Here's a pic of the new main seal. The cam shaft seal is exactly the same seal. I just used a small screw driver to pry the old one's out. Be careful not to scratch the surface of the shaft. Tapped new seals in with a small hammer. Installed new water pump and replaced the back cover. Put the new tensioner pulley on but did't put the spring on yet. Set the crank to TDC and the cam to the timing marks on the cam pully and back cover. Ran the belt so that there was no slack between the cam and the crank then ran it around the tensioner and waterpump. I then hooked the spring back up to the tensioner. There's an access hole on the front of the timing cover that lines up with the tensioner bolt. After the motor is run a bit pop the little cover off and loosen the bolt and retighten. The tensioner doesn't automatically take up the slack of the belt as it stretchs. Put the covers back on, crank pulley and new alt belt. Topped up the collant and started it right up.