a couple of strange questions

Discussion in 'Mech Tech' started by bac2ba6, Jun 5, 2013.

  1. 1. with the engine running should the engine stop running if both leads are pulled off the battery ?

    As mine dosnt it just keeps running .

    2. i want to eliminate a possible wireing problem can you run a cable from the +side of the battery direct to the + side of the coil to power it ? if so do you need to remove the ignition live wire to it while its powered ?
    thanks
     
  2. Sounds possessed!
     
  3. Don't be pulling the battery leads off, you can cook your alternator doing that o_O

    It will keep running BTW as the alt is producing 12v!!

    What fault is occurring?
     
    steveagain likes this.
  4. ^this. Alternators don't like working without a load: you'll knacker the regulator and/or diodes. The engine will run, powered by the alt: you only need a battery for starting.

    2. Yes. No need to disconnect the existing wire.
     
  5. meant to say its a dyno ! i didnt actually pull then off they were just loosly on while was doing something and i knocked the + one off and the engine was still running

    on a previous thread to do with possible carb problems ( and found a loose stud on the carb ) , i have totally redone everything on the engine all off and sealed and tightened back on so im 99% sure there are no air leaks anywhere . ( wd40 test dosnt produce any results either ) .
    But still haveing a problem with the lower revs with it struggleing to pick up any speed and as mentioned if i hold the carb open about 1/4 throttle it really struggles to stay running its not untill i open about half way the revs will pick up and run with some power . ive even borrowed a known "good carb " and tried that but still the same , so someone mentioned it may be an electrical problem and to run a lead direct from the battery to the coil to cut out the ignition wire ??

    i know the actual ignition system ( leads , plugs , rotor , cap ect ) are good dont know about the condensor , but i put a 009 with elecy igntion in and timed it up to try that and still produces the same results . its driveing me mad :)
     
  6. It may be the distributor, can you borrow another and see if it makes a difference and are you sure the timing is ok?
     
  7. Accelerator pump jet not working?

    Scratch that... just saw that you've tried a known good one :thinking:
     
  8. What're you timing it too? Should be 7.5°BTDC
     
  9. yep the timeing idles at about 7 ( which is where it seems to like to fall to ) at 3000 or so rpm its advances to 30 with vac line disconnected , and with connected it will advance to around 40

    saying that is does jump a little on idle between 7 and 9 ?
     
  10. yeah have swapped for a 009 with elecy ignition and that does the same
     
  11. That is a very strange fault :thinking:
     
  12. Tappets? Might be clutching at straws!
     
  13. ive got that set up mate >oo9 and electronic ign , flat spots out about where yours does ,I understood that was expected due to set up ?? so much I have seen on sites re the said 009 flat spot ,(I live with mine )thou for me its no big deal , I realise yours may be real hassle(or simply a pain in/on the bum?)
     
  14. the only thing i havent checked are the head nuts , but you can only get to the lower ones carnt you ???? without yanking the engine ?

    Also are they about 23lbs of torque ????
     
  15. checked and adjusted to spec
     
  16. does the same with a svda dizzy
     

  17. Yes and yes
     
  18. will check those tomoz then if there ok hopefully it would mean the others are too
     
  19. Zed

    Zed Gradually getting grumpier

    I doubt that's it, it would sound like a tractor.
     
  20. thats the wierd thing it idles lovely and sounds ok its just at the lower rev range it struggles especially under load , if i rev the nuts off it and slowly slip the clutch its not too bad at picking up speed , or if i accelrate from stationary and very very slowly accelerate and the same in the next gear its ok , its just when you drive normally untill you hit about 2500-3000 rmp in any gear it will just stumble and theres no power
     

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