I have an older style ST60 wind
transducer. The speed cups never did spin since I've owned the boat and the direction vane is starting to get sticky. I pulled it down, not fun as I have a problem with heights. I found the bearings are rusty. I called Raymarine
and they don't sell the "pods" anymore so I can either soak them in wd-40 and keep some oil
on them or buy a new transducer. I found the new transducer is cheaper from Defender than direct but it's still $280.00. I pulled the pods out and have soaked them in wd-40 and brushed the surface rust off of the "stainless" bearings. I even locked the center shaft in a drill and ran at high speed for sometime to loosen it up. The bearings are pressed in a way that replacement is not an option.
The question is: what can I use to "keep some oil
on it"? Would breakfree, or silicone, or some other lubricant work best long term?