would go.
It's on the right side, and was tucked up in the corner next to the (wiper motor?)
Any help at identifying this would be a great help. Thanks!












