the Alfa is re-born!
Join Date: Apr 2010
Location: United Kingdom
My selespeed has been jumpy too and been making a 'reversing'/winding noise recently when moving off but I'm not sure if its the same issue as yourself or not. Maybe my experience can help you. Do a search for Smakys How To on Clutch Rod Calibration..
My clutch rod position had been reading at 29.6 or so in FiatECUscan.
I found a really good indy today who had a pretty fancy Bosch diagnostics kit that sent a wireless signal to a laptop over on a workbench (not sure what software exactly it was running). It had 147 selespeed on it but it wasn't too accurate when giving the clutch position, just said 29, that was it...It did have an option to calibrate but not to bleed..
So, I had already printed off Smakys instructions and showed it to him and we used FiatECUscan to get the reading, got it down to just after 28mm with nut tightened. He then used his own s/w to do the calibration (I was only using free version of FiatECUscan) but it seemed pretty uneventful, none of the clunking and whirring that was supposed to happen but it did say 'Operation completed successfully' on his laptop.
After this the car did make the same said noise when taking off just one or two times but it seems to have disappeared to a certain extent now. Will monitor this and see how it goes, the mechanic seems more than willing to help (best one I've been to, and very capable) and said he would maybe change the gearbox oil next to get to the bottom of it.
Anyone able to answer these questions:
1/ So do you think the winding/reversing type noise I was getting with a jerky take off was caused by the clutch rod position?
2/ Does it matter that we weren't able to bleed the clutch?
3/ Do you think the calibration actually did anything?
Last edited by aopa25; 23-05-10 at 00:04.