| 11. | There were also problems with exhaust valves and valve guides on the engine.
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| 12. | The engine's governor regulates by suspending the action of the exhaust valves consecutively.
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| 13. | Another reason is the large tappet clearance on the exhaust valve.
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| 14. | The Algol had a single pair of overhead inlet and exhaust valves per cylinder.
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| 15. | The cylinders had cast-iron liners and the steam and exhaust valve seatings were renewable.
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| 16. | The intake and exhaust valves were located at the top of each combustion chamber.
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| 17. | The L76 / L92 / LS3 cylinder heads use intake valves, and exhaust valves.
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| 18. | Both inlet and exhaust valves were in the cylinder heads.
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| 19. | Its intake valves were nearer the intake manifold, exhaust valves nearer the exhaust pipes.
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| 20. | The two exhaust valves enabled the motorcycle to be fitted with two separate silencers.
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