Engine Overview and Common Failures
The weight of the 4G13 engine is 135 kg (including accessories). The engine number for the 4G13 is located in the front, at the junction with the gearbox. Throttle wear: The most well-known problem with Orion engines is the high or fluctuating idle speed due to excessive play in the throttle assembly. There are several organizations that sell reconditioned throttle valves. Oil consumption: A significant portion of complaints on forums are related to increasing oil consumption. The main causes are worn oil seal caps or ring sticking. By 200,000 km, piston wear also occurs and an overhaul becomes inevitable. Timing belt breakage: According to the manual, the timing belt is designed for 90,000 km, and many people replace it at this mileage. However, there are numerous cases found on specialized forums where it breaks earlier. Reports mention not only bent valves but even cracked pistons. Other malfunctions: Weak points of this engine include the catalytic converter and not-so-durable engine mounts. Components of the ignition system often cause trouble, with spark plugs frequently fouling in winter. And don't forget about valve adjustment - most versions do not have hydraulic compensators.