rod bearing

[pug]

What kind of damage can a rod bearing do internally also will replacing rod bearing work or be a waste of time. I think they said it spun the bearing. 1990 2.5. thanks

[jimoshel]

If caught in time there will be no damage. If not replaced and the the motor allowed to keep running, it can score the journal to a point where it can't be ground to specs, making scrap out of the crank. Or it can beat the rod to a point where it breaks, sending broken parts thru the oilpan, engine block and snapping the crank and camshaft. If the bearings are worn and the journals are OK, then replacing them will give you several more miles service. That's what mikes are for.