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Good Afternoon Everyone,

I just bought an 05 Supercharged Lotus Elise. And I’m getting a super annoying rattling noise coming from the right side of my engine. I’m curious if anyone has expirenced the same thing and know what this issue is? When I’m in neutral if I rev to about 4-5k you can here the rattling noise. Also while driving but it randomly goes away sometimes too. I have no clue what this could be.
 

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The stock Exige S superchargers (Eaton MP62) have plastic gears in the snout. When they go bad, they rattle. Yours may be similar. The superchargers do consume oil and if not carefully recharged with the right amount, they fail prematurely.

If this is the problem, it is not funny: if the gears let go, the impellers can clash and send debris into your motor.

More details on the supercharger will help. Others more familiar with your exact setup may correct me or agree.

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