OEM Hyundai Camshafts and Lifters
Camshaft
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A Beginner's Guide for Installing Camshafts and Lifters
In your Hyundai's engine, the camshafts and lifters meticulously orchestrate the exact timing, duration, and lift of the intake and exhaust valves. Rotating at half the speed of the crankshaft, the teardrop-shaped lobes on the camshaft press against the hydraulic lifters, transferring force to open the valves and draw in the air-fuel mixture.
Easy Steps to Replace Camshafts and Lifters in Your Hyundai
Whether you drive a Hyundai Sonata or another car, the following guidelines are useful:
1. Strip The Engine Top End
Remove the intake manifold, ignition coils, and valve covers to fully expose the valvetrain assemblies.
2. Secure The Timing System
Rotate the engine to Top Dead Center (TDC) and lock the timing chain or belt securely to prevent piston-to-valve collisions.
3. Extract The Camshaft Caps
Use a specific loosening sequence to unbolt the bearing caps gradually, preventing from snapping the cast iron.
4. Swap The Lifters And Cams
Lift the heavy shafts out, use a magnet to extract the old lifters, soak the new lifters in fresh oil, and drop them into their specific bores.
5. Torque And Re-Time
Lay the camshaft into the journals, torque the caps to factory specs in sequence, and reinstall timing components.
Frequently Asked Questions
- Can I replace just one bad lobe?
- No, the entire shaft is manufactured as a single rigid unit.
- Do I need to break-in a new camshaft?
- Modern roller-tappet designs do not require the complex break-in procedures.
- What is the difference between DOHC and SOHC?
- Dual OverHead Cam (DOHC) utilizes two separate shafts per cylinder bank (one for intake, one for exhaust), whereas SOHC manages both with one shaft.
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