1997 GTX off season rebuild start.

[AquaEye]

Satisfied with oil injection study so on to the next endeavor.
This concerns the lubrication of the RV gear cavity. Lurked around a few of the Rotax/aviation forums & also called a few maintenance shops that specialized in Rotax engines in the aviation applications. There was one particular "mod" I'm going to explore but there's a disconnect that I couldn't pin down. The circulation of oil in the RV gear circuit.
Is there any circulation occurring @ all in the circuit, be it negligible but movement none the less?

 

[burtshaver2021]

Satisfied with oil injection study so on to the next endeavor.
This concerns the lubrication of the RV gear cavity. Lurked around a few of the Rotax/aviation forums & also called a few maintenance shops that specialized in Rotax engines in the aviation applications. There was one particular "mod" I'm going to explore but there's a disconnect that I couldn't pin down. The circulation of oil in the RV gear circuit.
Is there any circulation occurring @ all in the circuit, be it negligible but movement none the less?

No circulation in the RV

 

[AquaEye]

No circulation in the RV

I'll start there. Knowing this, the "flyboys" workaround is going closed loop, some with a small coolant M/C tank dedicated to RV oil (same injected oil) so as to monitor level. A regimented pm involves gently purging the oil & sent out to be analyzed for metal particulates. Granted this might seem extreme but their 2K feet in the air = Ouch. Dead pilots can't rebuild.
Myself, "leaning" towards closed loop with small vented tank & a more laxed pm regiment. Placement of tank height within hull in relation to oil cavity level will require some thought = ouch..
Here's a couple few of pics of anxiety's belayed. No leaks @ grommet after 16 hrs.
Thanks for the info.