Hnav tsis xws luag: Cov khawb ntev ntev tshwm sim ntawm daim tiab piston, feem ntau tshwm sim los ntawm lubrication tsis zoo lossis impurities.
Ntiv nplhaib Groove Carbon Deposits: Tsis tiav combustion tuaj yeem ua rau lub nplhaib piston sticking, ua rau txo qis zog.
Sab saum toj Erosion: Ntev ntev - kub ua haujlwm yuav ua rau pitting ntawm lub piston saum npoo.
Loose Pin Holes: Manifests raws li lub suab khob; hloov raws sij hawm yog tsim nyog los tiv thaiv lub tog raj kheej cov qhab nia.
