I saved this thread to My Notes so if someone else has the same problme I can post it for them; but, while I remember reading them I had never saved any of the Threads/Posts where changing the O-rings raised the idle Oil Pressure.

I also remember reading many Years ago that the NA Engine Oil Pumps had problems with the Relief Valve Springs and the Relief Valve but I did not save any of those threads either.

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84 300D, 82 Volvo 244Gl Diesel