Nissan GTR R35 Chain-Timing CAMSHAFT 13028-JK20B

The Nissan GT-R R35 is renowned for its high-performance engineering, including its sophisticated engine timing components. The chain-timing camshaft system in the R35 GT-R refers to the timing chain setup that synchronizes the rotation of the camshafts and crankshaft, ensuring precise valve timing for optimal engine performance.

Key Aspects of the Chain-Timing CAMSHAFT System in Nissan GTR R35:

1. Timing Chain System:

   • The R35 GT-R uses a timing chain rather than a belt, which is designed for durability and longevity.
   • The chain connects the crankshaft to the camshafts, maintaining synchronization between engine rotation and valve operation.

2. Camshaft Drive Components:

   • The system includes timing chains, chain tensioners, and guides to keep the chain tight and properly aligned.
   • The tensioners are hydraulic, automatically adjusting to maintain correct tension and reduce slack.

3. VTC (Variable Valve Timing Control):

   • The R35 features VTC on the intake camshafts, allowing for variable intake valve timing to improve performance and efficiency.
   • The VTC system is integrated with the camshaft sprockets and controlled electronically.

4. Maintenance & Common Issues:

   • While the chain system is generally durable, high-mileage engines may experience chain stretch, tensioner wear, or guides wear.
   • Symptoms of timing chain issues can include engine rattling, rough idling, or performance loss.
   • Regular inspection and timely replacement of worn components are recommended to prevent more severe engine damage.

5. Replacement & Upgrades:

   • Due to the high-performance nature of the engine, some owners opt for aftermarket timing chain kits or upgraded tensioners to enhance reliability.
   • Timing chain replacement is a complex procedure requiring significant engine disassembly, typically performed by experienced mechanics.

Summary:

The timing chain system in the Nissan GT-R R35 is a robust and vital component that ensures precise valve timing for optimal engine performance. Proper maintenance and timely inspection are essential to keep the engine running smoothly and to prevent costly repairs.

If you need detailed repair procedures or specifications, consulting the factory service manual or a professional Nissan technician is highly recommended.