Ignition Coil Wiring

[Spikehaus]

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!

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 ???

[dogwood]

Originally Posted by Spikehaus

.

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

Can anyone help or have photos ???

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

[dogwood]

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..

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

[Spikehaus]

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

[dogwood]

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

[HandyAndy]

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

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

[dogwood]

Originally Posted by HandyAndy

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

andy

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

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

[Spikehaus]

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.

[HandyAndy]

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
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

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

[Spikehaus]

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.