Trying to Clean the Gearbox… but the Oxidation Just Won’t Come Off – BMW R45 Balcony Restoration PT4

What should’ve been a quick cleaning session turned into a full-on battle with stubborn oxidation on my BMW R45 gearbox. No matter what I used — degreasers, carb cleaner, drill brushes, even Autosol — the stains just refused to move. In this episode, I dig into the gearbox, try multiple cleaning methods, and recondition a few parts along the way. New seals, fresh O-rings, drain and fill bolts — and a lot of scrubbing. The dirt comes off… but the oxidation fights back hard. 🛠️ BMW R45 Balcony Restoration – Part 4 Follow along as I restore this classic boxer piece by piece — even when the metal doesn’t make it easy. -------------------------------------------- Royalty Free Music: Bensound.com/royalty-free-music License code: TBJRKVUPTNFBKJOD Artist: : Lunar Years --------------------------------------------