I recently bought an R- reg Vauxhall Vectra with low mileage. I got in for a good price because the oil pump had seized up and ruined the engine. I bought a replacement short engine and rebuilt the engine using the original top end. The camshafts were in good condition so I saw no problem. That was until I started it today for the first time and the top end rattled badly. I ran the car for 5 minutes to circulate the oil to the tappets but this did not help. Does the oil pump failure automatically ruin the hydraulic tappets? Any help or advice would be greatly appreciated.
