I get a bit of oil pooling in my injector wells (not Black Death)! I've had to install a timesert in #1 injector (12mm by 1.5) and the Mercedes dealer apparently installed a helicoil on #2 (also a 12mm by 1.5 bolt) the one time they worked on the van (and left me with 5 other problems to fix!) It is not as bad a problem as the leaking valve cover gasket that they improperly installed or the two coolant leaks (one clamp overtightened and the other not installed) but does anyone know of a fix short of getting a new Head? Thanks