setel klep toyota kijang 5 k

Summary

In this video, the presenter demonstrates the process of valve adjustment on a Toyota Kijang 5K engine. Starting with a detailed step-by-step explanation, they highlight the importance of setting the valve clearance using a specific technique, including determining the Top 1 position and using precise measurements like 0.20 mm for intake and 0.30 mm for exhaust valves. The presenter emphasizes careful attention to ensure proper fitting and tightness, sharing insights about potential future adjustments after the engine warms up. The video concludes with a smooth-running engine as the final result, offering viewers a useful guide for valve maintenance.

Takeaways

• 😀 The video is about valve clearance adjustment for the Toyota Kijang 5K engine.
• 😀 The process involves rotating the engine to find Top Dead Center (TDC) and adjusting valve clearance.
• 😀 TDC is identified using a notch on the pulley and aligning it with the zero mark.
• 😀 The valve clearance for the intake valve is set at 0.20 mm, while the exhaust valve is set at 0.30 mm (or 0.25 mm for a more common choice).
• 😀 The rotor's position should be checked to ensure it is aligned with the distributor's spark plug cable, specifically for cylinder 4 when adjusting at TDC.
• 😀 After adjustments, the engine is rotated to the next TDC to ensure that the clearance is correct for each cylinder.
• 😀 The valves are adjusted using a feeler gauge, ensuring the proper gap is maintained for both intake and exhaust valves.
• 😀 The process includes setting up the valve clearance, and checking the engine's operation after a 12-hour break to ensure no irregular sounds are present.
• 😀 There is a recommendation to ensure valve clearance is not too tight or too loose, as this can affect engine performance.
• 😀 The video emphasizes that the adjustments made will likely change after the engine has warmed up, requiring rechecks and further fine-tuning.
• 😀 The final step includes locking the adjustment in place and reassembling the engine after the procedure.

Q & A

What is the purpose of setting the engine to Top Dead Center (TDC) during valve adjustment?

Setting the engine to Top Dead Center (TDC) ensures that the valves are in the correct position for proper clearance adjustment. This allows the mechanic to accurately measure and adjust the valve clearances without interference from other moving components.

How do you identify when the engine is at Top Dead Center (TDC)?

The engine is at Top Dead Center (TDC) when the rotor points to the No. 4 ignition cable. This marks the correct position to start the valve adjustment process.

What tools are used to measure the valve clearance?

Feeler gauges are used to measure the valve clearance. These gauges come in different sizes, and for the Toyota Kijang 5K engine, sizes of 0.20 mm and 0.30 mm (or 0.25 mm) are typically used for the intake and exhaust valves, respectively.

Why is the valve clearance important to adjust correctly?

Correct valve clearance is essential to ensure proper engine performance. If the clearance is too tight, it can cause the valves to remain partially open, leading to power loss or engine damage. If too loose, it can result in excessive noise and poor engine efficiency.

What is the standard valve clearance setting for the intake valve on a Toyota Kijang 5K engine?

The standard valve clearance for the intake valve on a Toyota Kijang 5K engine is typically set to 0.20 mm.

What clearance size is typically used for the exhaust valve on a Toyota Kijang 5K engine?

The standard valve clearance for the exhaust valve on a Toyota Kijang 5K engine is 0.30 mm, though 0.25 mm can also be used.

How does the valve clearance change after the engine warms up?

The valve clearance may change slightly as the engine heats up due to the expansion of engine components. It is recommended to recheck the clearance after the engine has warmed up and make any necessary adjustments.

Why is it important not to set the valve clearance too tight or too loose?

Setting the valve clearance too tight can cause the valves to remain partially open, leading to power loss, poor performance, or potential engine damage. If set too loose, it can result in excessive tapping sounds and inefficient engine operation.

What should the sound of the engine be like after the valve adjustment is completed?

After the valve adjustment, the engine should sound smooth and quiet, with no tapping or rattling noises from the valves. Some minor vibration may still be present, but the overall sound should be even and consistent.

How can you tell if the valve adjustment was successful after completing the procedure?

The valve adjustment can be considered successful if the engine runs smoothly without abnormal sounds from the valves. If the clearance is set correctly, the engine should start up without issues, and the sound should be quieter and more even, indicating that the valves are properly adjusted.