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Weird Hissing sound coming from engine

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Old 05-18-2009, 01:17 PM   #1
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Weird Hissing sound coming from engine

Alright well i have a 455 Olds in my jetboat and whenever i get it up near its highest rpms after punching it a little bit theres a little hissing sound that is coming somewhere from the engine and it only does it for a second and then goes away once i let it off. I was thinking mayb this could be the alternater belt? but its not loose or anything so i need some feedback yo
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Old 05-18-2009, 11:13 PM   #2
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bumpz0r
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Old 05-19-2009, 06:17 AM   #3
With sufficient thrust, pigs fly just fine.
chris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shed
 
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Vaccume leak?
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Old 05-19-2009, 02:34 PM   #4
ban the term murdered out
OU812 is one of the sharper tools in the shedOU812 is one of the sharper tools in the shedOU812 is one of the sharper tools in the shedOU812 is one of the sharper tools in the shedOU812 is one of the sharper tools in the shedOU812 is one of the sharper tools in the shedOU812 is one of the sharper tools in the shedOU812 is one of the sharper tools in the shedOU812 is one of the sharper tools in the shedOU812 is one of the sharper tools in the shedOU812 is one of the sharper tools in the shed
 
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What carb?? Q-Jet, Holley??
Q-Jet -- secondaries taking time to close down can cause the hissing sound.
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Old 05-19-2009, 07:14 PM   #5
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its a holley
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