Originally Posted by Chip-3Door
The idea of using a used one is a good one, its easy to check condition of a secondhand pump but not easy to check the manufacture of a new one.
ok fair play. right excuse my COMPLETE lack of knowledge here. what exactly is there to check over and can bits be replaced? Having never seen one or having no clue about them i dont know! apparently the one in my complete but knocking engine was a 4x4 oil pump which had been "uprated" to high pressure. is it common to do this and uprate?