DigitalNomad
New member
- Joined
- Jun 23, 2009
- Messages
- 54
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- 11
Hey folks!
I have a 1994 Fiat Uno 1100 Fire (1108cc I thinks), was assembled here in South Africa by Nissan. The carburettor resembles the Weber 32 TFL as featured in the supplement section of the Haynes manual (page 13.62). On the side of the carb it says 27 TFL 251.
I just got some starting troubles all sorted out and some maintenance out of the way and was hoping that perhaps someone out here could help me out with a diagnostic of a problem I have with the idling.
It has been doing this since I got it and I just cant seem to figure out why. The symptoms are simple. When I rev or accelerate and take my foot of the accelerator, it is as if the idling takes longer than what it should to return to normal idle speed (about 3 to 4 seconds)...in other word I can rev it slightly and instead of going Woom-Woom! It’l go woo-oooooom kind of slightly continuing to rev on its own a bit. I have had someone sit in the car to pulse the accelerator and watched what the cable and throttle lever does – thought it might get stuck or something, but no, when the pedal is released, the cable relaxes and the throttle lever instantly swings back to rest on the idling screw, yet at this time, the idling is still slowly declining and is not instant like with other cars I have had.
When I step down on the accelerator, it responds instantly but when I take my foot off of the accelerator, it takes a bit of time to come down to normal.
This is kind of annoying and even when changing gears, I can hear that the revs are still high when I change although my foot is off from the accelerator pedal. It takes about 3 to 4 seconds to slowly decrease all the way to idle speed.
The timing is set to 10 degrees BTDC as per Haynes manual and I have even fiddled with the mixture screw to no avail. Come to think of it, on page 13.13 Haynes manual, there are 3 different timing settings depending on what distributor it has, currently mine is set to 10 degrees, could this possibly be wrong, how do I identify my distributor?
My idle screw is currently set to its max, i.e. screwing it out more will not make the car idle slower as the throttle lever does not move further.
Is there someone out there who knows why this is happening and who could point me into the right direction to solve the symptoms. The mechanics down here, well, let’s just say that calling them sharks would be closer to a compliment, it really is bad and I have been taken on some very expensive “rides” with them lately.
Warm regards.
I have a 1994 Fiat Uno 1100 Fire (1108cc I thinks), was assembled here in South Africa by Nissan. The carburettor resembles the Weber 32 TFL as featured in the supplement section of the Haynes manual (page 13.62). On the side of the carb it says 27 TFL 251.
I just got some starting troubles all sorted out and some maintenance out of the way and was hoping that perhaps someone out here could help me out with a diagnostic of a problem I have with the idling.
It has been doing this since I got it and I just cant seem to figure out why. The symptoms are simple. When I rev or accelerate and take my foot of the accelerator, it is as if the idling takes longer than what it should to return to normal idle speed (about 3 to 4 seconds)...in other word I can rev it slightly and instead of going Woom-Woom! It’l go woo-oooooom kind of slightly continuing to rev on its own a bit. I have had someone sit in the car to pulse the accelerator and watched what the cable and throttle lever does – thought it might get stuck or something, but no, when the pedal is released, the cable relaxes and the throttle lever instantly swings back to rest on the idling screw, yet at this time, the idling is still slowly declining and is not instant like with other cars I have had.
When I step down on the accelerator, it responds instantly but when I take my foot off of the accelerator, it takes a bit of time to come down to normal.
This is kind of annoying and even when changing gears, I can hear that the revs are still high when I change although my foot is off from the accelerator pedal. It takes about 3 to 4 seconds to slowly decrease all the way to idle speed.
The timing is set to 10 degrees BTDC as per Haynes manual and I have even fiddled with the mixture screw to no avail. Come to think of it, on page 13.13 Haynes manual, there are 3 different timing settings depending on what distributor it has, currently mine is set to 10 degrees, could this possibly be wrong, how do I identify my distributor?
My idle screw is currently set to its max, i.e. screwing it out more will not make the car idle slower as the throttle lever does not move further.
Is there someone out there who knows why this is happening and who could point me into the right direction to solve the symptoms. The mechanics down here, well, let’s just say that calling them sharks would be closer to a compliment, it really is bad and I have been taken on some very expensive “rides” with them lately.
Warm regards.
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