Can the Engine Start If It's Seized Up?

[AmyFitz]

The phenomenon of engine seizure is when the generator stops rotating, but the engine can still start after being seized. There are two scenarios of engine seizure: 1. Piston and cylinder liner seizure: Causes: Engine overheating due to severe lack of coolant, thermostat jamming, fan belt damage, lack of lubrication on cylinder walls, etc. 2. Crankshaft and bearing seizure: Also known as 'bearing seizure'. More than 95% of the causes are mechanical failures, usually due to poor quality of the crankshaft and bearings, poor smoothness of the journal and bearing surfaces, especially in vehicles that have undergone major repairs and had bearing replacements. If the grinding and scraping work during the major repair is not meticulous enough, the fit between the shaft and bearing after installation is poor, with too small a contact area to form an oil film. Additionally, if there is a gap on the back of the bearing, the alloy and the bearing cannot fully adhere tightly, leading to loosening and movement, which can block the oil hole, interrupt oil supply, and result in dry friction.