If you’re doing this job you might as well replace the suction manifold. If not the pump as well for extra insurance. Not like you’re going to be dropping the oil pan anytime soon
Detroit Diesel should recall and update this oil seal system on the DD series engine oil pickup system with a design that doesn't have seals that go bad and destroy the engine! This is now a well known defect in the DD engine series, before it was a well known issue the engines would regularly die from oil starvation. A solid metal interconnection can be used for transferring the engine oil from the oil pan into the engine's oiling system. This would be an entirely different design than what is currently used. After experiencing catastrophic engine failure from a bad oil pickup tube seal system, switching to a an entirely new design that doesn't use rubber oil seals, even with having to do some light machining to the block in situ to except a metal connection, would restore confidence in this DD series engine line. The DD engine appears to have an issue with oil seals going bad, but they result in non catastrophic external oil leaks to outside the engine housing such as around the rocker arm box. If the engine oil pickup tube oil seal is bad then likely all the engine oil seals are ready for replacement.
@@Reeldeal818 From engine oil starvation or oil failure an engine typically seizes up if not caught in time. Catastrophic synthetic engine oil failure isn't really possible and such a situation is almost certainly from sabotage. My experience with a Volvo 240 car engine running Amsoil was it started to run rough and then acted for a few seconds like the ignition was going out it wasn't firing smoothly then the engine stopped. I put the car in neutral. I was able to crank the engine, but it didn't want to start. It was towed to a Volvo dealer and I got a call from the mechanic asking what had happened and he then gave me the bad news the engine was seized. My guess is the crank bearings were so wedged up that the engine really didn't have enough torque to turn it over at some points and that would effectively keep the engine from firing normally. That situation might explain the last 10 seconds of my experience when the engine was still turning. Even if synthetic engine oil were never changed the engine would just have excessive wear.
The sudden catastrophic engine failure has to do more with the oil suction part being made out of plastic and breaking if not replaced around 500k miles. The o-rings also go bad on the tubes, but will not cause sudden catastrophic failure. They will lower the engine oil pressure, which will eventually trigger an alarm code for low oil pressure. This wouldn’t necessarily damage the engine immediately as apposed to the oil suction part breaking.
