GMorg wrote >
> This thread has nothing to do with clutches. In
> a manual transmission vehicle, with the parking
> brake off, the only thing that prevent gravity
> from moving the vehicle is the force required
> to spin the engine. If you park in high gear,
> the vehicle moves fairly easily. If you park in
> first or reverse, the vehicle should be very
> difficult to move. This is a well known
> phenomenon anywhere that has hills and manual
> transmissions.
GMorg, I am fully aware, I was only having a little fun at the expense of the individual who brought up the clutch as the reason the vehicle moved (sorry that wasn't clear but the winking smiley face meant I was basically joking).
If a car really did move due to the clutch slipping (parked in gear without the motor running), you can rest assured that compression really is the least of your issues.
Regards,
Rich - with four vehicles, all with manual transmission.