I've changed all o rings and lubed with silicon spray, non damaged I think, I was very careful. Previous owner replaced the house clamps, I'll check the one going to the tank. All new clear lines and new rubber on the suction side going to the intake hard fuel line in engine bay. I've turned the engine by hand and it's really hard, I'll double check like how you said. I get unburned fuel spraying from egr hole so I'm assuming the injectors are popping.