Getting Rid of Some Oil Where it Should Not Be   The last time I was down at Don's, he commented on the smell of burned oil in the engine compartment of my car, and noticed that there was oil around the spark plugs on cylinders 2 through 7.  He told me that this is a common problem in these engines because the holes for the bolts for the rocker arm shaft supports are drilled all the way through into the spark plug cavities, and oil tends to seep down through the holes and get burned by