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flathead ford V8 need help please ballast resistor or coil issues

Discussion in 'The Hokey Ass Message Board' started by BillyBobsSpeedShop, Jun 8, 2013.

  1. BillyBobsSpeedShop
    Joined: Jan 6, 2008
    Posts: 522

    BillyBobsSpeedShop
    Member

    Flathead trouble need help.

    So I was driving back from my first cruise in in my 29 ford coupe with a 59ab flatty in it. The motor has edeldbrock heads, Edelbrock intake with 2 94 carbs, electric fuel pump and stock ignition and a12v alternator. The car drove fine to the cruise in and cranked right off the bat when leaving the cruise in, but on the way home down the highway I heard a loud pop sound that I thought the car back fired but then the car lost power and started sputtering when I gave it gas. The more gas I gave it the more it sputterd and finally died to where I coasted to the side of the road. Once pulled over I tried to crank the coupe and it would turn over fine but just wouldn't fire? I pulled the hose off of the carb and turned on my fuel pump and fuel cameout so iI know it is getting gas to the carb but just isn't firing.

    What should I start looking for first? I truly thought my engine let go but my father in law doesn't think so since it does turn over still so easily. He isn't a flathead guru and wanted me to ask here on the HAMB for advice.


    Thanks
     
    Last edited: Jun 30, 2013
  2. corncobcoupe
    Joined: May 26, 2001
    Posts: 5,410

    corncobcoupe
    SUPER MODERATOR
    Staff Member

    Distributor , points
     
  3. BuiltFerComfort
    Joined: Jan 24, 2007
    Posts: 1,620

    BuiltFerComfort
    Member

  4. Sometimes the it makes a pop when your power valve goes. this will flood the engine with gas and make it behave very poorly even quit. Then it is hard to start because it is flooded. After waiting a while for the gas to evaporate, it will again start but run poorly, often bucking and chugging like the choke is pulled. Just another thing you might look into. The 94 is notorious for blowing power valves if you have a backfire.
     

  5. Rok 51
    Joined: Mar 20, 2011
    Posts: 118

    Rok 51
    Member

    Check to see if the points are still opening.
     
  6. swissmike
    Joined: Oct 22, 2003
    Posts: 1,297

    swissmike
    Member

    Had a bad condenser do the same. The aftermarket Mallory units are prone to this.
     
  7. Petejoe
    Joined: Nov 27, 2002
    Posts: 10,808

    Petejoe
    ALLIANCE MEMBER
    from Zoar, Ohio

    Nice coupe! No big problem. I agree with all the above options.. condenser, points, distributor internals, and/or the carb power valve. If you need to change the Power valve be sure to check out fitting issues on the Power Valve seating correctly during replacement of aftermarket PV's. Do a search here on the Hamb for that subject.
     
  8. BillyBobsSpeedShop
    Joined: Jan 6, 2008
    Posts: 522

    BillyBobsSpeedShop
    Member

    We checked some things this morning and found that I do have power to the distributor but when I stick a screw driver into the spark plug wire I am not getting any spark?
     
  9. Petejoe
    Joined: Nov 27, 2002
    Posts: 10,808

    Petejoe
    ALLIANCE MEMBER
    from Zoar, Ohio

    See above options.
     
  10. Condenser or coil.
     
  11. J'st Wandering
    Joined: Jan 28, 2004
    Posts: 1,772

    J'st Wandering
    Member

    Since you say no spark.

    Does it have the fiber cam shaft gear? If so, maybe failed. Is rotor turning?

    I have had condensers fail. Some of the new ones are bad.

    Neal
     
  12. BillyBobsSpeedShop
    Joined: Jan 6, 2008
    Posts: 522

    BillyBobsSpeedShop
    Member

    I haven't been able to take the distributor cap off yet. I don't have much clearance in between the radiator and the cap so trying to put a game plan together to not take the radiator and hood off. I am trying to rule out the things that I can get to first.

    Thanks
     
  13. Are you running a resistor?
     
  14. Nobey
    Joined: May 28, 2011
    Posts: 1,182

    Nobey
    Member

    Try another condenser before you pull the radiator !
     
