F1 clutch 100% worn - but working beautifully

The clutch readout is a "virtual" value and calculated from various operation parameters ("use-history"), but does not give direct information about the actual "real" clutch condition. It is a rough estimate only.

You might get a couple of thousands miles additionally until replacement is indeed necessary.

Stick to that guy, he presumably wants you as a customer, not just today, but still in ten years.

Cheers, Bernhard

 

Fantastic mechanic. Congratulations.

Sent from my HUAWEI P7-L10 using Tapatalk

 

I am on the same boat as you ! Mine read 95% at my last service. Major coming up next summer. I probably will change it at that time for piece of mind -- getting stranded in a Ferrari is a "weird" experience for any of you all who like me have

 

The 355F1 cars routinely went to about 125% and the 360 only to about 80%. The wear scale is a guess by the engineers before the cars ever turn a wheel. Nothing new.

 

I guess I shouldnt have replaced my clutch on my quattroporte when it showed 95% ) But i heard a lot of scary stories about cars becoming a real estate in a traffic jammdue to clutch wear. Although when the dealer replaced it the clutch itself looked normally and only a flywheel showed true signs of wear.

 

It's apparent that the simulated clutch reading is not highly reliable. I was under the impression that it is possible to check actual wear % via visual inspection with a borescope?

Also, isn't there some adjustment available to extend the life of the f1 clutch?

Can anyone verify these 2 points?

 

Yup, on pre-OTO 612s (same clutch as the 456-575) you can look at the T/O bearing guide pin and determine whether she needs replacing or not.

Not sure on the 599 with its twin disc clutch.

 

Thanks Taz. Is there any adjustment available to extend the life of a partially worn clutch?

 

It is helpful to have the PIS checked and adjusted within routine service, see also here:

http://www.ferrarichat.com/forum/144430879-post2.html

 

An expert can set PIS regularly to optimize clutch life.

 

Thanks again Taz.
Just curious - does the SD3 clutch wear % reading include any "real" direct measurement data (i.e. from a sensor on the clutch itself), or is it only based on an algorithm using speed, distance, gear-changes etc? And is there any accounting for PIS adjustments?

Likewise, for brake wear %?

 

The wear reading is based on the at rest location of the clutch sensor from new compared to the at rest position now. No algorithm involved and PIS has no effect.

Incorrect set up at replacement time invalidates the wear reading. The clutch life scale in the computer was based on some guess work programmed into the software and is why different models wear out at different places on that scale.

 

There you have it. Adjusting the PIS may improve clutch action and life, but does not affect what the SD3 says.

 

After reading this thread months later, may be willing to push my clutch a little longer, car works great. Wonder if a dealer will do "manual" measurement of the clutch? What is the going rate for a clutch job on a 612 anyway these days ?

 

My 612 has 47,000 Km and is 13 years old, first clutch working perfect. SD3 reading at 32,000 km in 2012 was 68% left. In my eyes its a matter of how to use it...