I was speaking with Dave Hodges ~ ayrwoof who gave me a tip regarding leaking power steering control valves. It appears that Ford was having the same issue back in the 50's and 60's. According to someone he spoke to who worked at an Edsel/Lincoln-Mercury dealership the fix was to soak the seals in DOT3 brake fluid for 15-20 minutes before installing and install them still wet. After putting the valve together fill with Type F transmission fluid. He says he did this quite a few years ago on his '60 and his valve is still leak free. He also indicated that he got new seals from The O-Ring Store LLC: https://www.theoringstore.com/ The part number for the larger seal is 6226-07-E70. He did not have the part number for the smaller seal but they list many different Ford seal kits so it's best to give them a call.
John
John
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