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Permalink Reply by Jay M. Johnson 20 hours ago

I'm based in Wyoming and I;m sure it gets colder than Vancouver.

I installed an adjustable oil cooler damper that works well.  During the colder months, I put about an 1 1/2 inch wide metal tape, type used on home heat ducts, on both ends of the coolant radiator.  It still takes 10-15 minutes to warm up.  Climbing out, have to monitor the temp closely as the temp can soar...After the average daytime temps get above 50 degrees, I remove the tape.

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Permalink Reply by Matt Pope 3 hours ago

Hi Perry,

The engine in Roger's 701 is on the Rotax ring mount, and the oil cooler and muffler configurations are quite a bit different from yours. Air to the oil cooler comes from a NACA duct, and the damper is a simple butterfly valve in the duct in front of the cooler. The cabin heat comes from a muff around the muffler that always has ram air flowing into it, and flow from there into the cabin is controlled by a butterfly valve that's mounted in the firewall. Mine's the same as Roger's and I can send pictures if you want, but it's so different from your installation that I don't think it would be much help. 

I'm not sure what to suggest to get the oil temp up other than the options you've already looked at, but for cabin heat maybe something like Viking's system would work in your case (it routes engine coolant back through the firewall to a little radiator in the cabin). It does add several potential failure points to the cooling system though. 

Cheers

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