Hi Tim,
I hope things ll not be difficult and now I also have the repair manual in English (thanks to Bastien). Flo was telling me that it may be mere magnetic switch at fault and if he is right then, will gentle tapping on the starter may dislodge carbon particles inside the switch and it may start working?
I found two pictures from the manual which are related to removal of the starter......27-451 and 10-1068. I will get cardan joint. Can you tell me about the two rear aggregate-carrier bolts and which picture from the manual you may refer me for these?