No Spark at the coil

[Neb]

I've tried a few coils. Wiring diagrams confuse me. I'm looking at it and trying to figure out where the issue may be. Any ideas where I should look? I'm thinking wires but not sure which wires to check.

[joltfreak]

Maybe this may help. it's also on my website (http://joltfreak.tripod.com//id17.html)

MAIN TRACER PURPOSE
Black  All earth connections
Black Brown Tachometer generator to tachometer
Black Blue Tachometer generator to tachometer
Black Red Electric or electronic speedometer to sensor
Black Purple Tempreature switch to warning light
Black Green Relay to radiator fan motor
Black Light green Vacuum brake switch or brake differential pressure valve to warning light and/or buzzer
Black White Brake fluid level warning light to switch and handbrake swith, or radio to speakers
Black yellow Electric speedometer
Black Orange Radiator fan motor to thermal switch 
MAIN TRACER PURPOSE
Blue  Lighting switch (head) to dip switch
Blue Brown Headlamp relay to headlamp fuse
Blue Red Dip switch to headlamp dip beam fuse
  Fuse to right-hand dip headlamp
Blue Light green Headlamp wiper motor to headlamp wash pump motor
Blue White a) Dip switch to headlamp main beam fuse
  b)Headlamp flasher to main beam fuse
  c)Dip switch main beam warning light
  d)Dip switch to long-range driving light switch
Blue Yellow Long-range driving light switch to lamp
Blue Black Fuse to right-hand main headlamp
Blue Pink Fuse to left-hand dip headlamp
Blue Slate Headlamp main beam fuse to left-hand headlamp or inboard headlamps when independently fused
Blue Orange Fushe to right-hand dip headlamp
MAIN TRACER PURPOSE
Brown  Main battery lead
Brow Blue Control box (compensated voltage control only) to ignition switch and lighting switch (feed)
Brown Red Compression ignition starting aid to switch
  Main battery feed to double pole ignition switch
Brown Purple Alternator regulator feed
Brown Green Dynamo 'F' to controlboxl 'F'
  Alternator field 'F' to control box 'F'
Brown White Ammeter to control box
  Ammeter to main alternator terminal
Brown Yellow Alternator to 'no charge' warning light
Brown Black Alternator battery sensing lead
Brown Slate Starter relay contact to starter solenoid
Brown Orange Fuel shut-off (diesel stop) 
MAIN TRACER PURPOSE
Green  Accessories fuesed via ignition switch
Green Brown Switch to reverse lamp
Gree Blue Water temperature gauge to temperature unit
Green Red Direction indicator switch to left-hand flasher lamps
Green Purple Stop lamp switch to stop lamps, or stop lamp switch to lamp failure unit
Green Light green Hazard flasher unit to hazard pilot lamp or lamp failure unit to stop lamp bulbs
Green White Direction indicator switch to right hand flasher lamps
Green Yellow Heater motor to switch single speed (or to 'slow' on tow- or three-speed motor)
Green Black Fuel gauge to fuel tank unit or changeover switch or voltage stabilizer to tank units
Green Pink Fuse to flasher unit
Green Slate a) Heater motor to switch ('fast' on two- or three-speed motor)
  b)Coolant level unit to warning light
Green Orange Low fuel level switch to warning light
MAIN TRACER PURPOSE
Light green  Instrument voltage stabilizer to instruments
Light green Brown Flasher switch to flasher unit
Light green Blue a)Flasher switch to left-hand flasher warning light
  b)Coolant level sensor to control unit
  c)Test switch to coolan level control unit
Light green Red Fuel tank changeover switch to right-hand tank unit or entry and exit door closed switch to door actuator
Light green Purple Flasher unit to flasher warning light
Light green Green Start inhibitor relay to change speed switch; or switch to heater blower motor second speed on three-speed unit
Light green White Low air pressure switch to buzzer and warning light
Light green Yellow Flasher switch to right-hand warning light; or differential lock switch to differential lock warning light
Light green Black Front screen jet switch to screen jet motor
Light green Slate Fuel tank changeover switch to left-hand tank unit; or entry and exit door open switch to door actuator
Light green Orange Rear window wash switch to wash pump; or cab lock-down switch to warning light 
MAIN TRACER PURPOSE
Orange  Wiper circuits fused via ignition switch
Orange Blue Switch to front screen wiper motor first speed timer or intermittend unit
Orange Green Switch to front screen wiper motor second speed
Orange Black Switch to front screen wiper motor parking cicuit, timer or intermittent unit
Orange Purple Timer or intermittent unit to motor parking circuit
Orange White Timer or intermittent unit to motor parking circuit
Orange Yellow Switch to headlamp or rear window wiper motor feed, timer or relay coil
Orange Light green Switch to headlamp or rear window wiper motor parking circuit timer or relay coil
Orange Pink Timer or relay to headlamp or rear window wiper motor feed
Orange Slate Timer or relay to headlamp or rear window wiper motor parking circuit
Pink white Ballast terminal to ignition distributor
MAIN TRACER PURPOSE
Purple  Accessories fed direct from battery via fuse
Purple Brown Horn fuse to horn relay when horn is fused separately
Purple Blue Fuse to heated rear window relay or switch and warning light
Purple Red Switches to map light, under bonnet light, glove box light and boot lamp when fed direct from battery fuse
Purple Green Fuse to hazard flasher
Purple Light green Fuse to relay for screen demist
Purple White Interior lights to switch (subsidiary circuit door safety lights to switch)
Purple Yellow Horn to horn relay
Purple Black Horn to horn relay to horn push
Purple Pink Rear heated window to switch or relay
Purple Slate Aerial lift motor to switch up
Purple Orange Aerial lift motor to switch down
MAIN TRACER PURPOSE
Red  Main feed to all circuits mastered by sidelamp switch
Red Brown Rear fog guard switch to lamps
Red Blue Front fog lamp fuse to fog lamp switch
Red Purple Switches to map light, under bonnet light, glove box light and boot lamp when sidelamp circuit fed
Red Green Bulb failure unit to right-hand-side and rear lamps
Red White a)Sidelamp fuse to right-hand side and rear lamps
  b)Sidelamp fuse to panel light rheostat
  c)Fuse to panel light switch or rheostat
  d) Fuse to fibre optic source
Red Yellow Fog lamp switch to fog lamp or front fog fuse to fog lamps
Red Blakc Left-hand,sidelamp fuse to side and tail lamps and number plate illumination
Red Pink Sidelamp fuse to lighting relay
Red Slate Lamp failure unit to lef-hand side and tail lamps
Red Orange Fusebox to rear fog guard switch
Slate  Window lift main lead
MAIN TRACER PURPOSE
White  Ignition switch or starter solenoid to ballast resistor
White Brown Oil pressure switch to warning light or gauge, or starter relay to oil pressure switch
White Blue Choke switch to choke solenoid (unfused) and/or choke to switch to warning light, or electronic ignition distributor to drive resistor
White Red Starter switch to starter solenoid or inhibitor switch or starter relay or ignition (start position) to bulb failure unit
White Purple Fuel pump no 1 or right-hand to changeover switch
White Green Fuel pump no 2 or left-hand to changeover switch
White Light green Start switch to starter interlock or oil pressure switch to fuel pump or start inhibitor switch to starter relay or solenoid
White Yellow Ballast resistor to coil or starter solenoid to coil
White Black Ignition coil contact breaker to distributor contact breaker, or distributor side of coil to voltage impulse tachometer
White Pink Ignition switch to radio fuse
White Slate Current tachometer to ignition coil
White Orange Hazard warning lead to switch
Yellow  a) Overdrive
  b) Petrol injection
  c)Door locks
  d)Gear selector switch to start

