If the speedo is wrong but the distance ok, the problem is in the speedometer part of the instrument.
If also the distance is wrong, the problem is most likely in the cable.
Here in Breda is a company that installs tachographs in trucks. They also repair, service and sell instruments for cars such as speedometers, rev counters, Halda tripmeters etc etc. They use the small boxes with gearwheels to adjust speedometers / odometers.
Fulvia Speedometer reading too slow
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Thibaut
Re: Fulvia Speedometer reading too slow
Hello all,
back on the road with my fulvia,
first thing i did is a trip along a nice straigh road for 10 km, to test my speedo instrument, after having checked again the cable (and its strange protection in two parts, separated near the brake master pump... is it the same on all S1 fulvia ??).
yes, the trip counter is rather good : let's say within the 4 % error (with my 3% smaller tyres)
BUT : I estimate the needle to give way too much speed, at least +45 % at 80 km/h (giving then an optimistic 125 km/h !)
Do I have to check anything else by myself, or decide to send the precious instrument to a specialist ?
back on the road with my fulvia,
first thing i did is a trip along a nice straigh road for 10 km, to test my speedo instrument, after having checked again the cable (and its strange protection in two parts, separated near the brake master pump... is it the same on all S1 fulvia ??).
yes, the trip counter is rather good : let's say within the 4 % error (with my 3% smaller tyres)
BUT : I estimate the needle to give way too much speed, at least +45 % at 80 km/h (giving then an optimistic 125 km/h !)
Do I have to check anything else by myself, or decide to send the precious instrument to a specialist ?
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Paul de R. Leclercq
Re: Fulvia Speedometer reading too slow
Hello Thibaut.
Yes the cables were in two parts on the early cars, joined by a little rubber bladder for want of a better word. I have no idea why this was done!
Regarding your speedo error, certainly if the odometer is more or less correct, then there must be a problem with the mechanism.
If the problem is terminal, then I am sure that a specialist could either fit new parts inside or adapt the more common 1.3 type to suit.
Paul
Yes the cables were in two parts on the early cars, joined by a little rubber bladder for want of a better word. I have no idea why this was done!
Regarding your speedo error, certainly if the odometer is more or less correct, then there must be a problem with the mechanism.
If the problem is terminal, then I am sure that a specialist could either fit new parts inside or adapt the more common 1.3 type to suit.
Paul