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PostSubject: How Sparkplugs work.   How Sparkplugs work. I_icon_minitimeTue Nov 15, 2011 4:43 pm

How Sparkplugs work. Ignition-system-plug-location

­The spark plug is quite simple in theory: It forces electricity to arc across a gap, just like a bolt of lightning. The electricity must be at a very high voltage in order to travel across the gap and create a good spark. Voltage at the spark plug can be anywhere from 40,000 to 100,000 volts.

The spark plug must have an insulated passageway for this high voltage to travel down to the electrode, where it can jump the gap and, from there, be conducted into the engine block and grounded. The plug also has to withstand the extreme heat and pressure inside the cylinder, and must be designed so that deposits from fuel additives do not build up on the plug.

How Sparkplugs work. Ignition-system-spark-plug

The carmaker will select the right temperature plug for each car. Some cars with high-performance engines naturally generate more heat, so they need colder plugs. If the spark plug gets too hot, it could ignite the fuel before the spark fires; so it is important to stick with the right type of plug for your car.


How Sparkplugs work. Ignition-system-hot-cold

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PostSubject: Re: How Sparkplugs work.   How Sparkplugs work. I_icon_minitimeThu Dec 29, 2011 5:26 pm

can you find a video?
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PostSubject: Re: How Sparkplugs work.   How Sparkplugs work. I_icon_minitimeThu Dec 29, 2011 5:58 pm

Cool thanks for the info. So what actually makes a plug hotter or colder? Not sure I understand the illistration for the hot/cold. Is it showing that it dissipates heat easier?


How Sparkplugs work. Davewall
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2many2choose
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PostSubject: Re: How Sparkplugs work.   How Sparkplugs work. I_icon_minitimeThu Dec 29, 2011 5:59 pm

Correct answer: magic. lol
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PostSubject: Re: How Sparkplugs work.   How Sparkplugs work. I_icon_minitimeThu Dec 29, 2011 7:44 pm

2many2choose wrote:
Correct answer: magic. lol


Ahhhhhh! Magic! Now I understand! How Sparkplugs work. 1510611536


How Sparkplugs work. Lensbeck

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PostSubject: Re: How Sparkplugs work.   How Sparkplugs work. I_icon_minitimeThu Dec 29, 2011 10:30 pm

dlinsbeck wrote:
2many2choose wrote:
Correct answer: magic. lol


Ahhhhhh! Magic! Now I understand! How Sparkplugs work. 1510611536

It's simple once you get it! Hot plug=more magic. Cold plug=less magic. Nerd
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Tygur
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PostSubject: Re: How Sparkplugs work.   How Sparkplugs work. I_icon_minitimeTue Feb 07, 2012 12:25 am

Hot and cold, basically the difference is between the area available to transfer heat. Think radiator. More heat transfer to the block = a plug that doesn't get as hot.

Also, magic.
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PostSubject: Re: How Sparkplugs work.   How Sparkplugs work. I_icon_minitime

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