The linkage rod Super Dave3 is talking about is the rod that connects to the throttle body actuator and runs down to the oil pump linkage.
It can be a little bit of a bugger to connect that properly to the throttle body when reinstalling the throttle body back into the reed intake boot if you have disconnected it for any reason. In fact, sometimes it will bind if it is connected incorrectly.
Often times when you disconnect the rod, the linkage actuator on the oil pump spins backwards. When this happens, you must be re careful that you spin the linkage actuator back to the correct placement before reattaching it to the throttle body.
If you are going through oil to the point of your reporting, then you need to check this. and if you installed a turbo kit, then you most likely had to remove the oil pump rod.