Thread: Why do some diesels have glowplugs and some not?
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  #40  
Old 02-03-2007, 04:17 PM
scott19_68 scott19_68 is offline
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Join Date: Apr 2006
Location: North Shore, MA
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The ball is there to increase the air-fuel mixing via turbulence. The angle between the injector and the ball enhances this effect to aid a more complete combustion process.

Hey, my masters degree in fluid dynamics just came in handy!
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2006 E320 CDI (120k miles)
FOR SALE: 1998 E300 Turbo Diesel - Black w/Tan Leather - Euro delivery (236k miles)
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