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  • How To Prevent The Valve Head Rupture
    Jan 16, 2018

    The reason for the valve break may be:

    1. Itself cracked during processing and heat treatment;

    2. Valve seat twist, the valve withstand bending stress;

    3. Due to the valve touch the piston, valve train transmission improper movement or gap inappropriate impact;

    4. Valve head temperature distribution is not uniform and thermal stress.

    In order to prevent early valve wear and tear, burning and fracture, should pay attention to the following aspects:

    1. Strict control of the valve body of the amount of oil, too easy to generate coke, too little will accelerate wear and tear.

    2. Valve seat, valve and valve guide should be strictly concentric.

    3. Correctly adjust the valve clearance to prevent the valve touch the piston.

    4. Strictly control the cooling water temperature, improve the cooling effect of the diesel engine.