If someone would be so kind as to measure the location and diameter of the 13B rotor housing oil injection port. Maybe measure the height from the oil pan gasket surface to the center of the hole (measured vertically). Its the one that the metering oil pump uses to add oil directly to the trochoid surface. A fairly accurate measurement is appreciated. Please don't go eye ball it with an old wooden meterstick half worn out. Also I assume it is centered in the housing. As a reward I'll send you a pdf of Rotary Engine by Kenichi Yamamoto that I acquired once.

Chris

super easy, on the side of the housing with the exhaust port, its between the 2 tension bolt holes.

Perfect, thanks. Whats your email that will accept 3.4MB?

Chris

zach12@aikenelectric.net https://www.nopistons.com/forums/pub...#>/biggrin.png