165
Firstly, you need to put the tractor in neutral and block the wheels with chocks. Next, lift the PTO housing away from the tractor and place aside. Unplug the PTO shaft and remove the retaining bolt. Pull the PTO shaft out to expose the seal. With a metal punch, carefully drive the seal out. Clean all the surfaces with solvent. Now you can put a new seal in place and tap it in with a metal punch. Make sure the seal is seated, and then put the PTO shaft back in. Install the bolt and reassemble the PTO housing. Your Massey Ferguson 165 PTO seal is now replaced.