Distributor options

Hi all
Just to let you know I went for marelli s810gx has its same height has original hopefully no mod needed to access panel does anyone know how to wire it I have a blue and black wire .do they both go to coil black to neg and will I need vac advance . thanks
 
Hi all
Just to let you know I went for marelli s810gx has its same height has original hopefully no mod needed to access panel does anyone know how to wire it I have a blue and black wire .do they both go to coil black to neg and will I need vac advance . thanks
Got distributor and fits in with no clearance issues but what I didn't realise I need a module so can anybody help and tell me what I need to get this to work module ,coil wiring etc thanks .
 
Here is one thread about that aftermarket distributor I remembered:

I see the original eBay links to it are now dead. But read through the thread and see if there's enough detail to search for it online.

I don't recall any long term feedback about the quality of it. But for the price it might be worth a try to get away from the MM dizzy with the expensive cap.
Do not go this route. Based on the too good to be true thread I tried one. Spent good part of a season trying to get the X to run better, jetting, carb rebuilds, reporting vacucm lines, on and on. Turns out it was this style of Dizzy. Was seized enough that I could not turn it by hand, difficult to turn it with vice grips. Poor 1.5 was loosing most of its HP to turning the dizzy. Put the old one back in and boom runs like a dream. Can't wait for injectors and coil over plugs and an ecu.
 
Do not go this route. Based on the too good to be true thread I tried one. Spent good part of a season trying to get the X to run better, jetting, carb rebuilds, reporting vacucm lines, on and on. Turns out it was this style of Dizzy. Was seized enough that I could not turn it by hand, difficult to turn it with vice grips. Poor 1.5 was loosing most of its HP to turning the dizzy. Put the old one back in and boom runs like a dream. Can't wait for injectors and coil over plugs and an ecu.
Great feedback! As far as I can remember, this is the first time anyone has actually tried it and come back with some results. Although that could also mean the others had no issues with theirs? But that would be typical of inexpensive parts - a lack of consistency...some are good, some not.
 
Hi
Thanks for the reply but this isn't one of those its a genuine marelli bought from a italian parts specialist in the UK just doesn't have the module on the side so just wondered which one i need thanks
 
Hi
Thanks for the reply but this isn't one of those its a genuine marelli bought from a italian parts specialist in the UK just doesn't have the module on the side so just wondered which one i need thanks
Marelli used the GM module on Plex and other systems which has four pins and ground. It requires a heat sink with thermal paste to ensure it can dissipate the heat generated.

I haven’t been able to locate any collateral information about this distributor. My apologies, I am very little help on this.
 
Great feedback! As far as I can remember, this is the first time anyone has actually tried it and come back with some results. Although that could also mean the others had no issues with theirs? But that would be typical of inexpensive parts - a lack of consistency...some are good, some not.
For the groups information this is the distributor than does not turn. Must have started at 500km of use.
IMG_9525.jpeg
 
Hi all
Just to let you know I went for marelli s810gx has its same height has original hopefully no mod needed to access panel does anyone know how to wire it I have a blue and black wire .do they both go to coil black to neg and will I need vac advance . thanks
I'm interested in this mod too, do you know what the difference is between the GX, BX and FX versions? Is the height exactly the same? What's the donor cap that you now need for a side entry as they seem to come with a top entry for Uno use? I'm guessing the pickup uses the same module/coil setup as found on 124 etc which might well be more available. I.e the 4 pin ignition module type with matching suitable impedance coil and as @kmead says the module needs to be well heatsink'ed. The AEI200 coil/ module pack springs to mind as the stock part, but you may well need to build it from separate bits if it's the one.
 
For the groups information this is the distributor than does not turn. Must have started at 500km of use. View attachment 73830
If this style of distributor is a real Marelli made unit , and has the Magneti Marelli symbol cast into the alloy body then they work just fine...

However, as per the "too good to be true" thread, there are poorly made chinese copies being sold online via ebay and some US based vendors...

these are the ones to steer away from as the failure rate is very high. These do not have any manufacturers mark or country of manufacture cast into the alloy, caveat emptor.

SteveC
 
Got distributor and fits in with no clearance issues but what I didn't realise I need a module so can anybody help and tell me what I need to get this to work module ,coil wiring etc thanks .
you will not only need an ICM and its heatsink, you'll also need the correct coil to do the job. (if you want everything to last)

SteveC
 
I'm interested in this mod too, do you know what the difference is between the GX, BX and FX versions? Is the height exactly the same? What's the donor cap that you now need for a side entry as they seem to come with a top entry for Uno use? I'm guessing the pickup uses the same module/coil setup as found on 124 etc which might well be more available. I.e the 4 pin ignition module type with matching suitable impedance coil and as @kmead says the module needs to be well heatsink'ed. The AEI200 coil/ module pack springs to mind as the stock part, but you may well need to build it from separate bits if it's the one.
Has far has i know the 810 gx and fx have shorter body the others are longer mine fits with cap supplied top entry. Thanks everyone for your help just need to order small black four pin module and square coil then ill let you know how it goes.
 
One thing I have learned from my business partner is when swapping out these sorts of components take the time to put similar connectors on both the new parts and the original parts. If you look at the broke dizzy pic I posted with a universal SAE connector. For me to go back to OEM it was a 5 min job. I was only swapping them to get vacuum advance will I was diagnosing a no start issue and was replacing everything starting with plugs and wires. Turned out the PO had installed a Ferrari cam pulley 180 degrees out and that took me a while to figure out.

Someone told me that if you have working original ignition parts or can fix them on these that is always the best. But I also have been converting bike builds to Hall sensor dizzys and coil over/coil near packs. That would be the way to go if you were replacing everything with an upgrade.
 
Hi
Finally got parts together to do this been messing around with my cam change i purchased 4 pin module plus square coil can anybody verify wiring to and from module and best place to mount it am i right in thinking it earths through fixing holes
 
Hi
Finally got parts together to do this been messing around with my cam change i purchased 4 pin module plus square coil can anybody verify wiring to and from module and best place to mount it am i right in thinking it earths through fixing holes
Presuming you have a Plex electronic distributor, I believe this will assist you in wiring it up. Make sure you place the GM module onto a heat sink with heat transfer paste so you don’t burn up the chip. (This is the same paste used for computers so you can get it from one of those sorts of shops)
IMG_2196.jpeg
 
Hi
Finally got parts together to do this been messing around with my cam change i purchased 4 pin module plus square coil can anybody verify wiring to and from module and best place to mount it am i right in thinking it earths through fixing holes
You may want to read through this thread:

If you can find the 124 heat sink and coil you could use that in your install.
 
Thanks for the reply no dont have a plex just the marelli dizzy has mentioned plus module and coil to replace original points system is that ok
 
Thanks for the reply no dont have a plex just the marelli dizzy has mentioned plus module and coil to replace original points system is that ok
Perhaps a pic of what you actually have if we haven’t answered your question.

I would think if you are using the GM/Plex module, it would wire up in the same way as the image I posted.
 
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