Hi guys, welcome to East Coast Sailing. I'm Rob & In todays episode, ill show you how to fully rebuild your Raymarine Auto Pilot. You have probably stumbled across the best how to video on how to rebuild your Raymarine ST4000 M2. This unit comes off my Beneteau Oceanis 343 lifting keel which was built in 2006 which weighs 5 and a half tonne. Ill show you the reasons why the unit needed to be rebuilt as the steering was catching even with the drive belt disengaged. Ill show you how to change the drive belt, drive belt clutch, clutch lever, belt tensioner, drive belt motor, bearings, drive belt gears, removal of gear box & cover plates and resoldering the power connector if you have pulled it out. All of these part cost £200 so this will save you between £300 and £520 if you were to buy a reconditioned or new unit. Ill also show you where I purchased the parts from as well as a part diagram. What ever you need to do to get your autopilot working I have got you covered. I used some very basic tools. All you need is an Allen key to do all the jobs and a soldering iron if your changing out the motor. Hope you enjoy and if you learnt something please hit the like button, subscribe and leave some positive comments. Many thanks