Hi all, new to me 2002 6x4 FD620D powered, great shape and runs well. Getting what appears to be and smells like burning oil outside the exhaust manifold seams. No smoke out exhaust pipe just seeping from seams. I believe the engine was over serviced so I removed excess oil and it did help, but still have some lingering smoke issues. Had a small issue with overtemp light but corrected that by bleeding and adding coolant. Machine runs great otherwise, it's been well cared for. Any ideas are appreciated?