Inspection items for connecting rod bolts
Bolt manufacturer - If the engine is found to be running unevenly or making abnormal noises during normal operation, screws, nuts, bolts, and non-standard customization should also be stopped and inspected in a timely manner. Every time it runs 12000km, it should undergo secondary maintenance.
Bolt manufacturers should dismantle the engine oil pan and inspect the use of engine bearings, screws, nuts, bolts, and non-standard customization. If individual bearing clearances are found to be too large, they should be replaced, and the connecting rod bolts should also be replaced.
Bolt manufacturers should inspect newly replaced connecting rod bolts, paying attention to whether there are cracks or dents in screws, nuts, bolts, non-standard customized heads, guide parts, threads, and whether the tooth shape and pitch of the threads are abnormal. If there are any abnormal situations, they should not be used.
Bolt manufacturers - When assembling connecting rod covers, torque wrenches should be used to tighten screws, nuts, bolts, and non-standard customized bolts according to specified standards to prevent excessive or insufficient torque.
Bolt manufacturer - The connecting rod bolts produced should be selected from matching factories.
