Plan on replacing the seal that goes around/behind the harmonic balancer i.e. the thing that has the timing marks on it. The seal is driven into the cover. You will also probably find that the surface of the balancer that rides on that seal is corroded, this of course wears on the seal and the new one will also leak in short order. It is a good idea to clean up that surface, it should be like a mirror. Depending on how bad it is, this either means cleaning it up with some emery cloth, turning it on a lathe (not very much!), putting a sleeve on it, or just replacing it. I see the same problem all the time on axle flanges, but since the axle oil level is below the level of the seal, and no appreciable pressure is involved, axle seal leakage is not usually too much of a problem. Dave Swingle --- In dmcnews@xxxxxxxxxxxxxxx, wmack <wmack@xxxx> wrote: > This summer I plan on fixing my engine so that it doesn't leak oil anymore. > My plan right now is to replace the Timing Gear Cover gasket and the Rocker > Covers gasket.