1970 Opel Gt - Purchased July 1972 - Chartreuse - restored - 3000 miles as of 02-16, 2021 -
I have been reading about the rebuilding of the brake calipers and wanted to get some opinions based on the information below.
- During the beginning of my restoration back in the late 90's I know that I replaced the rubber seals around the outside of the caliper pistons, if memory serves on both sides/both pistons, however I did not remove the pistons. So the car has 21 or so years on it and around 3000 miles since then - and has always been in a garage, at least since 1983. The car has also not been exposed to salt being a southern GT-salt is used on the roads now but not back in the 70's when it was a daily driver
- The brakes work fine but the car is 50 years old and as stated in the many threads on the subject brakes are pretty important so- based on what I have read I am wondering if I need to do anything else to the calipers besides the seal replacement
- Can the pistons be lightly sprayed with WD 40 or do they need to be
- I do not have any leaks and again the calipers appear to work really well
- I also replaced the rubber brake lines that have been discussed at length and again that was in the late 90's. What is the life expectancy of these lines based on the conditions listed above - should I be replacing them at this point.
- New Master Cylinder and larger brake booster this year and pads front and back only 3000 miles - no leaks