nissanfanatic wrote:As long as compression checks out. leave well enough alone.. There is no sense in tearing that engine apart and messing with stuff if it is in good working order.
YES ---definitely--There is no need to start tearing apart the motor if your not going to hone, measure and put everything back to spec. You can not just replace the rings because there is not enough hone left after 168K to break the rings in properly. You also don't know if the cylinders are still round.
Do this--- If the compression is good--- replace any leaky seals and shim the spring in the oil pump (more oil pressure) and that's it!!
Keep it 200-250 and you will be ok (I know there are people running more on stock) but keep in mind that it has 168K and you need to ensure some long term reliability.