Moosebob
Registered User
Finally finished my 7.3 rebuild, managed to get it back under the hood, got the air out of my injector lines and it fired it up..... but almost no oil pressure! Mechanical gauge is hooked up at the new turbo, which won't spin freely anymore. Revving it up doesn't help the pressure any and it struggles to rev, due to the turbo not turning I suppose. Before the rebuild I had almost 40psi at a cold start, now I get like 2psi. I pulled the oil supply line to the turbo off and found no oil there, line was clear. Truck starts right up, runs fine, no knocking or ticking..... so oil is at least making it as far as the lifters. When I shut off the engine I can hear the oil dripping back down to the pan. Any ideas what's going on???? Anyone have an oil flow diagram?