Symptoms that Distributor is off by One tooth?

Discussion in 'Street/strip 400/430/455' started by Smartin, Dec 27, 2003.

  1. grant455gs

    grant455gs Well-Known Member

    Re: Checked timing chain

    Sounds possible to me..:Do No:
     
  2. Smartin

    Smartin Guest

    I'll do that too when I pull the covers tomorrow after work.

    Thanks for the suggestions guys & gals......keep em rolling!!
     
  3. 68 LeSabre 4dr

    68 LeSabre 4dr Well-Known Member

    Wide Open So .........

    The nut behind the wheel ......:Brow: :TU:
     
  4. Smartin

    Smartin Guest

    Well if I can't find anything wrong with the engine, it MUST be the nut behind the wheel!

    :Dou:
     
  5. Michael Evans

    Michael Evans a new project

    maybe a long shot

    Since you are having trouble after he engine warms up. It might be that your coil is breaking down.


    Is it on/ close to the intake? (the coil)

    Switch to a new one. Even if you have to "borrow":Brow: one.

    It could be where your weak spark is coming from?

    Have you looked at the color of the spark? Look at it cold ,then warm up the motor and look at it again.

    A good spark looks blue

    A weak spark looks yellow

    Like someone said in a earlier reply you might have to dim the lights to see it.

    While you are looking at the coil, check it out with a ohm meter.
     
  6. Smartin

    Smartin Guest

    Already swapped the coil :grin:

    New points, condenser, vac advance can, coil, rotor, cap, plugs, wires
     
  7. jamyers

    jamyers 2 gallons of fun

    Adam, have you made the obligatory blood offering to the UnderHood Gods? I've often found that they need to be appeased or they cause problems like you've got...
    I suggest raking your knuckles across the intake manifold bolts, or maybe punching the alternator fan, that usually works for me. :rolleyes:

    If that doesn't work;

    I'd open up the carb, and make darn sure there's no trash anywhere in there, especially the idle circuit, and the main jets / rods.

    I've seen coils act similar to what you're describing, as they get ready to fail altogether. Only yours is pulling hard once off idle...hmm...

    Had a '68 350 years ago that the nylon timing gear came apart, the chain jumped several teeth, as I remember, it liked to be choked a lot, but had NO power, as in 0-60 in about 50 seconds.

    And remember "Occam's Razor" - The simplest solution is often the best one.

    Good Hunting!!!
     
  8. Smartin

    Smartin Guest

    James, funny you mention idle circuits....

    Just talked to JW and he mentioned that I make sure they're clean.

    Looks like I have some detective work to do tomorrow!!


    I did install a K&N X-Stream filter on it, and it had been stored for a little while. I might have sucked some dirt in the carb.
     
  9. Smartin

    Smartin Guest

    Still workin on it...

    We've honed into the carb as the culprit right now. I have it apart and I'm inspecting for dirt or anything out of whack.

    Suspect: idle circuit:blast:

    I'll get it apart tonight and clean it tomorrow and get it back together then......now for your viewing pleasure! ME:pp :pp

    and the carb...

    [​IMG]
    [​IMG]

    Pay no attention to the massive beak getting in the way of the picture. It's hereditary:spank:
     
  10. 68 LeSabre 4dr

    68 LeSabre 4dr Well-Known Member

    Woa !!!! What was that Elizabeth ?????
     
  11. Smartin

    Smartin Guest

    who what where?? huh??:laugh:
     
  12. Floydsbuick

    Floydsbuick Well-Known Member

    Adam,

    Looks like your really getting into the carb now. I have no doubt with your ability that you'll be able to fix it up great! You the man!!


    PS You gonna sell me one of those 800s old buddy?!?:grin: :grin:
     
  13. nailheadina67

    nailheadina67 Official Nailheader

    Adam- I read this entire thread and would like to help you if I could. For what it's worth, I had the same problem once and it wound up being a very tiny peice of gasket stuck in the venturi of the quadrajet carb. It was amazing how such a little peice of dirt could make a motor run so bad. It sounded just like a vac. leak.

    I'm sure that by now you must have checked that. MAKE SURE YOU USED THE CORRECT CARB GASKET, your problem so much sounds like a MAJOR vacuum leak. I once had that happen to me on a ford, the gasket was leaking near the secondarys. Check your pcv hose/valve too.

    If the timing chain jumped, the motor will usually sound strange while cranking. Here's how I check a timing chain:
    with the dist. cap off, put a breaker bar on the harmonic balancer bolt, and while watching the rotor, move the crank back and forth. If you cam move the crank back and forth a lot and the rotor doesn't move, the chain is probably loose. You can verify a jumped chain by doing a compression test. It would be low.

    Good luck, I hope this helps you.

    :Smarty:

    :beer
     
  14. Smartin

    Smartin Guest

    Thanks Joe....

    I'll find out if we're on the money with the carb thing probably tomorrow.
     
  15. Russ Waters

    Russ Waters Well-Known Member

    This sounds just like my car! When we took it out for a drive it was so lazy when I pressed the gas that I had to bring it home after just 2 miles. I have scrapped the HEI distributor and am re-installing the original set-up with a Pertronix Ignitor for now. I had 18" of vacuum at idle, so that is no problem. This ignition change might reveal something about your problem as well. I am over purchasing junkyard distributors as I am 0-2 on the HEI project.
     
  16. Smartin

    Smartin Guest

    0-2?? Bummer!


    I do ahve plenty of power when I goose it...I can lay 70 feet of posi stripes in the parking lot. It just ides like crapola.
     
  17. IgnitionMan

    IgnitionMan Guest

    Russ, a well prepped HEI would work fine, buy it has to be done right, not just pulled from a wreck and jammed into an earileer engine configuration. Doing that will ensure failure of the conversion.

    When you get past the PerTronix again, e/mail me up and we can go over how to do the HEI's you have now right.

    There isn't any voodoo to it, just have to scrounge the right mechanical advance parts and set the vacuum advance with the right stop plate, better the coil up a bunch.
     
  18. Smartin

    Smartin Guest

    YESSSS!!!!!


    Ok, car is back on the road again:bglasses:



    Another nightmare comes to an end with the help of a few folks on this board. Dave, I think I'll stick with points for now until it gets realllly cold.....which should be soon.

    I got so frustrated, that I called Dr. Weise and gave him an overview of my problem. He gave me a couple tests to run on it to see what was going on....I called him back and discussed more issues that might be a cause for my poor idling situation.

    He either said it was a HUGE vacuum leak, which I have ruled out already, or it is a problem with the carburetor. Ding Ding Ding!!

    Idle circuits....

    Although I found obstructions in the carb when I tore it apart, I did clean everything thoroughly and blew it out with air.

    Threw it back together and it runs perfect:) :) :) :) :)

    I think there were a couple other folks that mentioned carb and idle circuits, and I would like to thank not only them, but everyone who pitched in on my weekend extravaganza.

    JW, you have mail....soon.:TU:
     
  19. Floydsbuick

    Floydsbuick Well-Known Member

    :TU: :TU: :TU: :TU: :TU:
     
  20. jamyers

    jamyers 2 gallons of fun

    Glad to hear your Boat is back in cruising condition! :TU:

    It's amazing how a *tiny* bit of trash in a carb can have such a huge effect, shows how precise these 'old things' are.

    Beak, what beak? I din' see no beak...my nose kept getting in the way...:rolleyes:
     

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