New engine issues

Mopar General Discussions

  1. dartfreak75

    dartfreak75 Restore it, Dont part it! FABO Gold Member

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    So the problem is it will idle but when you give it gas it dies? Correct?
    You need a timing light to check the initial timing. If that is ok id start at the carb. Is the carb new rebuilt? Has it been tested on another engine? If it were my engine id try and find a known working carb. Another thing it could be the spacer those spacers can leak. Or it could be an intake leak.
     
  2. Bill Conley

    Bill Conley Active Member

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    Hello, is there black smoke coming out of the exaust when it is running? if so check your float level and/or your needle and seat.
     
  3. dazedand confused

    dazedand confused Well-Known Member

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    I'll get a spray bottle and while the engine is running I'll squirt around the carb and spacer plate and the intake to see if idle changes. I'll take the carb back off and tear it down and flush and backflush it and check floats etc.
     
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    • j par

      j par Well-hung Member

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      This will be easier without taking it apart, are you getting a squirt of gas when you pump the gas pedal? Like is the accelerator pump working?
       
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      • 318willrun

        318willrun Utube channel 318willrun

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        P.S. - Don't pre-oil and engine by turning it over with the starter. Your rotating the camshaft and all the components. Either use a primer shaft in the oil pump or just start it.
         
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        • j par

          j par Well-hung Member

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          My finger was hovering over the agree button until you said just start it? I would say either use a prime Shaft or don't start it!?
           
        • dazedand confused

          dazedand confused Well-Known Member

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          O I almost forgot someone one here was asking me about metering jets and springs. As far as I know they are stock one that came in the edelbrock 600 ? I rotated the engine with no plugs and only the starter hooked up till my after market oil gauge pumped up to 70 psi cold . I will tear carb apart and inspect the numbers on jets and rods etc. The engine after fully warmed up has 50-53 psi oil pressure. Every thing on the engine is new from the performance harmonic balancer down to the spark plugs. So it's got to be a carb or timing=distributor issue?
           
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          • j par

            j par Well-hung Member

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            What elevation are you at?
             
          • dazedand confused

            dazedand confused Well-Known Member

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            I live in the branson/Hollister Missouri area . Only 3 miles between the 2 cities.
             
          • dazedand confused

            dazedand confused Well-Known Member

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            No bluish or black smoke out the pipes or smell of burning oil. runs clean out of the exhaust
             
          • ocdart

            ocdart Inland Mopars Car Club FABO Gold Member

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            Hollister, MO elevation is 722' above sea level
             
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            • j par

              j par Well-hung Member

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              Well when you go through the carburetor it should have a stock calibration in it hopefully. if all that checks out then you should be fine. If the carburetor hasn't been looked at then you don't know. The last guy I heard talk about his Edelbrock said something he heard about taking the front Jets and putting them in the back and putting the back jets in the front or something like that and you just can't trust anything unless you see it yourself. Yes that's a good idea to take the carb apart and make sure everything's where it should be. And absolutely make sure it's squirting out those two front little squirters when you push on the gas. That could be completely it.
              If it's a 1406 carburetor it should be just fine with a stock calibration at least to start with at a lower elevation. I doubt if it will be a Max performance effort kind of carburetor but it should run great once it's tuned to correctly.
               
            • dazedand confused

              dazedand confused Well-Known Member

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              Ok so what does that mean as far as carburetor/ timing ? It's not my goal to sound like a smartass but this a new concept as far as elevation and carbration adjustments
               
            • j par

              j par Well-hung Member

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              personally I wasn't sure of your elevation. I had a 1406 600 CFM Edelbrock here at about 500 ft. I drove it to my son's house in Colorado at over 5000 feet and it sure didn't run the same. We had to put smaller Jets and smaller metering rods and bigger metering rods actually.
               
            • j par

              j par Well-hung Member

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              ^^^it acted as if it was flooding..
               
            • ocdart

              ocdart Inland Mopars Car Club FABO Gold Member

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              Yes, they may use synthetic AMS oil for the engine shoot out in the magazine competition, but I can almost guarantee the engines used in the competition were not broken in using synthetic oil. I'll also bet most - if not all - of those "shoot out" engines used roller cams rather than flat tappet cams.
              You need to break in flat tappet cams using oil with sufficient amounts of zinc in order to keep the lobes from going "flat". IMO, You should also continue using either oil with zinc or use zinc additives with flat tappet cams.
               
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              • dazedand confused

                dazedand confused Well-Known Member

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                Before I started my engine and primed it I put a WIX filter on and 2 bottles of comp cam = cam break in oil with the Zink in it and 10w40 mobil1 synthetic oil
                 
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                • mderoy340

                  mderoy340 Well-Known Member

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                  reverse the polarity on the magnetic pickup leads on the distributor and see if the motor runs better.
                   
                • dazedand confused

                  dazedand confused Well-Known Member

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                  Will do
                   
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