Ignition Coil Wiring
 

Does anyone know the correct wiring arrangement for the ignition coil?

I am having difficulty find the correct wiring diagrams for 1986 sierra, this was the year when every was switched over so the diagrams change! :confused:

Anyway as far as I can tell, the ignition coil centre terminal is connected to the distributor cap

I am then left with the black push on terminal (with an additional plug in component that is connected to the mounting bracket screw) and 2 Nr green wires.

Logic says that the black is the negative (-), but Dogwoods diagram contradicts this!

Can anyone help or have photos ???

Don't blam me.....:eek: :rolleyes:
Let me just check, I could have made a BooBoo...

Nope, just checked.
That is how I did it.
I agree it looks wrong.
I ain't got the car here, so cannot take a pic to show you.
This diagram is only how I wired it up to get the engine running.

Still happy to be proven wrong, Incase I was just lucky..:D

(Sketch edited to make the black coil feed come from the ign switch, and not from the batt feed, Thanks AshG)

Did you have a plug in component on the black (+) I really appreciate the help

Not sure I know what you mean, sorry.

I did have a plug that went into the ign module.
My Haynes showed the Black wire going from that to the coil, and to the ignition
I don't have the manual here to double check.

David

Nick....
i,m following this thread with hope :o as i,m doing my electrics too:eek:

do you mean a small condensor/ or suppressor thing attached to the black wire from the solenoid? as my engine loom also has one of these things,....not sure what its actually called tho.

andy

Don't do that Andy...That's defo a case of the blind leading the blind...:eek:
Wish someone would come on and confirm what I have done is right.
Or tell me I'm a complete Idiot...:D

I'm sure Ash will be along soon, he's a clever B***er with lectrix.
Unless he's hiding from me..

Andy

Spot on, i have not made things easy by using a different engine! Ekk, starting to regret it! I think the suppressor component connect to the positive (+) at least we are working towards a name for it!

I found this on line "make sure that your vehicle is equipped with an ignition ballast resistor (or loom resistance wire) in the wire between the ignition switch and the coil (+) terminal.

i,ll have another look at my engine loom in the morning & if i find anything that helps i,ll post a reply,
in fact i have 2 engine looms at the mo so hopefully will be able to work out what goes where :confused: :D
if not then i,ll take the bonnet off Spuds car & have a dig about;)

don,t regret your engine choice mate, once you have it sorted it,ll be a beast :cool:

cheers
andy
ps...... i,m now sat here with the Haynes wiring diagrams in front of me ????????

It would be simple if colour printing was available when Haynes printed my book! and if they had added the odd + - symbols on the coil diagrams ( or maybe I just should have taken a few more photos and care when rushing to strip the donor)!

Determined to have it started over xmas.