Ok so I have a 1978 Datsun 280Z. While driving the battery was not secured correctly and ended up colliding with my valve cover putting a hole in it. I got the car home popped the hood and noticed it. Immediately I took off the valve cover and cleaned out the shavings with a wet vac, toothbrush, and magnet. My question is with this little hole do I have to take apart the engine and clean every nook and cranny.