Hi Guys
My car died the other day whilst stuck in traffic as if it had no fuel.
Tried to turn it over all ok but would not fire up.
Eventually sourced it down to the finned module attached to the side of the dizzy as it was very hot.

So decided to unscrew it from the body to reduce the heat and hey presto it works a treat.

Problem now apart from it hanging down is that the temp guage appears to only register about 30d even though it is at full operating temp.

I had a look on e bay no sign of any 4 sale and shop 4 parts do not list it so apart from a scrappy any ideas or has anyone got a spare 4 sale, 1991 60s 1108

Thanks
Pete

I have an idea, Pete...
The temp gauge fault makes me wonder if the temperature sender (one wire) was actually relying on the electronic module for an earth... ? weird thought I know, but I just wonder if the module may have been overheating due to a poor earth or some sort of current back-flow...

Will the temperature gauge works normally when you bolt the module back in... maybe clean the ground cable to the transmission, and check that the module's ring terminal is making a good contact on the distributor body.

I think the module is fairly common among the different models of that period... e.g. even a 1372cc Tipo has one... so it's a case of the scrapyard and luck, if you find that FIAT can't help.

Thanks,
-Alex

Thanks Alex knew I could rely on you.

In regards to earthing, the dizzy is full of oil so will clean it up test it.
The car is still cutting out when in trafffic as no airflow to cool the module down.
It does get very hot even when not attached to the dizzy body which of course is hot itself so I guess it is f**ked.

So far I have been lucky where it dies as I can get tot the side of the road on a coast.
Need the car 4 work so cannot do without.
Mot due next month hoping it passes as it is a great liitle workhorse.
Pete

Peterg said:

Thanks Alex knew I could rely on you.

In regards to earthing, the dizzy is full of oil so will clean it up test it.
The car is still cutting out when in trafffic as no airflow to cool the module down.
It does get very hot even when not attached to the dizzy body which of course is hot itself so I guess it is f**ked.

So far I have been lucky where it dies as I can get tot the side of the road on a coast.
Need the car 4 work so cannot do without.
Mot due next month hoping it passes as it is a great liitle workhorse.
Pete

Click to expand...

If the dizzy is filling up with oil, then that could be the source of your problem :idea: The oil could be affecting the ignition pick ups, and maybe taking it off the dizzy is allowing some of the oil to drain out.

Either way, just change the two 'o' ring oil seals on the distributor unit and that should stop the oil leaking. Might even stop the poor starting problem!

See what you are saying however it is coming from the rocker cover been weeping for years.
My engine bay is not as shiny and polished as most of the guys here.

The oil is more of a gungy covering.
I regularly check the inside od=f the dizzy never any oil just dust .

What I need is some good old british summer weather to keep it cool until I replace it.
Cheers
Pete

Peterg said:

...has anyone got a spare 4 sale, 1991 60s 1108...

Click to expand...

Hi Pete,
:idea:
I have a spare one I would sell .

It’s the original from my 999. I sourced a spare distributor (off Spam0r https://www.fiatforum.com/gallery/showphoto.php?photo=3667&cat=500&ppuser=6957 ), cleaned it up and fitted when I got my hands on an o-ring.

There is nothing wrong with it apart from currently being in many pieces at my old flat. https://www.fiatforum.com/gallery/showphoto.php?photo=4394&cat=649

I could rebuild, or sell parts .

I can’t remember if there are any numbers stamped on the chip, but I recall there are some difference between the 999 and 1.1 fire distributor - Will pick up on Monday and have a look

Regards All,
Louie Bee.

Cheers Louie
I would be interested in the finned module part.
Mine is the 1108cc fire engine hopefully they are the same I am sure Alex will advise.

Thanks
Pete

Yes, module should be the same, so good idea to get Louie's.

If swapping the whole distributor, theoretically there may be some difference in the advance weights lurking inside the bottom of the distributor, but practically, I doubt there would be any noticeable difference.

Thanks for the kind comments Pete, but I hope you get your Uno reliable again soon!

-Alex

You have me confused!

You originally said:

Peterg said:

the dizzy is full of oil so will clean it up test it.

Click to expand...

And then said:

Peterg said:

I regularly check the inside od=f the dizzy never any oil just dust .

Click to expand...

!!!!!!!

Sorry phrased it wrong I meant the outside was covered in oil and this may affect the earthing of the module.

Today I took the whole thing apart and cleaned up the contacts aswell as the oil on the dizzy. Replaced it back on the dizzy body.

Have not had a chance to test it in traffic yet.
Will report back but I guess a new unit is needed.
Pete

Thanks Alex

I have had picked up my box of Uno tricks tonight.

There are 2 sets of stamps on the filled module - BKL4A by the logo, and 2423D on the flat end opposite the connections.

Pete, you have PM .

Would be worth getting the distributor O-ring too (if you can lay your hands on one .

I think the part number is on here somewhere.

Regards All,
Louie Bee.

Update
Got a replacement from Louie today (thanks) and installed it, started first time drove for about a mile then cut out, waited a few mins started again but stopped even sooner so had to limp home stopping all the time.
The module is getting very hot in a short space of time.

Does anyone know why they get so hot??

I am going to try my old one tom as it was getting me going with the heater on full blast for a good distance until I hit stationary traffic.

Do you think it could be another duff module or what is the root cause of this problem.

Thanks
Pete

Hi Pete,

Glad you got the module.

I can 100% - hand on heart say the module and pickup plate I sent never gave me a single problem.

Sorry your still having problems . What condition are your rotor arm, dizi cap and plugs and leads in .

Kind Regards,
Louie.

Pete, if the module is getting really hot then it could be there is a short in the wiring somewhere connecting it. Double check all the connections are clean and making good contact. Also, my Uno module never gets noticeably hot so that doesn't sound like it should happen.

Make sure any earth wires are connected properly, as a poor earth will often cause an electrical component to overheat.

Hope you get it sorted soon!

Root cause could be the item that the module is switching - the ignition coil! It's not very likely, but it's the next thing that I would replace.

Also check your plugs and leads, since we now know from another forum experience that arcing between the leads can cause module problems. Maybe run the engine at night and look for fireworks

BTW Louie is very conservative when making assessments of condition, so I'm 100% confident that he didn't have problems with it.

-Alex

I have taken the dizzy apart and cleaned the components.
Installed my old module and the car is running well now has not stopped yet.
The module is still getting very hot in fact too hot too touch but is still running.
Pete

Update
All is working well after taking your advice to clean up all the electrical couplings.
No stalling in traffic although the module still gets hot all is good.
Anyone wanting a module give me a pm.
Thanks guy
Pete