Neighbor had to work on radiator because of the fan. He had to remove an oil cooler. Now, he gets a hydraulic chatter on some lines after about every 3/4 of a bin full. He gets a warning and I think he said the header will then shut off. This is I think an 07 8010 with flexdraper. He tried loosening the chattering lines to get any air out but hasn't had any luck. No oil filters on a Sunday. Wish I knew the trouble code it was giving for you. He said if he shuts the combine off, it will run fine again for another 3/4 bin full. What do you think. Thanks