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Glow Plugs ??

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Old Dec 29, 2004 | 12:12 PM
  #1  
RobertJohn's Avatar
RobertJohn
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From: George West, Texas....
Unhappy Glow Plugs ??

Don't Glow plugs only help with starting ?? Like in cold weather ??
Now I'll sound real dumb.....but if thats the case what makes the spark to fire the diesel ??
Maybe I need diesel 101 or something....
 
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Old Dec 29, 2004 | 12:27 PM
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Frobozz
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You need diesel 101.

Quick answer: the piston compresses the air, which raises its temperature (see Physics 101!), to a level higher than the flash point of the fuel. Once the piston is at the top of its stroke with all the compressed, heated air, the fuel is injected into the cylinder as a mist where it burns as it hits the air.

Duncan
 
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Old Dec 30, 2004 | 07:15 PM
  #3  
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believer45
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From: Cincinnati, Ohio
CLICK HERE to go to HOW STUFF WORKS article on diesels. The first one is general introduction, if you scroll to the bottom of the page you will see a table of contents with links to three more chapters -

The diesel cycle
Direct Injection
Diesel Fuel

and two more areas that may be of interest.

Pretty interesting.

Dave / Believer45
 
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