Allright, thank you. It seems that removing the lid without making some kind of hole is not possible so I’ll do kind of the same and then make a new lid!
Is it normal here to use sea/saltwater directly to the water-cooled loop to the FSESC75200? Or will this corrode the cooling line too fast? I was thinking of using a small water to water heat exchanger with a closed loop to the esc, and open from the mast and out of the board. What are your solutions in sea/saltwater?
Some surprising ideas here, the two inlets/outlets are simply connected in series with a small piece of tube. No need to adapt the heatsink.
No problem with seawater directly into the heatsink but a filter or grid is adviseable in the intake line to stop stuff that could block flow to and inside the heatsink
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Although I operate in fresh water I don’t think salt corrosion is a very big concern. If you need to you can flush the line including the water channels in the vesc with fresh water at the end of a session.
I use passive cooling on my Flipsky 75200.
Water inlet is from a tube in the nose cone, up the mast, through one channel, turned around with a U shaped fitting back through the other channel and then to another tube to exit the board. I get water flow at anything more than 5km/h on an 82cm mast. I occasionally use a garden hose to flush in both directions to ensure the flow is normal and there is no minor blockage from weed or algae.
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