Hi Everyone, just completed my oil cooler shutter installation. During the winter my oil would rarely go above 170 degrees in flat cruise, even with tape over the oil and water radiators. I bought this shutter, a push-pull cable and cable lock nut (all from same website) and attached two pieces of 1/8x3/4 aluminum plate to the back of the shutter. I used four wire ties to attach the shutter to the front of the oil cooler, and I can remove it in less than a minute. Today I tested the new shutter. At full open shutter, 58 degrees outside temperature, the 912uls still ran at 170 degrees in flat cruise. At half shutter, temperature increased to 210 degrees and full shutter it got up to 238 degrees before I opened it up again. On a 100+ degree day (Prior to shutter install), my Kitfox will hit about 230 degrees when climbing at full throttle. Even though this shutter does not cover my entire cooler, I think it covers enough to keep my engine warm. I can always tape the small section of cooler not covered by the shutter if I encounter some really cold temps. When the hot weather hits next summer I can quickly remove the shutter if it seems to cause overheating. Next time I remove the shutter I will also redrill the holes so the shutter is centered on the radiator.
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