Originally Posted by miner
I used PB Blaster and Brake cleaner, but neither was very good at getting anything except grease. I scrubbed at the corrosion and really crusty stuff for like 2 hours until I gave up on chemicals and just used fine grit sand paper. That got things slick and shiny and went quick.
The numbers on the leaves, for the MB locks, are on one side right next to the little tabs that stick out. I didn't notice them until I really started to get the leaves clean.
I have done too much rust removal from things like cast iron machine tables and many other parts. I have found that for flat surfaces and even round ones a single edge razor blade will actually scrape off the rust without distorting the surface like sandpaper or a stone can. Lube the surface up with just about any oil then use the razor blade to scrape the rust off. If it is really bad I will coat with Marvel Mystery and leave for a couple of days so it will soften up. Once I start scraping, I just use mineral spirits. Also, IMHO scraping takes less time than sandpaper if there is a buildup of rust on a part.
Thanks for the post. My wifes 1985TD hatch lock would not accept the key. I was amazed how much crud was in there. Gave it a good cleaning and lubed with marine grease and it works like a charm now.