I bought the pedals pictured below several years ago when I was actively building the buggy. It sat for probably 4 or 5 years with full master cylinders and the brakes were completely bled and seemed to work great with firm pedals and good movement of the slave cylinder with the clutch pedal. The car was never driven, didn't even have an engine or wiring. I noticed brake fluid leaking a couple years ago while it was stored and just sitting in the garage. I'm back to working on the project and I just pulled the pedal assemblies off to look at what's going on. They are destroyed and I have no idea why. It appears that the brake fluid ate at everything. I know brake fluid draws moisture and can cause some nasty corrosion but this is odd. It's like rust, scum and corrosion is all over everything. I tried to seal the top cap seal on one cylinder that appeared to be leaking a bit there but it starting leaking at the plunger seal like the other two. They all three leak and the plungers are even scored. It even looks like it was eating at the rubber. They were clean when they were installed so no idea on the scoring. They are a knock-off CNC, they are either Racetrim or Latest Rage, can't remember which. Any suggestions? I'll probably buy some rebuild kits but do you think the brake fluid ate at everything or just moisture that got in with the leaks? I used Prestone DOT3 fluid, nothing fancy or special. Here are some pics of the clutch master cylinder internals and the external master cylinders. To clean these up they'll require some acid or blasting. It's nasty.
