Channeling Rasanna Danna, "Never mind!" For all the excitement that I caused the real culprit was far more mundane. After conducting a few more tests to determine just where the leak was coming from, I eliminated the hard line 'nuts' and narrowed the threaded output connectors to the one nearest the radiator.
But since everyone said that the threaded output connectors rarely leak, I thought "where else could the gas come from." The fuel return hose connector is right by the front threaded output connector so I tightened that down a bit more. This time when I pressurized the fuel circuit, I could see a tiny jet of gas spurt out and up from the copper sealing washer. When I examined the washer, it was very rough from all the times it had been torqued down (I was removing the return connector to adjust the fuel pressure). A new washer solved the problem - now the pump is very dry! The old washer leaked so much that it was washing up and over the fuel pump to make it appear that it was coming from up on top. And the fuel pressure is now 10 psi (on recommendation from Wes). A happy ending for everyone!!! Bruce On Sat, Aug 18, 2012 at 5:51 PM, Bruce Giller <[email protected]> wrote: > > Whilst was adjusting the fuel pressure (with a pressure gauge on a > T-fitting described in Wes I's SPICA booklet) in the GTV to be between 8-10 > psi, I noticed that gas was running down the right side of the pump. The > engine was off and the fuel pump was the only electrical item that was ON. > Strangely, I couldn't smell the gas but saw where it was dripping down to > the ground off of the pump. > > I thought that the threaded barrels that hold the hard lines to the pump > were loose, so I re-torqued each one (15 ft lb) but it still leaked. The > gas was running out from under the small bracket that holds the nuts in > place which in turn hold the treaded output connections to the pump. I > think that only the threaded connection closest to the radiator is the one > that is leaking. I've never seen this before, the pump has always run > without any gas leaks. > > I've never messed with these threaded output connections but I gather that > there must be a seal of some sort underneath each one. Do you think that > retorquing the threaded output would fix it ? Is this something that I > can.should do ? Or does this indicate that there is something wrong deeper > inside the pump? I've already sent a note to Wes about this today. > > Obviously, I"m not going to continue trying to adjust the fuel pressure > until this is resolved since the leak affects the reading. > > Thanks, > > Bruce > > I've got another SPICA pump and I'm going to have a look at the threaded > output connector and see what is below it. -- to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi or email "unsubscribe alfa" to [email protected]
