some of those Anti Siphon valves are aluminum, some are brass. use a deep well socket or a box end wrench before using a flare wrench. do not use an open wrench.
You realize the front timing cover is plastic and they usually do not survive pulling the seal, much less driving in a new one, there is more than one leak location
the issue with the lisle bearing packer is you have to clean it between each use which takes about 2 mintues....... where a dab of grease in the palm of the hand takes 30 seconds to pack the bearing and wipe your hands.
