I Have a Seicento sporting 1998 which does a maxium of 64 MPH (fiat say it should be 93 MPH). When i get to 3 1/2 revs it hits 64 MPH if I increase the revs the speed does not change at all.

I think I know what the problem is I just want to know if anyone else works it out.

Thanks

GunsNRosesLover said:

I Have a Seicento sporting 1998 which does a maxium of 64 MPH (fiat say it should be 93 MPH). When i get to 3 1/2 revs it hits 64 MPH if I increase the revs the speed does not change at all.

I think I know what the problem is I just want to know if anyone else works it out.

Thanks

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ok... in which gear? - had over a ton out of mine with no problems... on a private road of course

5th and your speedo is probally out they wont do a ton with out mod

If the revs genuinely increase, your clutch is slipping.

Cheers

SPD

Thats what i think but it been to hundreds of mechanics (other than myself) that do not believe me. i am going to pressure test the clutch this week as i have time off.

GunsNRosesLover said:

5th and your speedo is probally out they wont do a ton with out mod

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Car is modded - speedo read closer to 115, sat nav clocks at 105... sat nav is probably a little out too, so should be around 100-102ish..

rallycinq said:

If the revs genuinely increase, your clutch is slipping.

Cheers

SPD

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:yeahthat:

That sounds about right, all speedos are about 10% out.

Release handbrake on flat, try pushing the car.

Noel

It nothing to do with hand brake or any other brake

GunsNRosesLover said:

It nothing to do with hand brake or any other brake

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Thst fine, as long as you have checked.

You should be able to esceed that speed by back off the throttle a wee bit to allow the clutch to grip before gradually increasing pressure.

Cheers

SPD

Have tried that, i think the clutch is alive because it does not have enough space to fall apart if you get what i mean

GunsNRosesLover said:

because it does not have enough space to fall apart

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If you can detect slip like that I'd suggest it is time to drop the gear box and inspect, you need a mate with car on standby to go to motor factors for parts - as needed.

You dont wand to do more damage.

The mate is useful to help to hold the box steady when you put humpty dumpty back together.

Noel

Too much of that kind of behaviour and the flywheel will glaze over and need replaced too. It will look a pretty shade of blue though.

Cheers

SPD

i got over 64mph monday night with a flatty

Brooky said:

i got over 64mph monday night with a flatty

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What was her name?

Cheers

SPD

rallycinq said:

What was her name?

Cheers

SPD

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Damn - you beat me to it!

GunsNRosesLover said:

5th and your speedo is probally out they wont do a ton with out mod

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Even an 899 will do that. Indicated, of course.

Have got the car ready to go in the workshop but have not got round to taking it apart so to speak,

will probally do it next thursday if i get the chance,

It does not bother me that much tho at least i know im not going to get a instant driving ban for speeding

it was running over 160 kmh line, over 5k revs, but with atypical tyres and 899 speedo in sporting-son noone can find out how fast it is

Ironically, mine did this when i got it, and i found it WAS the clutch by sticking a lot of my friends in my car when i was going to a takeaway, and my mate in the front was at myerscough (Car machanics) and he noticed it straight away... So basically, you'll know if its some electronic curruption, because it will still stick at your 'max speed'...

Try it, you never know!!

Steve