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Andries

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  • Birthday 07/04/1966

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  1. I 've been reading several posts on oil consumption. I am quite fed up with my M20J, 1980 model. It was running hot, so I had it checked at an AMO, kept it for 2 weeks and 50 000 later it was "fixed"... Replaced the verna therm, changed timing on magnetos, changed the oil pressure etc etc. 100 hours later, I was still not happy. Next AMO said cylinders was cracked. Replaced all 4, another 70 000. Flew it for 15 hours to seet cylinders, balls to the wall low level, still using excessive oil. Every 2 hours more than a bottle, 1litre! Took it back, they opened it, cam was full of "pitts", whatever that means. Another 6 weeks, new cam, gears etc etc, another 85 000! To put it together at the AMO, another 25 000. So now we are at balls to the walls again, it is now 17 hours, I fill it to 6, fly 2 hours, it is on 4. This happens every 2 hours. When is the oil supposed to settle? We are at quite high altitude, 4370ft and it is hot in Kalahari desert, summers around 30 - 40 Celsius. But we also have an RV9A with a lycoming IO 320, not getting hot and barely using oil? What can cause the Mooney to use oil and run fairly hot? I have to trail the cowls to keep the temperature at about 217. I would appreciate any advice or help if someone had the same trouble with their M20J? Thanks Andries
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