Oil thermostat on Rotax 912

[GuppyWN]

Doug(Floog) and I have the same engine/prop combo and did a test a couple of weeks ago...

What was the ambient temp?

[kmach]

What make and model of oil thermostats are you guys using ?

Are you guys using a coolant thermostat as well?

I use the thermobob coolant thermostat, it also helps with engine warmup and it keeps temps up inflight, very nicely .

[Slyfox]

not sure about the 10% still going through the oil cooler, could be I guess. I got mine from lockwood many moons ago. like maybe 14 years. Now for the coolant, nope. reason I don't is because I run my heat off the cooler. a bit of redneck in me. I run a plastic funnel off the back of the cooler and run scat hose off that into the inside and point it at my feet. free heat, than I cover the cooler with cardboard and a couple pocky ties from an automotive transmission cooler setup. works great, keeps my feet warm. no weight and no complexity with taping into the water.

[Dorsal]

I run both the oil thermostat from Lockwood and coolant thermostat, I think the engine warms up quicker but I know temps are very stable and predictable across a wide rage of flight conditions.

[WWhunter]

I already have the coolant Thermostat and will install the oil thermostat since it is already bought and paid for. The coolant thermostat I bought a few years ago through Hal Stockman. The oil thermostat I bought while at Oshkosh last year. I purchased it from Lockwood and it was $55.95. Be advised they do NOT include the hose fittings, even though the paper (instructions) state that they are included. It is just the thermostat and one must source their own fittings and clamps. They are just 1/2" brass hose barbs which can be purchased at any hardware type place. Or go custom or aviation quality and get some nice blue anodized fitting from JEGS or SUMMIT.

[Dusty]

Unfortunatly the belly radiator has to stay and get plenty of airflow. It Has to get rid of of not only cylinder head heat but also oil/crankcase heat. The heat exchanger I used is one from the wine industry and has more than ample strength and flow(it is in the suction side of the pump,and the coolant pressure is only what the Rotax/BMW radiator cap will support) laminova do a better unit,but at a not so great price.