So what do you think caused the gurgling sound? T-Mobile, America's First Nationwide 4G Network Sent by Samsung Mobile
Bruce Giller <[email protected]> wrote: >I can't see how the fuel pump can pressurize the tank that much. The >pressure from the pump to the SPICA pump is the critical reading (15-17 >psi). On the return leg, the pressure is quite low in comparison for at >the gas station I removed that hose from FI pump to test that gas was >getting delivered to the FI pump. But it isn't hard to run the pressure >test for I've got the hoses all set up. I guess I can test both sides of >the fuel circuit while I'm at it. > >And all the gas fumes/drips are at the fuel tank - no smell or evidence of >gas in the engine compartment. And now I'm convinced that the only leak at >the tank was where the fuel return line attached to the tank. It caused >the dripping and sprayed gas onto the top of the gas tank leading me to >think that the fuel gauge sender gasket was leaking. I pushed the return >hose further onto the metal tube and tightened the FI-type hose clamp >tighter. > >Bruce > >On Sun, Jul 29, 2012 at 10:06 PM, Brian Shorey <[email protected]> wrote: > >> I'd check it again. If there is a regulator that's crapped out, or a >> clogged return line, it will probably be higher. A reading from a year ago >> tells you that you had the right pump, or a pump properly regulated, a year >> ago. It doesn't tell you what's happening now. >> >> With your indicated smell of fumes, I'd be alarmed. Like the guy with >> high blood pressure on the verge of a stroke, your car might be on the >> verge of bursting into flames. >> >> bs >> >> Sent from my iPad 4 >> >> On Jul 29, 2012, at 6:10 PM, Bruce Giller <[email protected]> wrote: >> >> > I did not check the fuel pressure on Sat. However about a year ago I >> went >> > thru the entire fuel system trying to discover why the car wouldn't start >> > (faulty microswitch in the SPICA pump to the fuel cut off solenoid - it >> was >> > always ON) and I did check the fuel pressure. It was around 17-18 psi. >> > >> > Bruce >> > >> > On Sun, Jul 29, 2012 at 1:17 PM, Brian Shorey <[email protected]> wrote: >> > >> >> Bruce, >> >> >> >> What is the actual fuel pressure? >> >> >> >> bs >> >> >> >> Sent from my iPad 4 >> >> >> >> On Jul 29, 2012, at 8:01 AM, Bruce Giller <[email protected]> wrote: >> >> >> >>> Folks, >> >>> >> >>> On Saturday I did a thorough investigation of the tank's plumbing. The >> >>> fuel pressure light would wink out in about 1-2 seconds and the pump >> >>> sounded normal (not straining). I made sure that the fuel return >> >> plumbing >> >>> in the tank was clean by blowing air thru it and hearing bubbly noises >> >> from >> >>> inside tank (the tank was 1/2 full and the end of the return line was >> >> below >> >>> surface of the fuel). The two vapor recovery connections on the tank >> >> were >> >>> clear (blew thru them), and the vapor container's three connections >> were >> >>> clear. I double checked the vapor line inlet valve in that it didn't >> >>> release pressure but only allowed air in. The vapor recovery line was >> >>> clear all the way to the engine - little volume goes thru this line >> >> that's >> >>> for sure. And I checked the exhaust system for leaks and there are >> none >> >>> nearby the tank that would cause the tank to heat up. >> >>> >> >>> I've still no idea just what is going here with this tank. >> >>> >> >>> As to the different styles of FI pumps that Alfa put on SPICA cars, Wes >> >> I. >> >>> has a great write up here: >> >>> >> http://www.wesingram.com/SPICA_Fuel_Supply_Diagnostic_Guide_Nov_2004.pdf. >> >>> My '73 GTV has the correct 2-port (one inlet, one outlet) FI pump. The >> >>> newer models had the 3 ports. >> >>> >> >>> Bruce >> >>> >> >>> On Sat, Jul 28, 2012 at 11:53 AM, John