Jonh I second that, I've just had the inlet manifold of my car to sort a leak... the top between the heads was totally flat... Yep full of crud two good hand fulls in fact soaking wet and had corroded through the metal heater pipe that runs across the top of the engine. Paul #6463 --- john fredt <hecklerkochgmbh@xxxx> wrote: > > > I was wondering if anyone out there has found a way > to safely fill them in?If not is there at least some > kind of fix anyone would suggest?