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Anyone here had much experiance with the Rotax 912
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MVB
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Joined: June 21, 2023
Posts: 76
Location: Sydney, Australia
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PostPosted: Wed Nov 05, 2025 4:35 am    Post subject: Anyone here had much experiance with the Rotax 912 Reply with quote

I Found one for sale cheap. I assume it’s too far gone for aircraft certification.

Anyway anyone know how hard it is to remove the Reduction gearing & replace it with a Type 1 or Type 4 flywheel, at either end?

They have alloy Nikie Barrels, a dry sump & rev to 5.8K (hence the reduction gearing) & come with fully closed deck watercooled heads (but each head’s cooling system has a capacity of just 1.5 litres) with air cooled barrels & air cooled crankcase.

Anyway does anyone here know much about them?
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Nitramrebrab72
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PostPosted: Wed Nov 05, 2025 6:45 am    Post subject: Re: Anyone here had much experiance with the Rotax 912 Reply with quote

Good for making a light weight beetle...
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MVB
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PostPosted: Wed Nov 05, 2025 7:21 am    Post subject: Re: Anyone here had much experiance with the Rotax 912 Reply with quote

I don’t know if the heads are shrunk screwed, like Generation 4 Jabaroo heads are.
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