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no start/ back fire

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    #1

    no start/ back fire

    this is for my friends car. we've been serching for days online and in the books and couldnt find much

    "Backed out of the driveway(car started fine, was idling and revving fine.) Put it in first gear and drove about 30 feet to the first stop sign. Made a left, and got about 50-60 feet till I heard, BANG and then the car died. pulled over...Wouldn't start. I don't have a compression check guage, but will rent one if I have to. I've read a lot about timing being off, or the dizzy being no good. I'm just wondering where I should start"

    we replaced the dizzy along with the spark plugs and wires.
    thanks in advance
    Tags: None
    #2
    Crude way of checking compression is to turn the crankshaft using hand tool. As you turn it in the direction of normal rotation, you should feel four pronounced resistance.

    Remove oil filler cap and look inside to see a rocker arm + camshaft are moving while cranking.
    A&P-IA

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      #3
      yes ive done it with the valve cover off, make like an air escaping noise. everything roates fine also while rotating the engine manually

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        #4
        check to see if its getting spark

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          #5
          would the main relay cause it to back fire?

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            #6
            wrong timing and having your firing order will make your car backfire and run like shit

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              #7
              Your timing belt may have skipped a couple teeth.
              And u said u hear hissing rotating the motor with the valve cover off. Are the plugs in? If so a bent or damaged.valve can cause a hissing backfire no start symptom.
              Last edited by ryans91CB7; 07-21-2012, 12:29 AM.

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