I cleaned my valve covers this weekend and was dissapointed just now to see that the part load breather and the oil filler cap both seem to be allowing a small amount of oil to get past. No running, dripping oil but rather a fine film seeped around both. The o-ring at the base of the breather looks very brittle and allows it to wiggle slightly. The filler cap???
Is this common, is there a good fix?