Otherwise you will face problems with AVCS system, high oil consumption, connecting
rod bearing failure and other troubles.
Also, having EJ257 and EJ255, you may face connecting
rod bearing failure, especially after power increase.
Not exact matches
Shavings will be seen in fast
failures, more than likely yours is normal wear of the
rod - crank
bearings and crankshaft over time, this will show no noticeable shavings.
Major issues like
rod -
bearing failure and rear subframe cracks are well - documented and easy to prevent, thanks to plentiful parts and an extremely active owner community.
Knocking, if originating from within the engine, typically will occur if there is a significant mechanical
failure (connecting
rods,
bearings, and so forth).
Typically when this engine makes a noise like this it is due to a
failure in one of the
rod bearings or in the valve train.
A worn connecting
rod bearing will produce a metallic, cyclic knocking noise from the engine and possible engine
failure.