On the 1300 Astra there's a sort of hollowy rattly noise thats always been there, which has not gone away after new alternator or water pumps had been fitted. I'm pretty sure it's not the cam shaft, as this has it's own sounds, and this one ones seems further down. So I'm left with the oil pump. Anyone done one of these? Are they expensive?
I have good pressure, but I asume the pump will just let go suddenly? Should I avoid using the car?