Anyone ever drop a glow plug down a pushrod cavity? And, if I end up not fishing it out soon, will it do any harm leaving it there as long as it is not interfering with lifter and pushrod action? I seem to think that is the valley between the two cylinder banks. I sure don't want to pull the head if I don't have to. I've used two different magnets (the glow plug is not magnetic at the tip but is at the rest of the body, so it will turn sideways if the magnet grabs it. My next plan of attack to remove the hood (it is the last cylinder next to the firewall on the driver's side). Any ideas?