Crankshaft Timing Sprocket for Nissan Engines ⚙️
This precision gear sits on the nose of the crank and drives the timing chain, keeping the camshafts in perfect sync. You need it to maintain exact valve timing, smooth idle, strong low‑end torque, good fuel economy, and clean emissions. If the gear is worn, every rotation can shift cam timing and hurt performance.
How it works ⛓️
The sprocket is keyed and press-fitted to the crankshaft snout. Its hardened teeth mesh with the primary chain, holding the cam-to-crank phase angle under load. Minimal runout and correct tooth profile prevent chain oscillation and reduce tensioner wear. A phosphate-like finish resists corrosion, and tight tolerances keep alignment true.
What happens if it’s damaged ⚠️
Symptoms include cold-start rattle, rough idle, loss of power, misfire, backfire, metal flakes in oil, and chain walk. A chipped tooth or worn keyway can let timing jump; starting may fail. On interference setups, severe jump can bend valves or damage pistons. Continued driving risks broken chain and major engine failure.
Fitment and service tips
OE-style dimensions for correct chain mesh and seal clearance. Always install with a clean keyway, proper torque, and new front crank seal. Best practice: replace sprocket together with chain, guides, and tensioner for lasting reliability. Ideal for daily use or heavy-duty SUVs .
Compatibility
- Crew
- Cedric/Gloria
- Patrol
- Safari
- Laurel
