------------------ Hi all, This question is for anyone who has flown behind the 0-200, did your aircraft have an oil cooler? For anyone that perhaps changed their system, either to or from, did you notice any significant difference? I currently own a Davis DA-2, and it has an oil cooler, mounted to the side of the lower cowling next to some vents. I would like to install an oil filter system, which would mean removing the oil cooler to mount the oil filter assembly. I have only flown it in the fall and over the winter, the temperatures were cool, maybe even a little too cool. But I haven't flown in the heat of summer so i do not know if the extra cooling is necessary. It appears the oil cooler was originally attached to the rear of the cylinder baffles, then moved at some point to its current position. I know the plane was originally built in Florida, but most of the year we aren't as warm here. (though last weekend we broke hi temp records at a "blistering" pace, 103 degrees in May in Nebraska, yikes). Please share thoughts/opinions/experiences... Thanks! TJ -----------------------
While the O-200 was designed by Continental to accommodate an oil cooler, very few applications ever required it. The most popular plane to use an O-200 was the Cessna 150, and it did not use an oil cooler. There was an opening just below the spinner to supply air, and a baffle under the engine to direct that air along the bottom of the engine and onto the oil tank. That was generally sufficient to keep the engine within spec for the oil temp. On my KR, I didn't use the lower baffling or provide the inlet hole, but instead built a standard air box inside the carb air inlet area with sufficient room to spill air over the sides of the air box to cool the oil tank. Outside of that, my engine is very tightly cowled. Worst case I've seen in New Mexico with extended summer time climbs to altitudes >12,000', I saw oil temps top out at up to 225°, and that is while using Emags that are pushing the engine timing up to 39° BTDC. That is still in the green for the O-200, and about as extreme as I could possibly do to this engine. My typical summertime oil temps usually top out at 210° on climb, then drop back to 200° during cruise. While I know a couple of the newer KRs out there are using oil coolers on their O-200s, I suspect they were installed more as an abundance of caution than necessity. After 1200 hrs operation in my KR, I don't see the need to carry the weight of an oil cooler for an O-200 on a KR. If the oil temps are running high, a little air supplied to the front of the oil tank should address the issue. -Jeff Scott Cherokee Village, AR _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org
