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I installed a chrome aftermarket valve cover breather on me 76 Supercab's 300 and in the space of a day or two of driving, it has already filled with oil, and is spewing it out all over the valve cover! I installed a new PCV valve at the time, so I'm pretty sure it's drawing enough of the fumes out. Has this happened to anyone else? What do you think is a viable solution?
Yeah, I checked it for vacuum, it's pulling just fine. For some reason I think that the breather is just filling up real quickly. I cleaned it out yesterday again and drove it about 100 miles last night without it spewing oil on the cover.
I'm thinking of going back to the stock setup with the emission tube leading to the air cleaner.