As some may know, I have two (2) PS reservoirs in the Cressida; 1 for the PS, and 1 (the original Cressida one), which circulates the fluid which would normally drive the hydraulic fan (in the Soarer from which this engine came).
Anyway, at present, the Cressida PS reservoir has the Soarer's "Engine Fan Fluid" cap on it and, while it fits, isn't a perfect-sealing fit. So, I need a cap off an OEM 7M PS reservoir from an MX83...