starter motor

Got a little problem with the starter motor. Turn the key and hear a click but engine doesn't turn over. Got to keep turning the key on and off till the starter motor kicks in and turns engine over. Is it a case of fit a new starter motor or can it be fixed?
Discovery 2 td5 auto

New bush sets are available for about £10 on ebay
http://www.ebay.co.uk/sch/i.html?_f...+repair.TRS0&_nkw=td5+starter+repair&_sacat=0
Done 3 on mine so far - the top nut is a bugger to get off and is a differnet size to the bottom two (13mm bottom and 15mm top if I remember right).
After doing the first repair I didn't bother putting the top nut back on, 200,000 miles later I haven't had a problem. As it's a stud the motor isn't moving anywhere.
Have a search on this site - I'm sure I saw one detailing how to do it and the joy in throwing away the top bolt !!