With some S62 motors failing, I feel compelled to report that the M62 community is finding more loose oil pump bolts on V8 E39. I do not know if the oil pump assembly on S62 is similar and nobody has commented on this possibility. A knowledgeable fellow (Electroman) reported yesterday that valve ticking symptoms went away after tightening a 540i pump. This was his post:
"Two months ago my 97 540/6 began leaking oil. The oil pan bolts were loose. As I was tightening them, I noticed it had the factory cork gasket and made a mental note to change it at the next oil change.
Which was today. After I pulled the pan I was surprised to see the oil pump loose. I had read the multiple posts here about it, but figured at 223.5k miles if the pump hadn't loosened up by now I didn't have anything to worry about. Wrong. Funny thing was the bolt seemed tight but the pump freely moved. The two nuts were no more than finger tight. Pulled all three, cleaned, locktite'd, and reinstalled.
As a bonus, the ticking noise in the engine that I thought was to be expected with high mileage is now gone.
Word of warning, the cork gasket was a major pain to remove off the steel oil pan. It was not, however, adhered at all to the aluminum surface of the engine.
I also noticed my pan had a couple of dents in it, I wonder if that is why the pan bolts loosened up initially? I do recall dragging on a couple of speed-bumps, but don't remeber the timing in relation to the oil leaking."
Linear Mode
