Announcement

Collapse
No announcement yet.

Idle/Timing problem

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • #46
    my fuel line isn't pressurized when i take it off of the regulator, i have a brand new walboro 255 in tank fuel pump.. shouldn't the system stay pressurized for starting?

    the engine wont start without starting fluid and then it dies after the fluid is burnt up. the voltage at my fuel pump with key in start position is 11.6v and with the clutch pushed in and cranking the voltage drops to around 9.4v what could cause this?
    -93' Festiva L (B6T swap in progress)
    -92' XR2 Capri (Parts car)

    Comment


    • #47
      Originally posted by festivBS View Post
      my fuel line isn't pressurized when i take it off of the regulator, i have a brand new walboro 255 in tank fuel pump.. shouldn't the system stay pressurized for starting?

      the engine wont start without starting fluid and then it dies after the fluid is burnt up. the voltage at my fuel pump with key in start position is 11.6v and with the clutch pushed in and cranking the voltage drops to around 9.4v what could cause this?
      Your fuel system should be staying pressurized...If your connection to the pump isnt good. You could be leaking fuel right there in the tank and not know it.(This would explain why your not staying pressurized-) I havent had a cause to check ours yet.But I'm going to step out on a limb and say your fuel systems should be holding pressure for a very long time.Most injected systems are this way.

      All coils are designed to operate at @ 9.5 volts.They use a resistor that brings the voltage down to this voltage.So you are okay,they do this cuz when cranking so much current is going to the starter motor that voltage drops.Ever watch someones headlites dim when they start their car? This is why.
      Stop trying to start your car with starting fluid now.You know its not spark related.Its fuel related, so you dont need starting fluid.It will dry up the oil around the piston rings.And therefore score the cyl walls. (its has a very drying effect)
      You dont mention Fuel pressure. Or did I miss that? You need to know FP @ all 3 stages. Running (which you cant do) Kranking which you can do. And after you stop cranking,which also you can do.
      Sooooooo if yoy got low psi at kranking(which I'm assuming) start looking at what would cause that symptom. FP regulator,Fuel Pump or Internal leak in the tank. Maybe this helps.... Good luck, Thomas
      Some people like to read fiction,I prefer to read repair manuals. Weird I know-
      Henry Ford: "Failure is the opportunity to begin again more intelligently"
      Fuseable Link Distribution Block repair link

      Comment


      • #48
        Yeah that was what i planned on doing next, i just need to get ahold of a fuel pressure gauge. is at the fuel rail where i want to be measuring the FP?
        -93' Festiva L (B6T swap in progress)
        -92' XR2 Capri (Parts car)

        Comment


        • #49
          As far as the timing goes mine is set at that black little mark. I'm not sure why it hits right there but I have been running it like that for a few months. It must be a setting in the computer or something. I tried grounding sti input also with no result. If your running a walboro all you need is power and ground put it on a temp. switch.

          I know it can't be caused by wrong timing cause I have timed it in the past without any problems hitting on the 10-12 degree mark. Just don't know what has changed since and couldn't figure it out just know where it runs best and it pushes 12 psi fine.
          Last edited by Flyin4stroke; 07-23-2011, 04:15 PM.
          1988 Ford Festiva "Sonic" BPT g25mr MS2 standalone ecu, FOTY '11, Best Beater FMV, Fan Favorite FMVI

          1989 Ford Mustang GT 5.slow

          1996 Ford F-150

          Comment


          • #50
            awesome! thank you for that assurance it feels good to know that.. now to get it running haha
            -93' Festiva L (B6T swap in progress)
            -92' XR2 Capri (Parts car)

            Comment


            • #51
              Does this problem sound like a fuel pressure regulator? i think my regulator is stuck open and not pressurizing the rail and letting the gas return to the tank so there is no pressure in the system.

              how simple is an oem fpr replacement?
              -93' Festiva L (B6T swap in progress)
              -92' XR2 Capri (Parts car)

              Comment


              • #52
                Judging by your photos, your cams a out of synch.... The marks on the cam gears should line up with the stamped tabs on the back plate, when the mark on the CRANK GEAR is lined up with its own mark on the oil pump. The mark on your pulley is for ignition timing, not cam timing. I've been in a similar situation, and what I've learned is this: always start with the basics... Make sure cam timing is right, then ignition timing, and then you can worry about fuel and electronics.
                The left lane? Are you crazy!!! I never drive in the left lane...It's full of freaks driving the wrong way and charging right at you!!!

