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I mentioned in my first post that I had only looked at the HPOP from the rear of the engine--pulled off the doghouse and shined a flashlight under the turbo onto the HPOP--but I could only see a drop of oil on the rear of the pump. It was right below the big opening with the retaining clip next to the rear plug. Since the leak isn't bad enough to drip constantly while idling I'm having trouble finding a "smoking gun". I seriously doubt that it's leaking from the retaining clip opening as that's very rare from the research available here--I think the oil is dripping off there because its simply the lowest point on the pump--but as I said, I haven't had a good enough look to conclusively identify the source. The extension mirror is a good idea (why didn't I think of that?) so I'll pull off the intake plumbing and have a look see. Thanks.
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