故障排查:"What's Wrong with This Engine?"
There was an oil leak.
There was a broken oil seal.
There was a broken oil filter.
There was a broken gasket.
匹配维修步骤Match the steps with correct pictures.
Find the leak source by checking gaskets, seals, or oil filters.
Fix or replace the broken parts.
Clean the engine.
Test the engine to see if the leak is gone.