Have a little faith in my driving
To take the timing belt gear off i drilled 3 holes into the gear inline, from the end of the snout of the crank towards the motor, taking care not to go into the crank. (Dodgy, but be careful its ok). Then i used a chisel and weddged it into the hole created by drilling, and kind of tapped it carefully, till it wedged in the gear, then kept tapping and it split the gear, and opening it just enough to slide off....obviously you kill the gear, but i needed the oil pump.....meh.
It sits on the crank on a pin too, so it wont twist (duh).....