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. However typically bearing failure can occur over time, to the purpose the place an engine can run for 1000’s of miles earlier than it will definitely blows up. That is precisely what occurred to this Volvo engine.
Eric from the I Do Vehicles YouTube channel just lately bought his fingers on this junked 2.0-liter turbocharged inline-four, and took it aside to see precisely the way it failed. In accordance with 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 surface, this engine seems regular. There isn’t any gap within the block or exterior indicators of overheating. Tearing into the pinnacle reveals some varnished tools and carbon buildup—nothing out of the strange for a direct-injection engine with this sort of mileage. However upon nearer inspection, Eric discovers a skinny lining of silver paste within the valleys of the pinnacle, indicating bearing put on.
Certain sufficient, extra of that wonderful steel paste might be discovered within the oil pan as soon as Eric removes it from the block. He says this engine possible ran for some time earlier than really failing, giving the bearing materials loads of time to put on down and trigger havoc to the remainder of the motor.
Sooner or later, the bearings had sufficient and failed, spinning on the crankshaft and trashing the motor for good. The third cylinder’s bearings really spun on prime of one another, inflicting severe destruction. Eric seems to be a bit deeper, discovering large chunks of steel within the oil pickup tube. We’re certain this engine sounded simply wonderful till the deadly second when the bearings gave out.
