Quote:
Originally Posted by notime
Being in gear with clutch fully depressed would have flywheel side of clutch rotating at engine speed and rear friction plate being pressed back toward transmission with linear pressure on the throw-out bearing - I'm not a tech so when saying linear pressure I mean no twisting forces on trans side of clutch but hydraulic rearward pressure on the throw-out bearing.
|
Not quite...
The flywheel/pressure plate assembly is rotating at engine speed at all times. The throwout bearing is pressing against the fingers of the spinning pressure plate to release the friction disc from between the flywheel surface and the pressure plate surface. Therefore, even stopped in gear with the clutch pedal depressed, the throwout bearing is being spun at engine speed. While it's not typically thousands of RPM, it is at idle speed and for minutes of that at a time instead of fractions of seconds during shifts, I'd expect significantly more wear.