I would like to retrofit oil pressure and oil temperature. I should know what kind of screw thread this is.
Please take a look at the attached picture.
Hi, The oil pressure galleries are ½" UNF. Without going out to the workshop, I'm about to have my dinner, I don't know the other one's size. In the past when I've fitted a oil temp gauge I have fitted the sender bulb into the side of the sump.
have an SD1 oil pump cover here. The larger sender (gauge?) is parallel, 20 tpi, 1/2", looks like needs a washer to seal it. Small device looks tapered, is 18 tpi, approx 1/2". The oil gallery drillings in the cover are 1/2".
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