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Wiring Diagram For '93 Rio (Last Of Carb Models) ?


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#1 Nial

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Posted 19 May 2020 - 10:19 AM

Hello everyone,

 

I have a '93 Rio I am getting back on the road after a 5 year absence.

 

Checking things over I've realised that the coil is fed by two wires from the distributor, via a connector.

 

The wires are white and yellow and white and black at the coilb black and red at the distributor end.

 

I can't find this on any wiring diagram I can find. The pinned post in technical has the Rover Repair manual for '92-'96 but as far as I can see only has a wiring diagram for the SPI models.

 

Can anyone help?

 

Thanks in advance,

 

Nial



#2 cal844

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Posted 19 May 2020 - 01:16 PM

Give your positive wire a clean, it should just be white.

And yes they are a PITA to get diagrams for, try this thread...

http://www.theminifo...agrams-redrawn/

#3 Nial

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Posted 19 May 2020 - 01:29 PM

Give your positive wire a clean, it should just be white.

And yes they are a PITA to get diagrams for, try this thread...

http://www.theminifo...agrams-redrawn/

 

There is another just white wire to the same terminal. This is _definitely_ white and yellow.

 

Thanks for the link but "The pinned post in technical has the Rover Repair manual for '92-'96 but as far as I can see only has a wiring diagram for the SPI models"

 

:-(

 

 



#4 NikOett

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Posted 19 May 2020 - 01:43 PM

Not sure that this helps you fully, but the triple gauge 1988 onward diagram may help. The wiring colours to the coil are similar to yours. A white wire to the coil usually means a pre-ballast system (unless modified) - and your car should originally have had a ballast as far as I know.

 

http://www.theminifo...ttach_id=193852



#5 GraemeC

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Posted 19 May 2020 - 02:18 PM

White and yellow is the 12V feed to the coil from the solenoid during cranking - usually only used for a ballast ignition system.

White is an ignition fed 12V supply to the coil.

 

The two don't normally get used together so there has been a change.  You *should* be able to remove the white/yellow and have no difference.

 

White/black is from the coil negative to either the points (if you have them) and/or the rev counter.

Red & black at the dizzy sounds like electronic ignition (so no points)

 

 

Post some photos of what you have.


Edited by GraemeC, 19 May 2020 - 02:21 PM.


#6 Nial

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Posted 19 May 2020 - 02:21 PM

Repliy to NikOett:  Thanks for the link, but the white and yellow wire _definitely_ just goes to the distributor.


Edited by Nial, 19 May 2020 - 02:22 PM.


#7 Nial

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Posted 19 May 2020 - 02:32 PM

"White and yellow is the 12V feed to the coil from the solenoid during cranking - usually only used for a ballast ignition system"

 

Nope. :-(

 

White and yellow and white and bkack wires come off the coil to a connector, then red and black wires to the distributor.

 

 

"Red & black at the dizzy sounds like electronic ignition (so no points)"

 

This is one of the last carb models so might have electronic ignition?

 

I'll get a photo up in 5 mins.

 

[/Edit] I don't have a USB C cable here so have had to email it to myself, and it's not coming through  >:-|   [/Edit]


Edited by Nial, 19 May 2020 - 02:52 PM.


#8 cal844

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Posted 19 May 2020 - 02:54 PM

"White and yellow is the 12V feed to the coil from the solenoid during cranking - usually only used for a ballast ignition system"

Nope. :-(

White and yellow and white and bkack wires come off the coil to a connector, then red and black wires to the distributor.


"Red & black at the dizzy sounds like electronic ignition (so no points)"

This is one of the last carb models so might have electronic ignition?

I'll get a photo up in 5 mins.

[/Edit] I don't have a USB C cable here so have had to email it to myself, and it's not coming through >:-| [/Edit]




Wiring sounds ok, if the dizzy wires go to a black box on the side of the dizzy its electronic

#9 Nial

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Posted 19 May 2020 - 04:06 PM

Bugger, havign problems posting the photo now.


Edited by Nial, 19 May 2020 - 04:07 PM.


#10 Nial

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Posted 19 May 2020 - 04:11 PM

At last found the attach button.

 

I think this shows things fairly clearly, I can't find this in any manual/ wiring diagram. :-(

Attached Files


Edited by Nial, 19 May 2020 - 04:11 PM.


#11 GraemeC

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Posted 19 May 2020 - 05:06 PM

I have seen something similar before, but its not a common thing. That said, the blue crimps aren't original so could be a previous 'repair'.

However, it is connected up correctly for the dizzy, so should work fine.  

 

Some of the wiring diagrams are generic and miss odd little things like this - the cars with the 18 way fusebox on the bulkhead aren't catered for in a lot of resources as they seemed a short lived changeover from the 'normal' 4 way fusebox to the one inside the car like the MPi



#12 MikeRotherham

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Posted 19 May 2020 - 05:13 PM

I have the actual manual as a hard copy and Nial is right there is no mention of the carb model. The wiring diagrams just pertain to the SPI.

 

On my 94 carb model the wire that Nial says is yellow and white is just white although looks more like a cream colour.



#13 Nial

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Posted 19 May 2020 - 06:32 PM

I have the actual manual as a hard copy and Nial is right there is no mention of the carb model. The wiring diagrams just pertain to the SPI.

 

On my 94 carb model the wire that Nial says is yellow and white is just white although looks more like a cream colour.

It's _definitely_ yellow and white, it doesn't show up brilliantly in the photo but there's a defiinite yellow stripe.

 

It looks like they were just making it up as they went along!



#14 cal844

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Posted 20 May 2020 - 09:42 AM


I have the actual manual as a hard copy and Nial is right there is no mention of the carb model. The wiring diagrams just pertain to the SPI.

On my 94 carb model the wire that Nial says is yellow and white is just white although looks more like a cream colour.

It's _definitely_ yellow and white, it doesn't show up brilliantly in the photo but there's a defiinite yellow stripe.

It looks like they were just making it up as they went along!

That connector is non standard. The two dizzy wires go straight from the coil to the module on the side with no additional connectors.

#15 MikeRotherham

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Posted 20 May 2020 - 10:34 AM

Looks like someone has perhaps added a non standard colour wire.

 

As CAL844 said there is no inline connector at that point.

 

On mine the 2 wires go straight into the electronic module.

 

I think the lead should look something like this:

 

http://www.minispare...|Back to search

 


Edited by MikeRotherham, 20 May 2020 - 10:37 AM.





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