Technical ritmo 130 tc stalls while driving

[Ritmo130TC]

hello Fiat and Ritmo friends,

after mounting a new electric fuel pump, while the old one leaked, i now suddenly have a problem. the car starts ok, after driving 500 metres the car stalls and engine stops. Both swimmer rooms are empty. Looks that the pump cannot hold the fuel level in the twin carburators. ( Solex ADDHE, 40 mm original carbs), carburators are cleaned and have complete new gasket set.

Car has been running on dynojet roller to adjust the carburators for several hours, no problem. The fuel pump had a leakage and therefor replaced with Bosch 12V/ 3 bar pump.

Pressure regulator is old but it operates ok.

I have read some items about this specific problem on a german forum.
But I already tried a lot of things, but everytime the car starts ok, after driving it stalls.

Pump is engaged continuously, I can hear it running, also checked voltage of fuel pump while operating (12,2 Volts)..

Does someone had this problem to? I'm out of suggestions....

Regards Marc

 

[TomKruis]

hi, it seems similar to the problem i have with my strada 1,9 jtd. Also starts and runs fine but shuts down after a short time. They changed the rail sensor, but it still has problems and they are now offering to change the high pressure fuel pump.
No idea if this solves the problem though.

Did you fix your car by now? What was the cause?

 

[varesecrazy]

hi, it seems similar to the problem i have with my strada 1,9 jtd. Also starts and runs fine but shuts down after a short time. They changed the rail sensor, but it still has problems and they are now offering to change the high pressure fuel pump.
No idea if this solves the problem though.

Did you fix your car by now? What was the cause?

Hi and welcome

Confusingly..

There was a 1970/80's petrol car

And a 1990's pick.up / truck.. diesel in your case.

The 1.9 jtd was fiats main diesel from 1998 to 2005
Found in.. punto. Stilo bravo/a marea

Plenty of information on here for that motor

Charlie

 

[s130]

On the 130TC the fuel pump is engaged/disengaged by an oil pressure sensor.

The design is there to prevent engine damage when the oil pressure drops.

I would check that this pressure switch (I think located on the oil filter housing assembly) is working OK and also not clogged up.

On our 130TC I have a bypass switch that we engaged to bypass this pressure switch and allow the fuel pump to fully prime and fill the Solex float chambers with fuel. Once the engine has started we disengage the bypass.

The Solex carbs tend to evaporate fuel quite quickly so when left standing for a while then the engine has to be cranked quite hard to build up oil pressure to enable the fuel pump. Real pain in the butt.

 

[abarth130tc]

I use my car 5 days a week and when its left for a while really is a pain to start . Sometimes to save the battery i wil pull the bonnet and take off the low oil pressure switch to prime the pump . When i am in the car and driving i have the back seat down most of the time and can just about here my pump running which you should also be able to do . In you rcase i would suggest you have a look at the fuel pump relay as this is most likely causing you the problem . Its under you leg beside the auxillary fuse box .Your voltage at the pump should be 13.5volts plus