Hi, What would cause this much sludge in the raditor, 66 Oldsmobile 425. I surley thought the motor would of been stuck, been sitting in the car for 12 years without a carb or distributor, but it rolled over by hand. Draining the oil first out the oil pan was about 4" of water ou: But the water never got high enough to touch the crank or bearings. Bruce
Water runs right down into Olds engines through the distributor hole. No idea what would cause that sludge. Black mold?
