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Old 09-12-2023, 05:25 PM
Amadeus's Avatar
Amadeus Amadeus is offline
Join Date: Nov 2020
Location: Basalt, CO/Lexington, KY
Posts: 316
Default Dynamic Balancing Rotax 912

I've had the same leaking radiator issue as many others with the Rotax 912iS and am trying to eliminate any and all potential of which is possible propeller vibration.

I thought I had a location lined up to balance the prop on my -12iS but then he just backed out of performing the dynamic balance over concerns that the engine and the propeller turn at different speeds and that because of the gearbox he wouldn't have holes on the flywheel to place balancing weight.

Has anyone actually had their propeller dynamic balanced on the Rotax 912 powerplant?

If so, where were the weights placed?

My thought is that a hole could be drilled in the spinner backplate and a bolt with washers and a lock nut be installed for the balancing weight in the location identified by the dynamic balancer. Is this method not a possibility?

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