i seem to have sprung an oil leak from near the starter motor,it is only a slight one(small drops when parked up for a few hours)i am led to think tht its sumthin to do with the oil gauges,which sensor is located near the starter motor and r they easy to remove/refit?it isnt the rocker gaket also?cheers,any ideas,i am convinced its the oil sensor one of 3 coz it was removed the other day,by my mechanic?