This will be absoulutely fine -IF- the piston's on firing stroke, otherwise you'll bend the valves. Also it ain't easy to get down those spark plug wells. I've known engine mounts rip against a flywheel locking tool doing this job and would guess that your conrod might not like it too much at that kind of torque either. You also need to know the rope isn't going to leave and bits behind. On balance, no - wouldn't dream of it. Martin Tell you if you ask. wrote: >I recently recall a debate about methods to get the crank pulley nut >off of our engines. This fellow used an interesting procedure. >Essentially he removed a sparkplug, and positioned the piston about >halfway on the stroke. He then feeds a length of rope into the >cylinder, coiling it as best as he can as he feeds it. Then when >applying loosening pressure to the crank pulley nut, the piston >comes to a stop against the rope, essentially locking the engine, >supposedly without doing any damage. > > To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/