I have scanned some pages of the 1967 Mercury vacum shop manual, I hope it will help out fellow cougar owners.
Send me an email if you want the scans, I tried to post them but can not put mulitiple scans on one post, or I am doing something wrong.
Mike
Edmonton, Alberta
1967 Cougar XR7 GT
Helpful! And here is the picture of the actual used hoses all hooked up. Keep in mind this is for the early dual nipple type storage tank only. Most were single nipple and many of the early units were retrofitted with campaign parts as it was not a good system. Here is what the late system looks like for a 1967 Mercury Cougar.