Interesting Enzo, particularly post No.3. There are some unscrupulous garages that use the SD to tell the system it has a new clutch when it doesn't. Out of range PIS readings are a pointer towards this.
Only heard rumours Enzo; talking to people about changing the clutch myself there seems to be a school of thought it would or could self set and this seems to be what was alluded to... Good find though thanks
Enzo, PIS stands for Point of Initial Slippage, it is also referred to as the KISS point, or Touch Point.
the value of, for example, 4.7 or 5.0 would be in millimeters.
The diagnostic tools used to adjust the PIS go through a procedure where the system carries out a series of clutch opening and closing cycles automatically,
with the gearbox in neutral, during which time data is gathered needed to calculate the touch point (PIS) correctly.
The operator will see a graph showing the current PIS position with 2 reference curves indicating the tollerance range within which the touch point curve must be located.
There is an interesting thread on Club Scuderia, which refers to an auto-pis adjustment procedure for a late 2000 F1 360...
http://www.clubscuderia.co.uk/forum...o-PIS-setting/page2&highlight=360+f1+auto+pis
I am in not suggesting anyone should follow the above, but this is the first time I have heard/read that such a procedure exists.
thank you Enzo, so this will / could be a part of the issue with the PIS being way off. I'll get the garage to confirm what my setting is
interesting thread - sounded interesting to the point I was about to get my keys, but when it said about stop / starting the car 5 times decided not to - surely thats not a good idea when cold. As Miles said post 3 was interesting point.
Really???
I can get my head around the clutch parts, but new gearbox? I too would be thinking about a second opinion.
Sorry for your woes.
just an update
been told it needs a new gearbox, clutch, bearing and flywheel - WTF did I do to break all this
oh and a damage gearbox heat shield not forgetting the 20% VAT which could be the cost of another clutch
Enzo, any chance you can get it reconditioned instead of a new one..??
My first 4200 had a new gear box fitted at 14,000 miles, the cost £6,067
I had a bill for my first Maserati of £8500 for a replacement gearbox but that was from the main dealer under warranty