  15. Petejoe
    Joined: Nov 27, 2002
    Posts: 10,808

    Petejoe
    ALLIANCE MEMBER
    from Zoar, Ohio

    Remove the distributor. Not a big chore. The only way to work on those front mounts
     
  16. BillyBobsSpeedShop
    Joined: Jan 6, 2008
    Posts: 522

    BillyBobsSpeedShop
    Member

    I am running a resistor and wasn't sure if I needed one or not to begin with. Should I be running one?
     
  17. Petejoe
    Joined: Nov 27, 2002
    Posts: 10,808

    Petejoe
    ALLIANCE MEMBER
    from Zoar, Ohio

    Depends on your coil. If your coil is internally resisted you should not be using one.
     
  18. BillyBobsSpeedShop
    Joined: Jan 6, 2008
    Posts: 522

    BillyBobsSpeedShop
    Member

    WhTs the best way to tell that for the coil? Also how can I tell if the coil is bad?
     
  19. Petejoe
    Joined: Nov 27, 2002
    Posts: 10,808

    Petejoe
    ALLIANCE MEMBER
    from Zoar, Ohio

    Usually they are marked if internally resisted. Don't know how to check them..... I usually just change them if they are in question. Someone else may know here.
    Found this..
    http://autorepair.about.com/od/troubleshooting/ss/coil-test-ohm.htm
     
  20. BillyBobsSpeedShop
    Joined: Jan 6, 2008
    Posts: 522

    BillyBobsSpeedShop
    Member

    Ivw
    I am running a 12v alternator do I need to run a 12v condenser on the stock distributor?
     
  21. Nobey
    Joined: May 28, 2011
    Posts: 1,182

    Nobey
    Member

    Just a 12 volt coil, condensers don't know the difference.
     
  22. BillyBobsSpeedShop
    Joined: Jan 6, 2008
    Posts: 522

    BillyBobsSpeedShop
    Member

    When I pull the dizzy what should I be looking for that would cause this?
     
  23. J'st Wandering
    Joined: Jan 28, 2004
    Posts: 1,772

    J'st Wandering
    Member

    First, check to see if the cam is turning when you crank the engine over. If it does not turn, you found the problem.

    Second, look at the points. Are the set correctly? Some of the reproductions are of questionable quality. I had some where the springs lost their tension and they had only a few miles on them.

    Third, I would replace the capacitor.

    Forth, I would wait to see what other have to add to the list.

    Neal
     
  24. fab32
    Joined: May 14, 2002
    Posts: 13,985

    fab32
    Member Emeritus

    Just fought this same problem with Harrison's old '38 coupe.
    After checking off every one of the potential problems listed here I replaced the condenser and the old girl didn't make a half revolution and sat there purring like a contented cat.

    Frank
     
  25. BillyBobsSpeedShop
    Joined: Jan 6, 2008
    Posts: 522

    BillyBobsSpeedShop
    Member

    Where can I find a good set of points that is good quality? Same for the condenser?
     
  26. nsh57
    Joined: Mar 14, 2004
    Posts: 263

    nsh57
    Member

    Try GMC Bubba on here... I believe he can get you the quality parts you need. Don't trust the "new" points and condensers that the parts stores can get.
     
  27. I've had 2 cars act like your descripition when the coils expired. One car [62 Buick special with 215 V/8] I was able to actually limp it home on the bad coil. My 57 Pontiac gave a big backfire and quit.
    New coils fixed both cars and yes, one tested out ok with an ohm meter...didn't test the other one.
     
  28. Rattle Trap
    Joined: May 11, 2012
    Posts: 358

    Rattle Trap
    Member

    When you buy your points and condensor pick up a second set to keep in the car for spares. Learn how to do a roadside tune up. This is a must when you own an older car.
     
  29. J'st Wandering
    Joined: Jan 28, 2004
    Posts: 1,772

    J'st Wandering
    Member

    Good question. For myself, I go to NAPA and see what they have. Then go to someone like Little Dearborn or Red's Headers. I am sure Bubba will hook you up with parts as good as you will find.

    I carry a spare distributor that I can swap in when needed.

    For the capacitor that I had that failed. I replaced it with another one that I bought at the same time as the failed one. The replacement one has worked fine for several years. That confirms the opinion of just care spares.

    Neal
     

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