Date: Wed, 17 Mar 1999 17:51:51 -0500 From: "Mike Smith" <kld_msmithnopsamAMearthlink.net> Subject: Re: Explanation of engine 'ping' and 'knock'
Jeff wrote in message <01be70bd$fb1a7ea0$25a84f0cnopsamwarp>... >Ping and knock are the same thing, with ping being a milder form. They >are caused by premature ignition in the cylinder. This in turn is >caused by incorrect (too advanced) ignition timing, improper air-fuel >ratio, or using fuel of too low an octane. A mild ping heard on hard It can also be caused by an increase in engine compression over time, due to carbon buildup in the combustion chamber. -- Mike Smith. No, the other one.
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