I am swopping motors in a T140 , the oil pressure was going down to 9 psi after 5 minutes of run time and shutting down , swopped the sensor with a known good used one and got the same results , teed the oil pressure port and installed a mechanical gauge with same results and pukked themotor and the pan and it was full of a silvery thick paste , no chunks or pieces , just 3/8 of metallic sludge , going with the Bobct remaned , it was fairly easy getting out except for the front , right side motor mount , and the power Bobtack hoses as I pulled the pump/motor together , motor is suppose to be in Monday-----------anyone seen the silver sludge