Installing a Custom Camshaft Set from Hks: Step-by-step for 4a-ge Power Gains

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Installing a custom camshaft set can significantly enhance the performance of your 4A-GE engine. This guide will walk you through the step-by-step process of installing an HKS camshaft set to achieve optimal power gains.

Tools and Materials Needed

  • HKS custom camshaft set
  • Socket set
  • Torque wrench
  • Engine oil
  • Timing belt tool
  • Gasket scraper
  • Clean rags
  • Safety glasses
  • Gloves

Preparation Steps

Before starting the installation, ensure you have a clean workspace and all necessary tools at hand. Follow these preparation steps:

  • Disconnect the battery to prevent any electrical issues.
  • Remove any engine covers or components obstructing access to the camshaft.
  • Drain the engine oil to prevent spills during the installation.

Removing the Old Camshaft

To install the HKS camshaft set, you must first remove the existing camshaft. Follow these steps carefully:

  • Remove the timing belt by loosening the tensioner.
  • Unbolt the camshaft cover and set it aside.
  • Remove the camshaft retaining bolts using a socket set.
  • Carefully lift out the old camshaft, taking care not to damage any surrounding components.

Installing the HKS Camshaft Set

With the old camshaft removed, you can now install the new HKS camshaft set. Follow these steps:

  • Apply a thin layer of engine oil to the journals of the new camshaft.
  • Carefully position the new camshaft into the engine, aligning it with the timing marks.
  • Secure the camshaft with the retaining bolts, tightening them to the manufacturer’s specifications using a torque wrench.
  • Reinstall the camshaft cover, ensuring a proper seal.

Reinstalling the Timing Belt

After installing the camshaft, it’s time to reinstall the timing belt. Here’s how to do it:

  • Align the timing belt with the camshaft and crankshaft sprockets.
  • Adjust the tensioner to ensure the belt is tight but not overly strained.
  • Double-check the alignment of the timing marks before securing everything.

Final Steps

Once the camshaft and timing belt are installed, complete the following final steps:

  • Reinstall any components or covers that were removed during the process.
  • Refill the engine with fresh oil.
  • Reconnect the battery.
  • Start the engine and listen for any unusual noises, ensuring everything runs smoothly.

Tuning and Testing

After installation, it’s essential to tune the engine for optimal performance. Here’s what to do:

  • Use a dyno to measure power gains and adjust the engine settings accordingly.
  • Monitor engine performance, checking for any leaks or issues.
  • Make necessary adjustments to the fuel and ignition timing for best results.

Conclusion

Installing a custom camshaft set from HKS can significantly enhance the power of your 4A-GE engine. By following these steps carefully, you can ensure a successful installation and enjoy the benefits of improved performance on the road.