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Maintenance Tips for Rotax 912/914 Owners

The factory-authorized Rotax engine support website www.Rotax-Owner.com has recently issued a notice about revised documents and published reminders about important maintenance issues for the Rotax 912/914 engines. A revised illustrated parts catalogue for the 912 and 914 series aircraft engines is now available and can be downloaded as a PDF file here. (The first English section starts on page 10.) Rotax warns that owners of new or used engines may not be aware of the correct procedure for purging the lubrication system.

Make sure you follow the mandatory Rotax Service Instruction 912018_914020.pdf which covers the correct procedures to ensure your engine isn’t damaged by potential air trapped in the oil suction system or in the lifters themselves. There are specific directions given in this service instruction on how to purge the system of air, but more importantly it covers specific procedures to physically check that the purging procedure was successfully carried out.

Are you installing a new or overhauled 912/914 series engine into your aircraft? Are you completing a 100-hour inspection? Is your engine running a little rough at lower rpm?

It’s always good practice to perform a pneumatic synchronization of the carburetors at first engine installation or when you’ve performed maintenance to the carburetors or throttle cables.

It’s also a good idea to have the synchronization checked during your 100-hour scheduled maintenance. Synchronizing your carburetors will ensure a smooth idle at low rpm range, reducing vibration and wear and tear on the gearbox and all other engine and airframe components. Watch a preview of the 13-minute video that walks you through the step-by-step procedures for balancing your carburetors both mechanically and pneumatically.

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