MrMoparMan has come up with perhaps an even easier "coolant delete" method, if you're willing to forgo the flyover tube coolant feed to the top of the gearbox heat exchanger. It's four pieces, all custom, but there's a rumor that he'll sell them. Its chief advantage is that (on the Model S) it doesn't required dropping the entire rear subframe and extracting the LDU, in order to do it this way. And it requires only some dexterity and a hacksaw (no machining):
Custom parts required:
- Welded: Alum hose barb welded to a plate: an adapter to route coolant to the stator (and inverter);
- 3D-printed: A rectangular plastic cap to keep debris from traveling up the old coolant manifold and to the rotor;
- 3D-printed: two block-offs for both ends of the flyover tube, which is removed.
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If you have a Model S/X and want to reduce your labor costs substantially, and are willing to forgo coolant flow to the gearbox heat exchanger, this is a very easy way to prevent future rotor seal leaks.
If you've already got coolant in your stator cavity, you'll have to pull the LDU anyway, so I believe one of the other solutions would be a better call (IMO).
