C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Awdul sound from l98.

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Old 06-23-2015, 09:29 AM
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MickeC4
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Default Awdul sound from l98.

Hi last year I got some help from you guys, but i have still not managed to locate the source of an annoying sound. To me it sounds metallic and it only occur when you revv the engine (rapid changes in rpm)
You can hear the sound in the following videos,
any ideas?



Last edited by MickeC4; 06-23-2015 at 09:30 AM. Reason: formating looks weird
Old 06-23-2015, 11:11 AM
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ramvet89
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That sounds like a bearing somewhere in the pulley system
Old 06-23-2015, 11:57 PM
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Cliff Harris
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The standard procedure in these cases is to take the belt off and spin the accessories by hand to see which one causes the problem.
Old 07-04-2015, 05:25 PM
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MickeC4
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I have taken the belt off and spun the accessories but i don't really know what to look for,
the generator feels solid but makes a slight chirping sound, is this normal?
The air pump feels a bit tacky, linking a video to it.

www.youtube.com/watch?v=SmB8ON-G7VI

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