wrote: I suspect that you temp sensor location may be the problem rather than calibration. If its outside the main flow channel, then its hard to tell just how close or far off of the main flow temps it may be registering. On the other hand if your coolant engine outlet temp is measuring only 161F (and assuming that is somewhere near the actual temp) then you radiator is clearly doing its job by cooling down the coolant before it enters the engine. When I am cruising at 5400 rpm my coolant temps range from 155F-175F depending on OAT. This is temp out of the engine. Since your temp is in the same ball park, it appears your radiator is doing a good job especially given the 90F OAT. Ed Snip --NextPart_Webmail_9m3u9jl4l_29038_1191162321_0 Content-Type: text/html Content-Transfer-Encoding: 8bit

Mark, ED ,Group,

Following flight tests and debugging closely.........Great info for those

of us that will follw and have some of the same problems eventually.......

--
Kelly Troyer
"Dyke Delta"_13B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifold

-------------- Original message from "Mark Steitle" <msteitle@gmail.com>: --------------

Ed,

Yes, I'm happy with the coolant temps. I wish the oil would allow a little more margin, but 190* @ 5200 is ok for 90* OAT. I'll be gong out to the airport in a while and I'll check the calibration on the coolant sensors.

Mark

Overcast with 40% chance of rain today. :-(

On 9/30/07, Ed Anderson <eanderson@carolina.rr.com> wrote:

I suspect that you temp sensor location may be the problem rather than calibration. If its outside the main flow channel, then its hard to tell just how close or far off of the main flow temps it may be registering.

On the other hand if your coolant engine outlet temp is measuring only 161F (and assuming that is somewhere near the actual temp) then you radiator is clearly doing its job by cooling down the coolant before it enters the engine. When I am cruising at 5400 rpm my coolant temps range from 155F-175F depending on OAT. This is temp out of the engine. Since your temp is in the same ball park, it appears your radiator is doing a good job especially given the 90F OAT.

Ed

Snip

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