Mailing List flyrotary@lancaironline.net Message #26046
From: Bob White <bob@bob-white.com>
Subject: Re: [FlyRotary] Re: Oil Cooler Connections [Thermostat]
Date: Sat, 20 Aug 2005 18:33:13 -0600
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Hi Ralph,

I think the thermostat in the oil cooler works differenty than the
typical thermostat in an auto cooling system.  In the cooling system,
it blocks most of the flow until the water heats up.  This wouldn't be
good for the oil, so here the thermostat is open to allow flow to
bypass the oil cooler but still maintain full flow, then closes to
force the oil to flow thru the oil cooler.  At least, that's how I
understand it.

Bob W.

On Sat, 20 Aug 2005 19:02:13 -0500
"Ralph Reed" <ralph_reed@sil.org> wrote:

In cars the thermostat when cold is closed and the water circulates in the block for for quicker warm up. It warms up and starts letting the water out to the radiator. when the whole block is more than (usually 180 degrees) it stays open.  I think having the thermostat in the wrong place would complicate things and I am not at all convinced that you need one at all. KISS. I would want more than a few seconds of run time on the engine before I headed up into the wild blue yonder.

It is also possible to get the thermostat in upside down (what looks right is not necessarly right) and crack the exhaust manifold at least on a car.

This is not like sitting in your driveway late for work wanting the car to warm up quickly to beat the clock, this is your life!

Ralph


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