I know what the grinding noise is.... It turns out that my starter was bad. It spun, but not with enough torque to engage the clutch properly. The caused it to bite and skip sounding like a grinding noise. The problem is that this can be mistakenly diagnosed as a faulty starter clutch. My mistake as I ended up replacing one thinking that it was the problem. I am getting a new starer today at cost price with no labour charges as the dealer was to blame for the mis-diagnosis. I am ok with that as the starter clutch that was pulled out had considerable wear on it anyway. Live and learn!!