I have some questions. What is ping, or detonation, or whetever you call it? How/what is it caused buy? What does it sound like? I have been wondering for a while, so I thought I should ask.
Thanks!
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| Author: | dusterguy225 [ Mon Oct 20, 2008 6:57 pm ] |
| Post subject: | Pinging Questions |
I have some questions. What is ping, or detonation, or whetever you call it? How/what is it caused buy? What does it sound like? I have been wondering for a while, so I thought I should ask. Thanks!
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| Author: | SlantSixDan [ Mon Oct 20, 2008 7:32 pm ] |
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It sounds like BBs or marbles being rattled around in a coffee can. It's got many causes — spark plugs of too high a heat range, too much spark advance, insufficient fuel octane, carbon buildup in combustion chambers, exhaust restriction — but certain causes are more likely than others, depending on the rest of the circumstances. Wikipedia has a good article on the subject here. |
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| Author: | dusterguy225 [ Mon Oct 20, 2008 8:22 pm ] |
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Thanks, but I had heard that the sound was more of a "ringing" sound, which I had heard from my engine a while ago, and then it stopped. So its more of a knocking sound then like you said, BBs in a can? I have a "putting" sound out of my tail pipe at idle, and I was wondering if that was it, but I guess not. What could that putting sound be anyway? Valve adjustment needed? (note: it did this with my old carb and ignition too) |
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| Author: | SlantSixDan [ Mon Oct 20, 2008 8:26 pm ] |
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A valve adjustment might not be a bad idea. "Ping" is a litle bit of a misnomer because it suggests there's a ringing sound, when in fact there is not. You won't get pinging at idle. |
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| Author: | dusterguy225 [ Mon Oct 20, 2008 8:44 pm ] |
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Up for this week: Trans and Valve adjustments. Up for next week: who know what will go wrong next?  What could cause thet "putting" sound. Some car book I read said it could be a loose exhaust valve, but it only does it warm in idle. |
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| Author: | Doctor Dodge [ Mon Oct 20, 2008 9:39 pm ] |
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Do the valve lash adjustment and see if that helps. DD |
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| Author: | walpolla [ Mon Oct 20, 2008 10:28 pm ] |
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THIS is a good article on detonation and pinging also. regards,Rod
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