I have a 71 R75/5 and I was wondering what is the coating they used on the steel parts and the nuts and bolts? I'm guessing it is not paint but a plating of some kind. When restoring what coating should I use?
Jim from Pasadena
Hardware was quoted with cadmium back in the day. Now phosphated zinc, I believe. I've read that the two types of coatings affect torque values.