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Thread: need help my 1972 z will not start

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    Default need help my 1972 z will not start

    i have a 1972 240 z with a 2.6 and a five speed trans in it okay i hope you all can help me so i had the moter running i just did the tune up ie 'spark plugs cap rotter coil weirs full filter air filter' .. everything was running smooth then i put it in reverse got out to the street then i put it in to first them it just died on me .. i have fuel going to the carb's and all but i don't know what hack happened to the z ....... is there a relay fuse or something that i might have blown or something that i am missing can you all let me know what you all might think it is?????..... think you

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    Nova Scotia,Canada,Earth Blue's Avatar
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    do you have spark at plugs?
    There is scarcely anything in the world that some man cannot make a little worse, and sell a little more cheaply.
    The person who buys on price alone is this man's lawful prey.


    John Ruskin (1819 - 1900)



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    not even getting one spark

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    Nova Scotia,Canada,Earth Blue's Avatar
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    OK, so no spark after the distributor. Now check to see if there is spark before the distributor:

    1. Pull the short HV wire at centre of the distributor.

    2. Place the open end of this wire up near one of the 3 bolts on the strut tower. Have the metal contact ~ 1/4" or less from one of the nuts on the strut tower.

    3. Crank the car and you should see a spark jump.

    Results:

    If you have a spark that means ignition (breaker/points and coil) are ok and the problem is most likely distributor cap, rotor, or plug wires

    If you do not have a spark then the problem is coil or breaker/points or power to ignition system.
    Last edited by Blue; 06-19-2011 at 05:16 AM.
    There is scarcely anything in the world that some man cannot make a little worse, and sell a little more cheaply.
    The person who buys on price alone is this man's lawful prey.


    John Ruskin (1819 - 1900)



    ZCars in Eastern Canada seaport ready for shipment to Europe

    http://ZSportCanada.com


  5. #5
    Registered User Bonzi Lon's Avatar
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    What about the fuseable link at the starter?

    Branson Z-Fest this year, pristine restored Z, no power, checked all culprits, until he found he had bumped the link loose while cleaning but not disconnected.

    Bonzi Lon
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    Formerly known as Koalia Reverend's Avatar
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    double that, it could be also bad ballast resistor (?)
    -72 240Z "Goldie"

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    what dose it look like???

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    Quote Originally Posted by Blue View Post
    OK, so no spark after the distributor. Now check to see if there is spark before the distributor:

    1. Pull the short HV wire at centre of the distributor.

    2. Place the open end of this wire up near one of the 3 bolts on the strut tower. Have the metal contact ~ 1/4" or less from one of the nuts on the strut tower.

    3. Crank the car and you should see a spark jump.

    Results:

    If you have a spark that means ignition (breaker/points and coil) are ok and the problem is most likely distributor cap, rotor, or plug wires

    If you do not have a spark then the problem is coil or breaker/points or power to ignition system.
    so i did all of that and nothing . and just replast the ballast resistor ...what els can i do ??

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    Nova Scotia,Canada,Earth Blue's Avatar
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    The fusible link the other chaps are referring to is the white wire to the starter in this picture




    You should check to see if you have 12V at the coil positive terminal with the key on.
    There is scarcely anything in the world that some man cannot make a little worse, and sell a little more cheaply.
    The person who buys on price alone is this man's lawful prey.


    John Ruskin (1819 - 1900)



    ZCars in Eastern Canada seaport ready for shipment to Europe

    http://ZSportCanada.com


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    ok so i check t all of those wires they are all good ' i toke off the wire harness raping tape all of that is good 'i need to re ripe it anyway's ' there are no kinks split's or barn't wires either' so i detach-et the positive wire to the ballast resistor and tapt it on my tongue to see it there was currant going threw it and there is so i now don't know what els to do

  11. #11
    Registered User 71Nissan240Z's Avatar
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    A good way to kill yourself is putting your mouth on ignition parts in your car. I would never ever do that even if the car isnt running. You should always use a cheap multimeter atleast to test for voltage, they are usually pretty cheap now a days and it will pay for itself instead of buying random fixes and wasting your money. You probably got a plug wire mixed up with another one somewhere, make sure your firing order is correct on the distributor to the cylinders.
    Last edited by 71Nissan240Z; 06-21-2011 at 10:13 AM.

  12. #12
    Registered User LeonV's Avatar
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    Natural selection at its finest...

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    Well it seems your coil is dead or the points are not working or the wire from the points to the coil is broken or improperly connected . Can you inspect these?
    There is scarcely anything in the world that some man cannot make a little worse, and sell a little more cheaply.
    The person who buys on price alone is this man's lawful prey.


    John Ruskin (1819 - 1900)



    ZCars in Eastern Canada seaport ready for shipment to Europe

    http://ZSportCanada.com


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    yes i have and Natural selection yes i am so buck off you ass and think you all for your help i finally got it to run i just got mad at it and hit disturber with a screw drier and the z started right on up so again think you all for your help .....

  15. #15
    Registered User LeonV's Avatar
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    Someone needs to put in some more effort into their English grammar skills. I guess Lynbrook High didn't do a very good job.

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