Bruce, Don't use teflon tape or pipe dope. Bits of tape will clog most injectors and pipe dope just has to dissolve in the ethanol/gas crap we get for fuel these days. I know I have used antiseize on metal pipe flare nuts at some point in my life to keep the threats from seizing or galling. Thinking back on it: I wouldn't do it again. That nylon looking o-ring and a clean square fitting must be the key. I hope Wes knows. I can tell you that if you can torque it to spec and it still leaks, torquing it more will make it worse. Most times I see this, the outer fitting is split or cracked. From over tightening. Regards, Sc ott Shure85 GTV-6Ellicott City, MD Date: Sun, 19 Aug 2012 13:19:34 -0400 From: Bruce Giller <[email protected]> Subject: [alfa] Re: Yet another fuel problem !!
I dragged out my spare SPICA pump and set about investigating the threaded connections - so much easier when the pump is on the work table than in the car! It was a snap to remove the nut-retainer rings (one for each threaded output connection) and a 14 mm deep socket removed all the threaded connections from the pump. The threaded connector (are about 2" long) screws in about 3/4" into the pump body which makes for a deep hole and less likely that the connector would unscrew itself. The nut-retainer rings are to prevent them from doing just that. The center of the hole is occupied by a removable 'jet' and there is a spring inside the threaded connector. Using a flashlight, I could see that there is a nylon-like O-ring at the base of the hole; the seal for the threaded connector. I tried all my variously shaped picks (about 8) but none could get underneath the seal to lift it out. Could be that it must be destroyed upon removal or I didn't have the Magic Tool. But nylon is pretty tough so I don't think it would just fail on me like it did. There seemed to be leftover threads of a sealing substance (plumber's teflon tape or pipe dope, perhaps) on the threads of the connector when I removed them. I didn't see much of it and there wasn't any in the hole on the pump. I've no idea if coating the thread with a sealer is correct or not. Bruce -- to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi or email "unsubscribe alfa" to [email protected]
