STD 2007 Manual Diesel Datsun Diesel Engine YD25 Spare Parts Wrecking The engine is working, its problem is the diesel pump. And there is a gearbox with a rattle in third gear only. The cylinder head is clean and a few months ago valve seals were done and valves were lapped. And the cylinder is bored 10, new pistons, and new piston rings. Timing cover and oil pump are new, original factory. Diesel pump, injectors, turbo, and starter are not good and not working. The starter motor has been sold. Air pump is excellent.