Oil thermostat on Rotax 912

[Slyfox]

I consider myself a weiny. I went flying yesterday it was cold, like 12 degrees. windy yup, that too. It was 11 gust to 20 or so. I took the RV.
On the thermostat you don't have to have the shutter as well, the right thermostat will not let the oil even go into the oil lines to the cooler, the cooler is completely bypassed, having the thermostat will make sure no cooler or lines are in the flow. will be warmer on oil temps. my take

[Dusty]

Here's the kiwi solution to slow warm ups and varying oil and coolant temps.Yes it's complicated but it's a fly and forget system .A typical days flying here can be a take off ar 10- 25c air temp,climb thriugh 0 to minus 10 then back to 10-25 on the other side of the island.
I installed a full flow coolant thermostat,removed my oil cooler and installed a heat exchanger.My temps start to rise almost immediately after startup and have both stabilised by the time I have reached the run up area.both temps stay together(92c) and apart from approximately a 5c variation,never very from a full power climb out to a 20 minute decent at less than half throttle.Also as part of the system I also have a "hot" block on both carbs at the opposite side of the throttle spindle area,no icing but an occasional attention getting misfire as the ice breaks away on occasions.I hope this may be of help to anyone flying in similar ,4 seasons in one day flying.

[HighWing]

Sort of felt of uncomfortable modifying the plumbing on the oil cooler system that served so well in my first Model IV, it was do the same on the new build. Controlled by a knob mounted near the throttle.

[WWhunter]

Lowell,
I decided not to install it at this time. I felt it was another point to be checked for leaks and additional weight. There's already enough crap under the cowl so why add more!!
I was actually thinking of getting a system like you show in your post. Where did you get that one?

[HighWing]

I made it. I had something similar on my first Model IV but with larger shutters.

[WWhunter]

Looks fairly easy to fabricate. What did you use for the rods? They tack welded to the shutters?

[HighWing]

I used the control rods available at RC airplane suppliers they come threaded one end and I bend to shape. The shutters are made with a curled edge on top and they are glued to the rods with a structural epoxy injected into the joint after final assembly then the rods are rotated to cover the entire rod shutter interface then positioned in the closed position for cure. I think I still have some tooling.