Is Disassembling the Engine Considered a Major Overhaul?

[Yvette]

Disassembling the engine is considered a major overhaul. Below are the related introductions to major overhaul types: Engine: Replacing the main internal components of the engine. This mainly includes the crankshaft, pistons, connecting rods, cylinder liners, valve components, piston rings, piston connecting rods, valve seat rings, crankshaft connecting rods, piston rings, timing belt (some vehicles use a timing chain and do not require replacement), engine overhaul kit, crankshaft rear oil seal, transmission front oil seal, cleaning the engine water passages, cleaning the radiator, and replacing the engine oil and filter. Transmission: Replacing the main internal components of the transmission, such as gears, gear oil pumps, bearings, seals, locking pins, etc. Frame: A frame major overhaul is only necessary when there is a collision or the frame breaks due to age. Generally, the frame needs to be placed on a frame correction platform for alignment.