the car is a 1993 240 wagon in which i have replaced the engine due to low oil pressure being the result of a broken oil pump and continued driving (crazy isn't it)

anyway i have the problem engine out and on a stand.

this engine while driving after the pump broke never had ANY rod or bearing sounds at all. in fact it sounded great.

a mechanical gauge revealed at hot idle 3-5psi oil pressure and at 2000rpm around 30-40psi. the oil pressure light malfunctioned which is why the owner never new he had trouble. even after driving this car with a repaired oil light it came on at idle only.

nuff said.

the pan is off and the rod bearings reveal wear towards but not into the copper BUT the crank is smooth and shiny at all points where the rods connect.

the mains are worn but not to the copper and the crank is smooth and shiny.

my question is: based upon this data can i replace the main and rod bearings without sending the engine to the machine shop?

what about intermediate shaft bearings? is this normally a problem?

the cam journals look good with no scoring.

for the miles that were driven post oil pump break i can only assume oil was delivered via splashing yet the top of the engine does not appear to look oil starved.

anyway, informed feedback appreciated