Ed Anderson wrote:

Jerry, I fly without a thermostat and do not have cowl flaps.  But as Paul
suggested the VW thermostat bellows would work.  I actually acquired two but
never got around to cowl flaps as I had more serious problems to work for a
while.  The only time my temps are below 180F is on colder days and if
letting down with the power pulled back.  The coolant will sometimes drop to
140F, oil generally no lower than 160F.

"Perry J. Mick" wrote:

That 160F is the oil cooler thermostat working.  Idling on the ground oil temp
will come up to 160F fairly fast and then sit there as the oil cooler starts to
work.
During descent oil temp can drop to 160F and then sit there.  I think that
[oil] thermostat
is also a good idea, keeps your oil from getting too cool, if that's a problem?
Maybe helps keep moisture out of the oil.
--
Perry Mick
Duckt N7XR
http://www.ductedfan.com

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