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25 April, 06:29

Technician A says that valve springs should be kept with the valve at the time of disassembly and tested for squareness and proper spring force. Technician B says that the exhaust valve is about 50 percent of the size of the intake valve. Who is right

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  1. 25 April, 07:52
    0
    Technician A is right

    Explanation:

    Technician B is wrong because exhaust gasses are usually under more pressure and hence are less dense, it therefore means that the exhaust valve are usually smaller in size than the intake valve. In order to achieve efficient functioning, the exhaust value is expected to be about 75 to 80 percent of the intake valve. Hence Technician B is wrong to assume that the exhaust valve is about 50% the size of the intake valve. On the other hand, it is correct practice to always leave the valve spring coupled with the valve during disassembly and it should undergo testing for accurate spring force and squareness.
  2. 25 April, 08:43
    0
    Technician A is absolutely correct that the valve spring should be kept with the valve at the time of disassembly and tested for squareness and proper spring force.

    Technician B is not correct because the size of exhaust valve is about 75-80% of the intake valve for proper functioning.
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