Looking for 24v coil, ignition Amplifier for 1990 Defender Pickup MIL

Hello,
Looking for help identifying some parts. I believe the amplifier in the ignition system has gone bad, I have not been able to find any info about the 24v electrical system I have. The engine is a petrol 3.5 V8, . I've trouble shot the system and believe it's the amplifier except I can't find any information on the amplifier or coil. Also there is a third component that ties into the ignition system that I can identify either.
I'm adding photos, if anyone could tell me the name of the items and a part number I would greatly appreciate it.

Thanks
Troy lawson

In my repair manual for 101 forward control the shunt box is listed as CAV 466/3 and the coil as Lucas type 5 C10 as fitted to 3.5 V8...

Does the last part you show connect to the coil?...if so its a coil filter...

Shippers said:

In my repair manual for 101 forward control the shunt box is listed as CAV 466/3 and the coil as Lucas type 5 C10 as fitted to 3.5 V8...

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Shippers, thanks. Just want to clarify, the CAV 466/3 is the first photo in the line up? Sorry, t posted photos of 2 box type items and want to be sure. Troy

Shippers said:

Does the last part you show connect to the coil?...if so its a coil filter...

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Yes, it connects to the coil, any thoughts where to acquire any of these parts?

My 101 was 24v before I bought it now 12v...but have repair manual that covers both...will scan and post the diagrams tomorrow...if it helps...

Able Enginearing specialise in 101 and a lot were 24v they are who I deal with and will point you in the right direction...Martin is a wealth of knowledge and has helped me out down here in Portugal with parts...he is also involved with a Lancaster Bomber restoration!...

Shippers said:

My 101 was 24v before I bought it now 12v...but have repair manual that covers both...will scan and post the diagrams tomorrow...if it helps...

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Fantastic!

TRY https://www.101parts.co.uk/shop/eng...dlb110-sports-ignition-coil-ballast-resistor/

mystery said:

TRY https://www.101parts.co.uk/shop/eng...dlb110-sports-ignition-coil-ballast-resistor/

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That is Able Enginearing who I deal with...Blanchard would be another to try...

mystery said:

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That doesnt look like a ballast resistor...certainly not the one I took of my 101 it was like the one in your link which is for 12v not 24v...mine was rewired from 24v before I bought it but have repair manual with 24v 3.5 V8 diagrams in it will look later...the manual lists a ballast resistor in 12v section but a coil filter in 24v section in the wiring diagrams so assume there is a difference...

In reply to my last post I removed the ballast resistor as I fitted a new electronic dizzy as when it was converted to 12v they used an old dizzy (possibly rover p6)and I had difficulty getting points for it....

View attachment 215432

mystery said:

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You will notice on that wiring diagram you posted it's not a ballast resister but a coil filter as I said before there must be a difference...

Shippers said:

You will notice on that wiring diagram you posted it's not a ballast resister but a coil filter as I said before there must be a difference...

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Really appreciate all the help, getting closer every day to solving this! Thanks.

Defender 110 Pickup said:

Really appreciate all the help, getting closer every day to solving this! Thanks.

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Going to do a bit more digging tomorrow as have a bit more time...regards Rob...

Looking at the picture it is definitely a wire wound ceramic resistor with a external aluminium heat shroud possible 25 watt or higher and the cable possible green/yellow
which can be confirmed with a quick clean may be the resistor in diagram for the heater motor ,the filter units I would assume are there to eliminate radio noise and interference from the vehicle and those nearby
and would likely have capacitors ,diodes etc a removal of the lid and images would help the next person later on

List of suppressors on a 24v V8 and where fitted on a 101 would think likely same as Defender...all 24v I believe were FFR so would have them...

HAVE A GANDER https://www.militarylightweight.co....016/05/BRIGHT-SPARKS-FOR-LAND-ROVER-v1.03.pdf