Well, i need to replace one of my motor mounts and i have no engine hoist, i was considering placing the jack on the closest rim of the harmnoic balancer on a wood block(to stop denting) to get it just barely high enough to slide out the motor mount. My motor is professionally built and has never been ran before. Would this hurt anything? An engine hoist is really out of the question anytime soon and this is my only option because putting the jack to the oil pan is just asking for trouble. I'm trying to be up and running by this weekend. Thanks for the help guys.