I have a lister SL gen set but have found out that the winding in the generator have a fault. the gen set I D plate is to badly scratched to make out much. Could be OLSENITZ is the make. 8.7 could be the kva rating but it seams high, with 12v and 240v marked. It is such a beautiful piece of engineering that I don't want to throw it. has anyone any idea what it is or where to get a replacement. it bolts straight onto the flywheel, so it is part of the engine. ? the rewinding of the core could repair it, but its to expensive and there may be more on the case, it looks like the core has hit the sides.