Hi Peter, the locking pin is for locking it on TDC, the manual just tells you to put it in gear apply brakes and then undo crank pulley bolts if that fails isto remove the starter and jam the ring gear. The TDC locking is under the alternator so this has to come off and then remove a plug and insert the Ford tool but you can use a M10 bolt cutdown to 47.5mm from tip to underside of bolt head, but you also have to cut a slot into the head as it goes into a recess. If you want the full process I will mail it to you contact me on nige110162@hotmail.co.uk
nigel
June 2008