Palumbo <[email protected]> >> >> wrote: >> >>> >> >>>> I just thought of something else. If your pump only has one port >> exiting >> >>>> the top of the pump, its quite possible you have an entirely wrong >> pump >> >> for >> >>>> that particular car! I mean the newer Bosch pumps for the electronic >> >>>> injection cars have only one port exiting the top of the pump. So >> maybe >> >>>> someone swapped-out one these for the old styled original pump that >> was >> >> on >> >>>> the car, thinking that it would be more reliable. >> >>>> >> >>>> T-Mobile, America's First Nationwide 4G Network >> >>>> Sent by Samsung Mobile >> >>>> >> >>>> Bruce Giller <[email protected]> wrote: >> >>>> >> >>>>> John, >> >>>>> >> >>>>> My FI fuel pump is the new style with only two ports so there's no >> way >> >> the >> >>>>> gas can back into the tank from it. >> >>>>> >> >>>>> Bruce >> >>>>> >> >>>>> On Sat, Jul 28, 2012 at 7:18 AM, John Palumbo <[email protected]> >> >>>> wrote: >> >>>>> >> >>>>>> Just a quick thought, I would tend to think it would have something >> to >> >>>> do >> >>>>>> with the fuel delivery from the fuel pump. The fuel it would seem is >> >>>>>> getting pumped back into the tank, instead of to the pump where it >> >>>> belongs, >> >>>>>> hense you noticed it took longer for the pressure light to go out. >> >>>>>> >> >>>>>> If I can recall, the older pumps had three ports on them, one to the >> >>>> SPICA >> >>>>>> pump, one as a return to the tank, and I think the third was for >> some >> >>>>>> emmissions thing, I'm not sure. I know the the newer pumps had only >> >> two >> >>>>>> ports. >> >>>>>> >> >>>>>> So maybe if you had a spare pump, you could try installing it and >> see >> >> if >> >>>>>> it does the same thing. Perhaps there is a sort of check valve >> system, >> >>>>>> similiar to that of a diode thats gone bad, it being that alows the >> >>>> fuel to >> >>>>>> flow in only one direction, to the SPICA pump. The other thought >> would >> >>>> be >> >>>>>> to run it with the fuel cap off. But there should be no logical >> reason >> >>>> why >> >>>>>> the tank should be over pressurizing. >> >>>>>> >> >>>>>> John >> >>>>>> >> >>>>>> T-Mobile, America's First Nationwide 4G Network >> >>>>>> Sent by Samsung Mobile >> >>>>>> >> >>>>>> Bruce Giller <[email protected]> wrote: >> >>>>>> >> >>>>>>> Yesterday we (David Tallerico and I) attended a Seat Time session >> at >> >>>>>> Summit >> >>>>>>> Point track after a too-long hiatus. The weather temp wasn't hot >> but >> >>>>>>> pretty warm - mid to upper 80's or so. It is 1.5 hour drive from >> my >> >>>> house >> >>>>>>> there and we stopped in Charles Town for gas. at around 7:50 am. >> At >> >>>> the >> >>>>>>> station the car would not restart and we discovered that it was >> >> getting >> >>>>>> any >> >>>>>>> gas for the plugs were dry. The fuel pressure light went out but >> it >> >>>> took >> >>>>>>> longer than usual for it to go out; usually after running for a >> bit, >> >> it >> >>>>>>> only takes 1 second for it to wink out. I removed the return hose >> >> from >> >>>>>> the >> >>>>>>> SPICA pump and gas was pumped out with the fuel pump on. We >> 'fixed' >> >>>> the >> >>>>>>> non-starting problem with starter fluid sprayed down the throats. >> >> Off >> >>>> to >> >>>>>>> the track! >> >>>>>>> ..................... >> >>> -- >> >>> to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi >> >>> or email "unsubscribe alfa" to [email protected] >> > -- >> > to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi >> > or email "unsubscribe alfa" to [email protected] >-- >to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi >or email "unsubscribe alfa" to [email protected] -- to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi or email "unsubscribe alfa" to [email protected]
