When individuals speak about rod bearing failure, the very first thing that involves thoughts is the moment, catastrophic destruction that happens inside an engine with out warning. But generally bearing failure can occur over time, to the purpose the place an engine can run for hundreds of miles earlier than it will definitely blows up. That’s precisely what occurred to this Volvo engine.

Eric from the I Do Cars YouTube channel not too long ago bought his arms on this junked 2.0-liter turbocharged inline-four, and took it aside to see precisely the way it failed. According to the vendor, it was taken out of a 2015 Volvo XC60 that wanted a alternative engine. So no matter this engine is hiding, it isn’t good.

From the skin, this engine seems regular. There’s no gap within the block or exterior indicators of overheating. Tearing into the top reveals some varnished gear and carbon buildup—nothing out of the odd for a direct-injection engine with this type of mileage. But upon nearer inspection, Eric discovers a skinny lining of silver paste within the valleys of the top, indicating bearing put on. 

Sure sufficient, extra of that advantageous metallic paste might be discovered within the oil pan as soon as Eric removes it from the block. He says this engine doubtless ran for some time earlier than truly failing, giving the bearing materials loads of time to put on down and trigger havoc to the remainder of the motor. 

At some level, the bearings had sufficient and failed, spinning on the crankshaft and trashing the motor for good. The third cylinder’s bearings truly spun on prime of one another, inflicting critical destruction. Eric appears to be like a bit deeper, discovering large chunks of metallic within the oil pickup tube. We’re certain this engine sounded simply advantageous till the deadly second when the bearings gave out.