[94touring]

So it was the distributor huh?  Do those 123 dizzy's have a condensor inside you can replace?  Perhaps it went bad on you.  I've had a couple dizzy's go bad due to the condensor, and its a quick cheap fix. 

[Neb]

Thank you much Joltfreak! That and a few other things posted on MM helped me figure it out. Still don't have a tester but I have spark. Now if I can get the timing set and Dist in and not 180 out.

[Neb]

So it was the distributor huh?  Do those 123 dizzy's have a condensor inside you can replace?  Perhaps it went bad on you.  I've had a couple dizzy's go bad due to the condensor, and its a quick cheap fix. 

not that I've seen. I'll check it after I have her running with the other dizzy. Non of my cars are starting right now and I need one up so I can go check on a few possible work options.

[94touring]

You should know if its 180 out pretty quick I would think. 

[Neb]

She's firing up!!! But she won't stay running ??? Idles slow for up to 5sec. then stops.

[94touring]

 Plugs in the right order now?

[Neb]

Plugs are in the right order and she's running. I messed with the fuel mixture and managed to get her to sustain idle on her own. Adjusted the timing till it idled smooth but appears advanced with a timing light. Burning rich now as well. At least I have a starting point for tuning her back up. Now to order those dang bushings so the engine doesn't beat the carb. to death or tear anything else up.

[94touring]

Lean it slowly till it about shuts off, then two turns rich and you should be set pretty close.  Once you take it for a drive you'll know for sure if it needs adjusted more.  Get your timing set and you're good to go. 

[Neb]

It appears I had it WAY rich. More than I thought. Claudia is now at a nice steady idle, still need to lean out the fuel more and play with the timing a bit, but I need a break/nap. Can't take her out on the road because the Ghia is blocking her in the garage and I need at least one more person to help push her (Baby the Ghia) out of the way.

Dan you still interested in a Ghia? Cheap! It's still a full project and I know you've been avoiding that. LOL Even needs a rebuild on the engine. I stole quite a few parts from it for the Bug (Suzy).

[94touring]

Someday maybe, but not today.  Glad you got it running.  If it was way too rich and still runs kinda funky after you get the timing set, you may have fouled the plugs too. 

[Neb]

Well, the Mini starts and runs then when I let it cool down I have to tinker with the fuel and timing for 15-30 min. before it will start back up. Since I have an electric fuel pump installed I'm going to pull the mech. pump to see if that does anything. If it doesn't I'll work on the other carb. If that doesn't work I'll be stuck. Seems like since I got the spark back I may have a fuel issue.

[94touring]

As long as the electric is pumping fuel I wouldn't mess with it.  Sounds like you may have fouled plugs.  Get a new set of 4 at autozone, make sure the mixture is lean and timing is set, and throw them in there and gradually richen it till it runs strong.     

[Neb]

That's the thing. I'm not sure if I'm getting a proper fuel supply. When it was running if I hit gas it would hesitate. Ease into it and it was fine.

[94touring]

Ok, if you floor it and it hesitates and gives you a bogged down feeling, reach in there and rich the carb and try again.  Do this untill it smoothes out.  If it never smoothes out you may have other problems.  You could see if it improves when you pull the choke as well. 

[joltfreak]

How much fuel pressure are you running at?
it should be 2-3 psi max. get yourself a inline fuel pressure gauge to see where your at. if it's too high than the carb float will not be able to keep fuel from bypassing it and causing you to run very rich. you should only need one pump going to fuel any mini motor (i went with an electric pump). if you are running at a higher psi than you may need to get a fuel pressure regulator. the mini needs very little fuel pressure to run. when i was running in my motor on the my buddies test stand we never even used a fuel pump we had our fuel tank sitting higher than the motor and it was gravity fed. no issues!