14 years and 1200 hrs ago my engine was overhauled. Now they find the cam rusty and a little rust on the bottom of the cylinders. This all costs money and time to fix. So what can I do to avoid this in the future? I fly about 80-90 yrs a year and usually for at least an hour at a time. I tape my oil cooler ( on the back of #4) in trying to keep the oil temp 180 to 200. I put Camgard in the oil and change oil at 25 hrs or 4 months whichever comes first. What else can I do? Someone said to buy a device that plugs into the breather pipe? Keep the hanger at 40-50 degrees in the winter? Fly more? It just seems to me that this rust problem is a real short coming in the design of the engine or plane or something. We pilots should have a device that would regulate our oil temp to where we want it. But what device is that?
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