General Studies · IC Engine Components
What is the characteristic operating feature of 'Deflector seals' (umbrella seals) used on valves?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1They are secured to the valve stem and move with the valve to shield the valve guide from excess oil.✓
- 2They are electronic seals used only in modern electric hybrid vehicles.
- 3They attach firmly to the valve guide boss and wipe oil from the stem.
- 4They remain stationary on the valve guide and block oil flow completely.
Correct answer
They are secured to the valve stem and move with the valve to shield the valve guide from excess oil.
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