Crankshaft Oil Seal Leaks

If you're talking about the Torx head plug on the back I have seen a few plugs that have come lose and leaked oil. Another mechanic I know has seen a few too. Just a add a drop or two of Loctite 243 (med blue) on the threads.and torque it back down.

Thanks. I did not know that this plug can be adjusted. Do you know which size of Torx should I get. (I have to buy one ...) Thanks !!!

I had the same, from new, finally i had to change the seal?

Maximo

The oil leak is most likely originating from the seal, not the bolt at the end of the crankshaft. It's essential to note that Rotax does not provide the torque value for that bolt in any manuals other than the Overhaul manual. If you remove this bolt, it cannot be properly re-torqued without contacting your local distributor. They can supply you with the torque value, as we are prohibited from disclosing this information due to Rotax's stringent rules concerning the release of information from the overhaul manual.

Considering the likelihood of the issue being related to the seal on the ignition housing, it would be prudent to reach out to your local Rotax distributor or service center/repair station. You can inquire about the possibility of warranty coverage, depending on your engine's age, or request them to replace the seal for you. Please be aware that replacing this seal can be a challenging task, involving the removal of the ignition housing. In many installations, it may even require the engine to be removed from the aircraft, depending on the available workspace behind the engine.

You can find your local Rotax distributor, service, or repair center by clicking on the following link: https://dealerlocator.flyrotax.com/

During Flight of 31/12/2023 we had a slightly strange serious breakdown, the rear screw of the engine crankshaft has loosened with a significant oil loss.  I attach photos.  What is the cause??  What procedure must be applied for its correct repair???  Happy new year and thank you very much