Follow on to my previous post. Looking for adapter to fit the oil pump port for a second oil pressure gauge. Rally Bob says it is a tapered pipe thread. I cannot find anything with a tapered thread, only straight thread m14 x 1.5 to 1/8 or 1/4 inch npt threads which will connect to 1/8 inch od tubing to the gauge. Is this truly a tapered male m14 x 1.5 pipe thread? If so, can anyone tell me where to get one?