That's an oddball fitting- - - -it's supposed to crimp itself down on the oil line the first time it's tightened into the oil connector, and stay there. It's supposed to have a little over 1/8" of the oil line sticking through the nut, into the oil connector. Can the line slide all the way through the nut? If not, someone has probably broken the tip off the line which would allow it to slide out. Those nuts are still available from a few oldtime parts stores, and possibly some of the resto-ripoff specialty parts places. Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!