Trigger Point Conumdrum

Hi not sure if my other post went through so I thought I'd write another.
Here is my problem. I was trying to clean the connector on the trigger point lead when it unexpectedly came apart. I did not see where the wires went. The problem was complicated because the wires coming from the distributor were not the original wires (see the photo). I tried to match them as best I could but I have since discovered that they were not in a matching order (I think). I pulled the distributor out to find the correct connections but still can not get the engine to fire. I have checked the voltage across the black wire and have appox 4 volts on the Y/green and Y/blue combination and (after rotating the distributor) 4 volts on the Y/red and y?white. The car was running fine before all this so I am a little perplexed as to why this has occurred.
The only thing I have touched is the distributor, the connector and sprayed the sliding throttle switch.
I have also read Dr. D-Jets but was wondering if someone might be a little more specific as to what I should be testing?
Could I have inadvertently damaged something by hooking the connector wires up incorrectly?
Are the colour codes correct on the photo for the correct wiring?
Many thanks
Peter

Hi Peter - and a very warm welcome at jetronic.org.

I once had to repair such a points set and took a photo:



As you can see, the colours are as you described.

The '12' is connected to the ground inside the ECU and the points switch the other wires by grounding them.

It wouldn't matter so much if you would have interchanged the other wires - the engine would run, a little bit less smoothy.

The points themselves have to be kept absolutely clean - no grease or spray. The electric current is very low, grease can disturb the connection.
It's the same at the throttle switch. Clean it - but don't grease it. Otherwise you will get trouble.

Could you measure the distance between the fibre rubbing blocks? Maybe they are worn... distance should be about 23,0 mm.

Regards
Norbert

Hi Norbert
Thank you for the reply. I did use an ohmmeter across the connections whilst rotating the distributor and it flucuated between 0 and infinity. I guessed ( through a rough measurement of the differnet wires ) that it was on between 135 and 150 degrees. I used a protractor on the top. I am now suspecting that it might be lack of spark as I hooked up a timing light whilst turning it over and there was no 'light'. I just dont know how this could be possible ???
Thanks again
Peter

Hi Peter,

it could be that you have broken the green cable from ignition contact to ignition module while fiddling with trigger contacts.

Hi
I have just discovered that I might have knocked the connector of its track whilst cleaning it. It appears that there are 2 sliding connectors on the 1 track (see arrows on picture) . Would this stop the car from starting???
Can you also tell me why the cover has so many numbers when there are only 5 connectors?
Is it also true that you should hear the injectors 'firing' if the ignition is on and you manually move the throttle?

Thanks
Peter


ps - sorry about the photo

Hi Peter,
you might have interrupted the connection towards the idle switch-concact.

But the engine should start even without the switch.

The switch looks very corroded.

Maybe you can overhowl it and bring it back to function. But you can't leave it as it is.

- Clean it, but don't grease it. Use no grease or contact-spray.
The current is very low and this would cause problems.

Regards
Norbert