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pinging!?

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Old Aug 27, 2006 | 07:23 AM
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Volcom66
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Default pinging!?
what is it exactly? and is it loud?
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Old Aug 27, 2006 | 09:39 AM
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Default RE: pinging!?
Pinging, knocking or pinking is when the fuel air mixture is ignited by compression and not the flame front produced by the spark plug see http://en.wikipedia.org/wiki/Pinging
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Old Aug 27, 2006 | 10:51 AM
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Default RE: pinging!?
Very simply stated, it is pre-detonation.
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Old Aug 27, 2006 | 10:58 AM
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Default RE: pinging!?
Or dieseling.
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Old Aug 27, 2006 | 04:28 PM
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Default RE: pinging!?
I think of dieseling as when the engine keeps running after you turn off the key, and pinging is that rattling sound you get when you put the engine under load.
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Old Aug 27, 2006 | 05:58 PM
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Default RE: pinging!?
run on or dieseling is preignition before the spark is fired and will cause the engine to carry on after igntion is off, pinging is pre-ignition of part of the fuel air mix and make the block into a xylophone and you hear a ping, they are similar but different
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Old Aug 27, 2006 | 09:55 PM
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Default RE: pinging!?
I googled it and the pinging is sound is caused by the meeting of the wavefronts of the two near simultaneous explosions occuring in the chamber---one explosion from compression and one explosion originating from the sparkplug. So, in a sense it is dieseling and a regular spark plug ignition at the same time. Pinging is the sound it makes.
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Old Aug 27, 2006 | 10:01 PM
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Default RE: pinging!?

ORIGINAL: Cannonball888

I googled it and the pinging is sound is caused by the meeting of the wavefronts of the two near simultaneous explosions occuring in the chamber---one explosion from compression and one explosion originating from the sparkplug. So, in a sense it is dieseling and a regular spark plug ignition at the same time. Pinging is the sound it makes.
Oh Well, at any rate. If you have either of these symptoms., you need a tune-up.
Poker at my house tonight. The dealer is wild.
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Old Aug 27, 2006 | 10:33 PM
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yeah i think im done playing with it i dont want to mess it up to bad. so ill go to get a tune up soon
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