                Comment


                • #53
                  that picture was past tdc that's just where it was when i took the picture, not TDC. The motor used to start and would idle but now will only start off of starting fluid. thus meaning i have a fuel problem
                  -93' Festiva L (B6T swap in progress)
                  -92' XR2 Capri (Parts car)

                  Comment


                  • #54
                    Undo the fuel line from the rail and turn the car on check for fuel.
                    1988 Ford Festiva "Sonic" BPT g25mr MS2 standalone ecu, FOTY '11, Best Beater FMV, Fan Favorite FMVI

                    1989 Ford Mustang GT 5.slow

                    1996 Ford F-150

                    Comment


                    • #55
                      I've done that, my fuel pump flows great but i think my diaphram is stuck inside my fpr so its just draining to the return and not pressurizing the fuel rail so i ordered a new fpr.
                      -93' Festiva L (B6T swap in progress)
                      -92' XR2 Capri (Parts car)

                      Comment


                      • #56
                        New FPR installed
                        RESULTS- same problems, still won't start

                        during removal i noticed both fuel lines (in-going and return) had lots of pressure in them

                        which now makes me think that injectors are definitely the issue. Picking up my friend's either 460 or 550cc injectors soon (not sure which he wants to give up yet) and gonna see how they fit up and if they solve my issue
                        -93' Festiva L (B6T swap in progress)
                        -92' XR2 Capri (Parts car)

                        Comment


                        • #57
                          Can you give us any background info on your engine? Like is it from a junkyard, or a friend's car or previously working car? Has it been tempered with? Some info could help. Your situation is a lot familiar to me... I bought my BP from a junkyard, thinking they just pulled it from the car sold it to me... But it wouldn't run properly; I replaced almost everything, going in the same order as you did...I eventually backtracked, and tried the theory that maybe the JY played with it, and I was right. Turns out they messed up the cam timing deliberatly, because since they give a warranty on the engine on the condition that you fit a new timing belt prior to dropping the engine in, you have to adjust the cam timing. So since you're doing that, might as well put a new t-belt in; at least that's their theory. I spent a lost of cash before finding the problem because I thrusted somebody else. So when I say " get back to basics" I mean that you should start from square one and double-check everything yourself and go from there; that way you'll be absolutely sure of what's working and what is not. Just trying to help you from my own bad luck haha!!!
                          The left lane? Are you crazy!!! I never drive in the left lane...It's full of freaks driving the wrong way and charging right at you!!!

                          Comment


                          • #58
                            I appreciate the help! Some background info:
                            bought the 92 capri xr2 with 106xxx miles when i first got the car, the stock turbo seals were blown so lots of oil was in the intake, but it did run. Next the motor was removed and i stripped everything off of it to clean/ inspect everything. Internals looked fine so i basically just replaced all the gaskets that could be replaced. New water pump was installed along with new timing belt and tensioner. put a different turbo on the car too but thats about all the tempering we have done to it. (motor wise)
                            -93' Festiva L (B6T swap in progress)
                            -92' XR2 Capri (Parts car)

                            Comment


                            • #59
                              I see your looking for injectors is that what you narrowed it down too?
                              1988 Ford Festiva "Sonic" BPT g25mr MS2 standalone ecu, FOTY '11, Best Beater FMV, Fan Favorite FMVI

                              1989 Ford Mustang GT 5.slow

                              1996 Ford F-150

                              Comment


                              • #60
                                Originally posted by Flyin4stroke View Post
                                I see your looking for injectors is that what you narrowed it down too?
                                yeah, i need new ones anyways so gonna see if that fixes the problem. gonna post results up here
                                -93' Festiva L (B6T swap in progress)
                                -92' XR2 Capri (Parts car)

                                Comment

                                Working...
                                X