A spun bearing can destroy whatever it is spinning with. It can ruin the crank journals along with the rod/main it is in. Also, a spun bearing doesn't just happen out of nowhere for no reason at all. It is mainly caused by an oiling problem. If it spins inside of a main cap, most cases will need to be line bored and outfitted with over sized generic bearings. Sometimes getting a replacement long block is cheaper.yellow_jacket wrote:Rebuild it yourself or have someone rebuild it for you. It's better than spending $1500 to have a used motor that may or may not be good shipped to you.
No Argument there. I think I spent $1600 just in parts and machine work to get my Prelude motor reworked when it had a spun bearing. I had to replace the crank and one of the rods. It will depend a lot on what the person was doing when the bearing spun and how much they ran it afterwards. I have saved quite a few motors. It can be costly, but it sure is nice having a fresh motor that I know exactly what is in it and what shape it is in.ItzGenX wrote:
A spun bearing can destroy whatever it is spinning with. It can ruin the crank journals along with the rod/main it is in. Also, a spun bearing doesn't just happen out of nowhere for no reason at all. It is mainly caused by an oiling problem. If it spins inside of a main cap, most cases will need to be line bored and outfitted with over sized generic bearings. Sometimes getting a replacement long block is cheaper.