200tdi oil pressure

[baron von ledwidge]

Basically i am a series owner not a disco one, but a mate of mine has offered me an engine from his 200tdi discovery that has low oil pressure, he has tried a few things to cure it but with no joy, new oil pump etc.  I was planning on sorting the engine and sticking it in my series and was wandering if there were any common causes for oil pressure drops, bearing in mind the engine will be out of the vehicle what is the rebuild procedure like?
sorry for the broadness of the questions
aaron

[GreedyGibson]

If a new pump has not sorted it i would check the bigend bearings thats what my lack of pressure was 

[baron von ledwidge]

ah cool cool, is that a bad job?  I cant imagineit being the end of the world if its on a bench.

[GreedyGibson]

not too bad i replaced my in the motor all except the rear main but the crank was also shot so replaced the engine.

Mind mine had been filled up with sandy water 

[baron von ledwidge]

Ah wicked well i shal have to wait and see now but its good to know its not too bad a job.  Is there anything else thats worth doing to them while there out of the car?