[john walker's workshop]

occasionally you get lucky and some of the studs come right out without having to heat the case. but some usually don't. then you would first have to clean the debris out of the threaded holes and run a cleanup tap through the threads and blow them out with air in order to have an easy time installing all the new studs. the P+Cs would be in the way for that. if you really need to remove the P+Cs as a unit, position the engine on Z1, which places #1 and #4 pistons all the way up. start with those two. the rest will be obvious.