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Just because you haven't seen it doesn't mean it's unusual. I'm very surprised you haven't dealt with it before. I'm also surprised that you are so adamant about being wrong. I'm not trying to win a prize, I'm trying to help others with what I know. You act like I don't have a clue about what I'm talking about, and I'm getting kinda tired of it. We've "known" each other online for 3 years, and it's always been cool, but since about Thanksgiving, you've become a total stranger. That's too bad. Anyway, below is a clipping on oil pump relief valves from Automotive Engine Rebuilding, by James G Hughes (page 481).
