Thanks, Tom....about the fluid....I was unaware it was leaking out, and not long ago I noticed a slight deterioration in brake function so I pulled the cap and found the large reservoir completely dry. I filled it, then realized through more frequent checking that it was leaking out somewhere, so I got a turkey baster and emptied the old fluid, wiped out the sediment from the reservoir, and put in new brake fluid. It gets cloudy like that pretty quickly....I don't think it is humidity, I think it is rust from the inside of the reservoir that is staining it. I did empty the smaller reservoir once but have not paid the attention to it that I do to the larger reservoir. I suspect that a flush of the system will reveal that there is significant air in the lines...and, if as I suspect, the larger reservoir supplies the front brakes, that might be the reason that the rotor looks the way it does. I can lock up the front brakes, in fact do so frequently as I am backing out of the garage as the driveway slopes down at a good angle and the weight is transferred to the back wheels.
I am pretty comfortable with brake work, have done my own on my Fords and Hondas for years, just don't understand the theories behind the mechanicals. I hope to reach Wilwood today with the numbers I got off the calipers and find out about rebuild kits...supposedly the rebuild involves a new O-ring on the pistons and little more, we'll see. I agree that the front brakes might not be working at maximum efficiency, the verbal history on the car indicates it was built in 1994 and these would be the brakes used in the build as there is slightly over 8K miles on the odometer. Almost twenty years since it has been built....and no brake work since then....sounds like it is time! I can replace the MC and rebuild the calipers in a weekend, that's doable
For now the MC will get replaced, the calipers rebuilt, and the system flushed, but once the car is up on jackstands for the winter, a totally different braking system might well be in its future, a dual cylinder one like Bob C pictured in his first reply.
Thanks to Tommy for spending time with me on the phone last night, I now understand better the impact of changing the bore size of the MC....will replace the MC with a similar size bore (or, pehaps, smaller as recommended by Jerry) rather than increasing the bore size. Sometimes things involved with hydraulic theory seem counter-intuitive!
Cheers!
Dugly
