912 Oil Pressure

[funflying]

Thanks Paul
And yes those numbers are considered within specs so I’m going to continue to monitor but I guess since I’ve been focusing on the oil pressure I was concerned when I didn’t see a rise, or much of a rise, moving from low RPM to run up.

Also have had another person mention the replacement of the ball with the mushroom(cone) on the pressure regulator spring. Didn’t know about the shim so thanks for the information.

[Mich48041]

According to my notes, 3.2 volts on Dynon D-180 EMS Pin 6 = 30psi.
Disconnect the wht/yel wire from the oil pressure sender and connect it to
3.2 volts positive (two flashlight batteries in series). Connect the negative
side of the 3.2 volts to ground.

[SeattleAviator]

check to be sure you have an exact replacement. A quick check on-line indicates that this sensor was changed on newer Rotax 912 engines. Perhaps you have a newer style sensor that is not compatible with the Dynon EMS. Dynon can probably also provide some guidance. I have had newer fuel sensors on the 912 not work correctly with the EMS.

[RFSchaller]

Mine has always sat in the middle of the green band at about 50 psi +/-5 except when my oil pressure sensor went belly up.

[HansLab]

Rotax states in there HeavyMaintenanceManual concerning Lubrication that 'washer under the spring/ball combination is only needed when after changing [items] a low oil pressure is found'
So: a washer might solve your problems. Sound logic, too?

[bobg56]

I have the Honeywell transmitter installed on the oil pump housing, I've been through 3 so far in about 400 hours so I bought a remote mount kit and installed it on firewall plus switched to the cone style pressure relief. Better indication, less fluctuations.