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← TechnologyWhich risk increases when advanced timing causes excessive pressure in stratified-charge engine piston?
A)Connecting rod buckling from impact✓
B)Wrist pin failure from increased stress
C)Valve float from insufficient spring force
D)Piston ring flutter from inertial forces
💡 Explanation
When very advanced timing creates extreme pressure, the connecting rod experiences immensely increased cyclical loads because the combustion peak has shifted too early in the compression stroke, applying severe momentary stresses. This leads to a higher probability of connecting rod buckling from direct compressive loading rather than the described alternatives.
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