I searched a lot need help with No Start

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  • vespam5
    Advanced Member
    • Feb 2008
    • 147

    #1

    I searched a lot need help with No Start

    Hi all, I'd really appreciate some help with my GF's 1989 12/88 325i Automatic sedan. I searched around the forums for about a day.

    I had the head off this weekend to change a broken rocker arm. Even with the broken rocker arm, the car did make it home a few miles even with the broken rocker a couple months ago. It has sat for about 2-3 months and I finally got to it this past weekend.

    So I bought a new rocker arm, head gasket, head bolts, wires, cap, rotor, new belt, plugs, etc. Figured I'd give it a tune while I did the repair.

    It's all back in place installed, valves adjusted to .010" but the car simply will not start.

    Out of fear I rechecked the cam/crank timing, but it is perfectly timed to the marks. I also hand spun the engine about 4-5 times once I installed the belt.

    I checked:
    Fuel pump, runs and has good pressure
    Crank Position Sensor, even swapped it with a junk yard one and checked resistance (540 oHMS) across the two outer pins.
    I have Spark, I checked it by pulling a plug and grounding it to the head.
    Compression isn't great, becuase it's a high mileage car, but it's about 110 psi across 1-6

    All the plugs are connected and triple checked, fuel lines are correct.

    At first plugs got wet, since I left the old plugs in initially.

    Now that I put the new plugs in they stay dry, even after long cranking sessions, I have no way to confirm injectors are actually firing.

    Please help, I'm exhausted. I don't have a Bentley Manual for this car, THANKS!!
    "you name it I've owned it, 1600,2002,e28,e30,e32,e34(m5),e36,e46(m3)"
  • jlevie
    R3V OG
    • Nov 2006
    • 13530

    #2
    If the cam timing is correct and you have spark, the likely culprits would be a fuel delivery issue or a large intake leak. Since you've had the head off, either is possible. Make sure that you don't have a large intake leak and then move to the fuel system A problem with C191 (has it been re-connected?) or with fuel pressure (what is the pressure at the rail?) could cause this.
    The car makes it possible, but the driver makes it happen.
    Jim Levie, Huntsville, AL

    Comment

    • vespam5
      Advanced Member
      • Feb 2008
      • 147

      #3
      Thanks for the input, I don't have any intake leaks. What is C191?
      "you name it I've owned it, 1600,2002,e28,e30,e32,e34(m5),e36,e46(m3)"

      Comment

      • bimmerboy12
        E30 Enthusiast
        • Jun 2004
        • 1057

        #4
        check to be sure your fuel injector harness is connected and there is no corrosion it it. Also check the wires going into the harness for breaks. It is the circular harness on the side of the block underneath the intake manifold.
        This is a problem area.

        1988 325iC Project - FINISHED!
        Build Thread: http://www.r3vlimited.com/board/show...ht=325iC+paint

        Comment

        • StereoInstaller1
          GAS
          • Jul 2004
          • 22679

          #5
          Originally posted by vespam5
          I don't have a Bentley Manual for this car, THANKS!!
          I have yet to find a Bentley online, but someone posted a link to the Electrical Manual: www.wedophones.com. Click "Manuals", then "Automotive" and I bet you figure it out from there.

          I can't remember if the later motors will let you screw up or not, seems to me that the crank position sensor and the spark reference sensor have interchangeable plugs. If those 2 are fuckerd up, no start...but I would not expect that to be the issue since you have spark.

          Can you hear the fuel pump firing up?

          Closing SOON!
          "LAST CHANCE FOR G.A.S." DEAL IS ON NOW

          Luke AT germanaudiospecialties DOT com or text 425-761-6450, or for quickest answers, call me at the shop 360-669-0398

          Thanks for 10 years of fun!

          Comment

          • StereoInstaller1
            GAS
            • Jul 2004
            • 22679

            #6
            IIRC, 191 is the connector for the injectors directly under the intake manifold. It is notorious for massive corrosion and no squirtie for that reason.

            Closing SOON!
            "LAST CHANCE FOR G.A.S." DEAL IS ON NOW

            Luke AT germanaudiospecialties DOT com or text 425-761-6450, or for quickest answers, call me at the shop 360-669-0398

            Thanks for 10 years of fun!

            Comment

            • Homsangpradit
              Noobie
              • Nov 2008
              • 37

              #7
              Originally posted by StereoInstaller1
              I have yet to find a Bentley online, but someone posted a link to the Electrical Manual: www.wedophones.com. Click "Manuals", then "Automotive" and I bet you figure it out from there.
              I just wanted to add a "Thank you very much" to this posting. I have been wanting to find something like this for a while now. Thank you StereoInstaller1..
              E30 What?

              Comment

              • Lurker27
                E30 Modder
                • Jul 2007
                • 821

                #8
                Wow, amazing link, thanks stereo.

                I spliced out my C191, it was filling with coolant all the time. It's a good placed to start since its the injector harness.
                '89 335is +turbo

                Comment

                • kronus
                  R3V OG
                  • Apr 2008
                  • 13000

                  #9
                  If you have fuel, spark, and cranking, the engine should start. I know you said you have checked the plugs, but check the wire order coming out of the distributor and make sure it's correct.

                  Are you getting fuel to the rail? Pull the line off the FPR and stick it into a cup, crank a few times and see if it's putting out fuel.

                  Then, pull an injector and see if it's spraying fuel when you crank.

                  The fuel rail has a one-way check valve, make sure you have your lines going in the right direction.
                  cars beep boop

                  Comment

                  • sticksdaman
                    R3VLimited
                    • Apr 2005
                    • 2987

                    #10
                    I'd check the wires also makes sure they line up from the cap to each cylinder
                    Originally posted by ebelements
                    Also, for those who don't know, negative camber is the greatest thing since sliced bread(panera). Even tire wear is for city busses and the elderly.

                    Comment

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