
Engine : Expired / Motor Plants and Auxiliary Boilers - 721/354 |
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What will cause valve stem blow-by to the valve section shown in the illustration? Illustration MO-0030 |
A) A cracked lower spring plate. |
B) Worn, broken or stuck compression rings. |
C) Damaged rubber rings on the valve seat insert. |
D) Defective rubber seal rings in the valve guides. |
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Illustration MO-0030
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