Thread: Chain noise?
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Old 11-12-2018, 05:57 PM   #19
Who's askin'?
maytag's Avatar
Join Date: Mar 2018
Location: Utah
Posts: 831
Does it sound like 5 pebbles in a coffee can?

Cuz I hate to sound overly simple here, but the conditions you're describing are perfect for detonation. Sometimes referred to as "pinging", and correctly known as "pre- ignition".

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