Talking about engine overhaul every day, what items are included?

Mechanical parts: overhaul package, a set of valve intake and exhaust, a set of piston rings, a set of cylinder liners (if it is a 4-cylinder engine), two thrust plates and four pistons.

Cooling system: water pump (water pump blade corrosion or water seal leakage), engine water pipe, large circulation iron pipe, small circulation rubber pipe, throttle water pipe (aging expansion must be replaced).

Fuel part: upper and lower oil rings of fuel injector and gasoline filter.

Ignition part: replace the high-voltage line if it rises or leaks, and the piston will catch fire.

Near air part: air filter,