Have had this 766 diesel parked for the last 5 or so years cause coolant was getting into oil.Suspected a sleeve had eaten thru.Didn't need so just parked till now.Put fresh oil in it today, and water in the rad, left rad. cap off.It started almost right away,and started really pushing coolant out the open rad.Let it run for only 2-3 minutes.In that time it pushed all of the engine oil into the cooling system.IS that normal when you have a cavitated sleeve or is there something else going on?Could this be an oil cooler problem?Am going to overhaul this tractor this fall,and am searching for advise. Thanks Jim