Car starting issues are driving me crazy!

Discussion in 'Street/strip 400/430/455' started by 68riviera430, Dec 7, 2009.

  1. 68riviera430

    68riviera430 BRRRRAAAAP!

    It is getting 11.75 in run (position before start) and about 9.5 when I crank it.
    Is it possible that the points got burned out from getting that 11.75 constantly? Why is it doing that?
     
  2. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    Did you make sure the points were closed when you took your measurement without cranking, ignition in the run position?

    If you are getting battery voltage all the time, the points will not last long. Most likely reason? When you had the Pertronix installed, the resistance wire was eliminated, and the Pertronix was running off full battery voltage. When points were re installed, no ballast resistor was added. Another possibility is the shorting switch in the starter solenoid is bad, supplying battery voltage through the "R" terminal all of the time. That is less likely though.
     
  3. 68riviera430

    68riviera430 BRRRRAAAAP!

    Yes sir I did, I also checked and when the car is off they get no voltage, so its only 12 temporarily when its in the run position. I called the guy from the shop that I just picked it up from yesterday, he said that brand new points and condensor with ballast resistor were put in and that the reason why the car is having such a hard time starting up is cause its been sitting for about a month and that even when they tried to start it up yesterday they had to charge it for a while and jump it to get it going. Which may be true because when they had replaced all that I went to the shop a couple times and it would start right up no problem.
    It is only about a 5 minute drive from his shop to my house so maybe it just wasn't enough time for the battery to juice up all the way.
    So I took the battery back to the auto store and told them to do a SLOW charge cause its one of those optima red top gel ones and they had done a quick charge. Hopefully the results are good.
     
  4. 71skylark3504v

    71skylark3504v Goin' Fast In Luxury!

    Is there a Buick freak near you? I know this has to be something simple that anyone experienced in old Buicks could diagnose and fix pretty quickly. Troubleshooting is hard over the internet.
     
  5. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    If you have full battery voltage to the points all of the time, point life will be short. The ballast resistor should drop the voltage in the run position.
     
  6. 68riviera430

    68riviera430 BRRRRAAAAP!

    The battery charging got it started, then took it around for about a 15 minute drive and let it idle for about 5 more. We'll see if it actually starts tomorrow though.
    The only thing is, I tested the coil while running, the one side with the red wire going to it (im assuming its positive), is getting 14, while the the side with the purple wire and condensor going to it was getting 6.
    Does that 14 mean I should be worried about the points burning out quickly or that I should put a ballast resistor somewhere in line?
    If so how do I do that?
     
  7. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    Adrian,
    You know what they say about the word ASS U ME, right? There are 2 small terminals on the coil, a + and a -. The negative side goes to the distributor, the other side is the positive. Measuring voltage with the engine running is MEANINGLESS in this case. I want you to measure from the coil + to ground with the engine OFF, the ignition switch in the run position. (THE POINTS MUST BE CLOSED)

    Didn't you get a Chassis manual. Read that book! Especially the section on the ignition system. Read the whole chapter. In that chapter is a paragraph entitled "Ignition system resistance test" It will discuss what I've tried to convey to you in my posts in this thread.:idea2:
     
  8. 68riviera430

    68riviera430 BRRRRAAAAP!

    Just went outside to start it again. Guess what... didnt start. This is ridiculous
     
  9. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member


    Is it not cranking, or not starting?
     
  10. 68riviera430

    68riviera430 BRRRRAAAAP!

    Not starting. Wondering if I should just go pick up a trickle charger and leave it on all night
     
  11. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    If it is cranking at normal speed, the battery is fine.
     
  12. Daves72

    Daves72 I get jokes.

    Could it be a flaky coil making a weak spark?

    Seems like the coils that are made to work with points don't like the full 12 volts.
     
  13. 68riviera430

    68riviera430 BRRRRAAAAP!

    it was turning kinda slow, and judging by how quick it started with that other charge id like to eliminate the easiest things first if possible
     
  14. 68riviera430

    68riviera430 BRRRRAAAAP!

    I charged it all night, it smells really gassy when i tried to start it(i only pumped it twice) and it didnt start. I don't know why. And my choke doesn't ever close all the way, or open whether or not i pump the gas pedal if that means anything
     
  15. 68riviera430

    68riviera430 BRRRRAAAAP!

    I went and inspected my carb along with my chassis manual, after reading and what i saw i think there is something wrong with that whole system.
    After all, maybe it being jumped all the time just gave it enough time to pump it till it just started?
    Any specific things to look for?
    Also, there is a square opening in the back of my carb that looks like it should have a cover on it cause there is a screw hole on the top and bottom, but there is no cover, is this something wrong?
     
  16. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    There is a rectangular opening on the back of the carburetor. Nothing wrong with that. I have the same opening on my carburetor. As long as there is no vacuum leak there, you are fine.

    You still haven't done the voltage test I asked you to do. We don't know if there is any resistance inline to the coil, or not?

    It also sounds like your choke is not working correctly.
     
  17. 68riviera430

    68riviera430 BRRRRAAAAP!

    It reads 12 while it is in the run position NOT RUNNING, I didn't make that clear in my last posting, sorry.
     
  18. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    And you are sure the points are closed when you took this measurement, correct?
     
  19. 68riviera430

    68riviera430 BRRRRAAAAP!

    You said to check by bumping the starter? I bumped it several times and tested after
     
  20. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    I'd rather you take the cap off, look at the points, and verify that they are closed. Then take the reading.
     

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