24370-2E000 Exhaust CVVT Assembly | Hyundai Kia G4NA Engine Variable Valve Timing Camshaft Phaser
The 24370-2E000 Exhaust CVVT Assembly is an exhaust-side camshaft phasing unit used in Hyundai and Kia petrol engines equipped with variable valve timing systems. Installed on the exhaust camshaft, the component adjusts cam timing through hydraulic oil pressure to optimise exhaust valve opening and closing during different engine load conditions.
The 24370-2E000 Exhaust CVVT Assembly is commonly used on engines such as the Hyundai G4NA 2.0L platform, where the ECU controls camshaft phase movement to improve fuel efficiency and emission stability. In the aftermarket supply chain, the unit is also identified as 24370-2E000 exhaust camshaft adjuster, 24370-2E000 VVT camshaft gear, or OEM 24370-2E000 CVVT ASSY-EXHAUST.
Within the timing drive system, this 24370-2E000 Exhaust Timing Camshaft Gear connects directly to the timing chain and works with the oil control valve to regulate camshaft phase angles. Accurate hydraulic chamber sealing and stable locking mechanisms are essential to maintain precise camshaft positioning during cold start and high-load acceleration.
Technical Specifications
| Specification | Details |
|---|---|
| Product Name | 24370-2E000 Exhaust CVVT Assembly |
| OE Part Numbers | 24370-2E000 |
| Alternative Description | OEM 24370-2E000 CVVT ASSY-EXHAUST |
| Engine Platform | Hyundai / Kia G4NA |
| Engine Displacement | 2.0 L |
| Type | Exhaust Camshaft Phaser |
| Warranty | 12 months or 12,000 miles from the date of Ex-factory |
| Packing | Neutral Packing or Customer Required |
| MOQ | 6 pcs |
| Place for Origin | Ningbo City of China |
| Brand | Wellgine |
Manufacturing and Quality Control
For cam phasers such as the 24370-2E000 Exhaust Timing Camshaft Gear, dimensional accuracy and hydraulic sealing stability directly influence camshaft timing behaviour.
Factory control typically focuses on the following areas:
Precision gear machining
- Timing sprocket concentricity inspection
- Tooth profile measurement to maintain chain alignment
Hydraulic chamber sealing tests
- Internal leakage inspection under simulated oil pressure
- Rotation angle verification during bench testing
Rotor movement calibration
- Cam phaser response angle testing
- Locking pin engagement verification at low pressure
Batch traceability
- OE number identification marking
- Production lot tracking for aftermarket distribution
Supply is factory-direct from China with batch manufacturing control suitable for international distributors and engine rebuilding workshops.
Operational Considerations in G4NA Timing Systems
Engines using the 24370-2E000 exhaust camshaft adjuster rely on stable engine oil pressure and clean lubrication channels.
Conditions that typically affect cam phaser operation include:
- contaminated or degraded engine oil
- restricted oil passages within the cylinder head
- malfunctioning oil control valve (OCV)
- timing chain stretch or misalignment
When phase deviation occurs, diagnostic codes commonly associated with exhaust cam timing include:
- P0014 – exhaust camshaft position over-advanced
- P0017 – camshaft/crankshaft correlation fault
These codes often lead technicians to inspect the Replacement CVVT Gear Hyundai G4NA 2012-2019 during timing system diagnosis.
Structural Characteristics of the 24370-2E000 VVT Camshaft Gear
In Hyundai G-series engines, the 24370-2E000 VVT camshaft gear is designed as a hydraulic vane-type cam phaser integrated with the timing sprocket.
Key functional sections include:
1. Rotor and stator chamber
- Multiple hydraulic chambers control cam phase angle
- Oil pressure from the VVT solenoid directs chamber movement
- Rotation range typically between 20°–40° crankshaft angle
2. Locking pin mechanism
- Maintains default camshaft timing during engine start
- Engages when oil pressure is insufficient
- Prevents camshaft oscillation at idle
3. Timing chain drive gear
- Directly meshes with timing chain
- Transfers crankshaft rotation to camshaft through phasing unit
4. Oil distribution passages
- Internal oil channels guide pressurised engine oil
- Precise machining prevents leakage between chambers
These internal structures allow the Engine Variable Valve Timing Camshaft Phaser 24370-2E000 to dynamically adjust exhaust valve timing according to ECU commands.
FAQ
1. What is the function of the 24370-2E000 Exhaust CVVT Assembly?
The unit adjusts exhaust camshaft timing by rotating the camshaft relative to the timing chain drive. This allows the ECU to optimise exhaust valve timing depending on engine speed and load.
2. Is 24370-2E000 exhaust camshaft adjuster installed on intake or exhaust side?
This OE number is used on the exhaust camshaft side of the engine.
3. Can the Engine Variable Valve Timing Camshaft Phaser 24370-2E000 fail due to oil quality?
Yes. Contaminated oil or extended oil change intervals can block internal oil passages and prevent proper hydraulic operation.
4. Is the OEM 24370-2E000 CVVT ASSY-EXHAUST sold as a complete unit?
Yes. The cam phaser and timing gear are integrated and supplied as a complete assembly.
5. Can the 24370-2E000 exhaust camshaft adjuster cause engine misfire?
Incorrect cam phase positioning can affect valve timing and may lead to misfire conditions under certain operating loads.
6. Is the Replacement CVVT Gear Hyundai G4NA 2012-2019 interchangeable with intake cam phasers?
No. Intake and exhaust cam phasers use different OE numbers and rotation calibration.
7. How is the 24370-2E000 VVT camshaft gear tested before shipment?
Bench testing usually includes hydraulic pressure simulation, rotation angle verification, and locking pin engagement inspection.