Turns and turns.... No fire

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  • Jaysin
    • Jan 2005
    • 55
    #1

    Turns and turns.... No fire

    So I finally got the entire engine assembled in my 95 Monte and when I finally got to start it it fired for a second and then stalled. Now it wont fire at all. This is the stuff I already checked:
    - All 3 coil pack primary/ secondary coils
    - Battery voltage at ignition module
    - Trigger signal at ignition module
    - Fuel pressure at fuel rail (Just pushed the vent valve)
    - 7x crank sensor from ignition module
    - Replaced fuel filter
    - Double checked spark plug wires

    The car has brand new head gaskets, sparkplugs, and wires. I have moved the ignition module to the right fender well (I double checked that). I can double check the timing but I doubt it jumped. I have double checked all the sensors and they are connected. You can see why I am at a loss for the problem. If anyone has a suggestion on what else I can check I would appreciate it. Just to repeat, the engine started for about a sec (literaly) then stalled. Will not refire....
    THANX!!
    Tags: None
    • bmlawson
      • Jul 2004
      • 141
      #2
      RE: Turns and turns.... No fire

      why don't you holding down the gas peddal while cranking. that will cut of the fuel comming in to the engine and force it to use what is allready in the engine.

        Comment

        • your_I.D.
          • Mar 2005
          • 337
          #3
          Is there spark at the spark plugs? plug a known good plug into a wire. ground out the body of the plug and crank it. See if there is any secondary voltage.
          1997 Z34 Monte,: testing 4 exh cam\'s, RSM STB, K&N, Eagle077 245/40/ZR18 Nitto Extreme
          1972 3/4 ton 4X4 longbed, built 350, 400 auto, 6\" spring lift, 35\" AT/BFG\'s, dana 60 front axle, 14 bolt gm w/detroit locker 4.56 gears. My ricer smasher

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            • Jaysin
              • Jan 2005
              • 55
              #4
              Finally got her running. I guess I had messed up the timing a little because the front cams had fallen 90 degrees behind the rear cams. Redid the timing and got it done.... HOWEVER.... There is a lot of top end noise. This makes no sense to me since the heads where completely rebuilt by a machine shop, the lifters were in good shape, and the cams were perfect. It only ran for a few minutes because I was afraid of damage. When I crawled under the car to look around I saw a nice size oil leak. It was coming from the oil pump O-ring. Will a leak this bad reduce the oil pressure to the engine enough to not allow the lifters to pressurize? I will begin removing the upper and lower intake manifold on thurs afternoon. I hope to be able to replace the O-ring without removing the rear engine bank. (I HOPE, I HOPE, I HOPE!!) I think I have the ring on hand from a complete gasket set however I'm not sure how the ring looks. Can anyone post a picture of a new one for comparison? I know this is a lot of questions but I need to get this beast done and ready to drive to Chicago in about 3 weeks. Thanx for your help!!

                Comment

                • RednBlack
                  Wood Hippie
                  • Mar 2004
                  • 2795
                  #5
                  Not again! This needs to be documented and photographed. And put on the front page. http://www.60degreev6.com/index.php?...ewtopic&t=5822
                  If you are driving a Chevy, everything else, is just a blur. 3.4 Carbon Footprint.
                  sigpic

                    Comment

                    • your_I.D.
                      • Mar 2005
                      • 337
                      #6
                      Originally posted by RednBlackCutlass
                      Not again! This needs to be documented and photographed. And put on the front page. http://www.60degreev6.com/index.php?...ewtopic&t=5822
                      I 2nd that motion
                      1997 Z34 Monte,: testing 4 exh cam\'s, RSM STB, K&N, Eagle077 245/40/ZR18 Nitto Extreme
                      1972 3/4 ton 4X4 longbed, built 350, 400 auto, 6\" spring lift, 35\" AT/BFG\'s, dana 60 front axle, 14 bolt gm w/detroit locker 4.56 gears. My ricer smasher

                        Comment

                        • Jaysin
                          • Jan 2005
                          • 55
                          #7
                          Thanx for the link. O-ring questions answered. Maybe it can be added under the DOHC section, like the alt change. Seems like a good idea.
                          ANy ideas on if the leak will affect oil pressure to the lifters enough to not let them pressurize in a reasonable amount of time?

                            Comment

                            • WhiteZ34
                              • Jan 2005
                              • 42
                              #8
                              It took almost 10 minutes for my lifter tick to go away after changing the head gaskets. I was worried too, but it went away.
                              \'92 White Z34 - Custom Air Intake & Magnaflow Exhaust

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