Check the six-way combination bolts and other newly replaced parts. During the inspection, focus on the head and guide section of the six-way combination bolts. Strictly inspect for cracks or indentations in every part of the thread, and also examine the tooth shape of the six-way combination bolt for any changes. Check for any abnormal pitch, and if any anomalies are found, the bolts must not be used again. When installing the connecting rod cover, a torque wrench should be used. It must be tightened to the specified standard, ensuring the torque is neither too high nor too low. Pay attention to selecting the six-way combination bolts and double-ended studs from the matching manufacturer.