Just wrapped up my brothers LLY HG job. Arp studs heads checked and he has also loosened the nut on the oil pump so we fixed it at the same time. He ran the truck for maybe 2 minutes after he lost oil pressure as we were planning to do the HG that weekend. We got it all back together and started it up, ran fine for 5 minutes and started making a whining or whizzing sound. Traced it too the turbo, which when we pulled the mouthpiece has excessive play. He of course said he checked it when he had the truck apart but I would think that there is no way it went bad in literally 5 minutes. I'm guessing it was gone from the nut coming loose on the pump. The line to turbo has lots of oil (currently all over myself) and we are planning to swap another turbo on here now. Just didn't know what everyone's thoughts are on the turbo going bad that quick in truck vs being gone from the lack of oil pump prior to this
