Technical Ritmo Abarth Digiplex

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Technical Ritmo Abarth Digiplex

Domo

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Does somebody know if Marelli Digiplex electronic ignition box from Ritmo 105 TC fits to Abarth 130TC??
What other Fiat's or Lancia's use digiplex MED408A?
Thanks
 
Thanks, I bought one 409 just today.I hadn't have time to install it yet...
So it works.It is a good news....
 
hallo, nice to see somebody else is working on Abarth.
I have an problem.After the engine was rebuilt, new compresion rings, head redone..., I can't make the car work normally. Original Digiplex 408 doesn't work anymore, so I replaced it with 406, after that with 409 (I know that it works good on Ritmo), but the car can't go for more than 2200 rpm, and compresion is going out through carbs (blows fire out from carbs).
After sometime I found original Digiplex 408, but it works the same with it too(n)
Do You know what could be wrong???
We also tried to put another set of carbs, but it won't work either.
Cam belts are in fase
Gearbox and that other sensor are working also....
 
Hello.

I doubt the 105 is the same digiplex as the 130. We had to change ours aswell, after the water coolant hose going across the engine top blew, and the temp rose sky high after only seconds (going on the highway). It might have been a coincidense that it failed, but it happened shortly after. The cams "hardening" also got damaged by the overheating, and two exhaust cams wore down to nothing after a few weeks. The top and gaskets were fine though. The cam problem showed as great balls of smoke and boooms firing thought the intake... working against the rest of the engine. Fireballs out through the intake are usually due to wrong mixture, adjustment of the carburettors etc. It's easy to notice on the solex carburettors as the 4 air intakes are red plastic - which melt. The weber version had metal air intake. A wrong ECU might calculate wrong and cause these symptoms.

Morten.
 
You have to take control of rpm sensor S1 and S2 (by Italien: S1sensore elettromagnetico numero giri/min su volano, S2 Sensore elettromagnetico di PMS su puleggia). This parts has to 612 - 748 ohm/20 st celsia!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!. Can you send me your e-mail..I will send you list from manual corrections of services.
 
Thanks for answers guys. Can Ritmo's electrics be plugged in some ECU tester like modern cars???
I'll go to some good electics mechanic to find out what is wrong
Luboš, I'll send You my e-mail in a PM
(y)
 
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