Rotax overheating after maintenance

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soarer20
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Rotax overheating after maintenance

Post by soarer20 »

912 f3 81hp overheating in cruise after maintenance. Seemed to be running normally initially but 45 min into the flight was noticing the temp trending higher.

75% power
2,000 ft msl
MP 25.5
RPM 22
Oil temp 250-260
Cht 250+
Oat 75

The muffler was replaced with an acorn reman/ new one.
Carbs rebuilt, new fuel pump and fuel lines. Oil and coolant are between the marks. I pulled the cowl off and didn’t notice anything out of the ordinary. There was a small oil leak on the prop governor gasket and another small oil leak on the oil sender hose fitting.

Typically oil temp is around 230 deg.

Any ideas?
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Steve
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Re: Rotax overheating after maintenance

Post by Steve »

Not familiar with the Rotax engine, but since you had work done on the carbs, could your mixture be set up too lean?
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soarer20
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Re: Rotax overheating after maintenance

Post by soarer20 »

It’s possible the needle clip is in the wrong position.

Has anyone heard of a muffler causing overheating?
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