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Old 03-04-2013, 07:36 AM
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33Willys77 33Willys77 is offline
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I have a Milodon in my Hemi - has a fixed idler gear. My timing stays put throughout the RPM range. If I run the engine without the blower belt, I cannot hear any noise (from the gear drive). The noise comes from the design of the teeth, just like a blower belt. The air is getting pushed out between the teeth creating a noise. It all depends on how the teeth are cut and how the gear drive is designed and installed. I would not run a dual idler gear drive, but with a fixed idler, I see less slack than I do with a chain.
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