simon57

iTrader: (2)

My brother-law's got a fiat uno.4door early model..

he's saying that it spluters when you put your foot in first. and then clears.

Then does the same in second. like fuel starvation.

Im going to look at it tomorrow.

Anybody know about these motors ??

N_Collins

Sounds like dirt in the carb or the diaphram in the vacum unit is split (on top of the dizzy)

Hope this helps

Neil

scoobynut555

Simon, you answer your question in the title. !!

Sorry can't be no help but couldn't resist that one.

Hows the scoob going???

david

Scooby-Doo

I used to have one of these babies. It depends on the carb, some had solex and other had webbers. The solex caused similar issues to your description as seals came loose and was sucking to much air bypassing the jets. I ended up buying a webber and the problem was solved. There is also a summer/winter setting on the air intake (from memery its in the filter case), make sure this is set to summer as you will be getting too much air of the hot manifold otherwise.

To clean the jets take the hole air filter off including all the plastic base and you will see two screws in the middle, unscrew these and take them out remembering which is which and clean them. The bottom piece is the jet that will seperate. If this fails it could be :

Dwell angle (points gap in the dizzy)
Timing
Plugs or gap
Cracked Dizzy
and a few others

If your in Surrey I'm happy to have a look as I spent my whole youth taking them apart.

richieh

from memory these have a fuel cutoff solenoid that activates during decelleration-if its a bit sticky it could not allow fuel flow to restart in between changes-also it may cause cut out on junctions
richie