Here's how the Variable Valve Timing System Works on a car's engine.

The four-stroke internal combustion engine consists of gasoline-rich air entering the cylinder in the intake stroke, compressed, then ignited to push the piston down to rotate the crankshaft in the power stroke. The piston then returns to the top pushing the exhaust gases out the valves, only for the cycle to be repeated over again.

Variable valve timing optimizes fuel economy, thermal efficiency and emissions. An oil activated cam-phaser actuator is controlled by the ECU through an oil control valve. Oil pressure is sent through the VVT gear to fill up cavities to advance or retard timing. A closed loop control system utilizing the cam and crank position sensors is formed to ensure optimal timing by the ECU for either more power, or less emissions.

In this video, the engine from an Infiniti G35 (VQ35DE) is taken apart to explain the components of the variable valve timing system, including the oil control valve, camshaft bearing caps, timing tensioner, engine head, valves, camshaft and pistons.

Make sure you change your engine oil frequently!

Here's where to get OEM oil filters:
https://amzn.to/2YHimYT (US)
https://amzn.to/2GMIYl6 (Canada)
Engine oil:
https://amzn.to/2YK22Xf (US)
https://amzn.to/2YpdJYm (Canada)
This is the oil filter wrench I use:
https://amzn.to/2KhVT0N (US)
https://amzn.to/2GJOZ1Y (Canada)
Oil Drain pan:
https://amzn.to/2GLSIfA (US)
https://amzn.to/2Khgouo (Canada)
Oil products to check out:
https://amzn.to/31jhCLu (US)
https://amzn.to/2YHSoV4 (Canada)
This is where my brother gets his toothbrushes from:
https://amzn.to/31h7O4l (US)
https://amzn.to/2T7ZAsv (Canada)
This is the Camera I use:
https://amzn.to/2Y24ixX (US)
https://amzn.to/2Yhb3eo (Canada)

Reference videos:
How an Engine Works (3.5L V6 Nissan VQ35DE):
   • How an Engine Works  
How the Engine Lubrication System Works (3.5L V6 Nissan VQ35DE):
   • Why ENGINE OIL is so Important!  
How to remove an engine:
   • How to Remove a Car Engine  

Link to Etsy shop where you can purchase speedkar99's brother's socks, t-shirts or hoodies:
https://www.etsy.com/ca/shop/Speedkar

Check out the speedkar99 Facebook page:
  / speedkar9  

Check out the speedkar99 Linkedin page:
  / speedkar99  

Follow speedkar9 on Instagram for behind the scenes coverage:
  / speedkar9  

Subscribe for more videos just like this:
https://www.youtube.com/subscription_...