Well without going word for word from the manual, the quick and simple version is this: Measure the distance from the timing chain cover to cam gear through the sensor hole. Keep rotating the engine until you see a difference. The raised portion that ate your last sensor obviously will be less distance in. Half of the gear is raised and half isn't. A brand new sensor will have a small rib on the face of it. Install the new sensor until that rib just barely makes contact with the RAISED portion (least distance in) of the cam gear. The rib will be removed on the first turn of the motor and will provide the correct gap to the cam gear without breaking the sensor off.
Buy a manual, they're worth every penny...