Fuel Injector Tube - Detroit Diesel 92 Series Service Manual

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SERIES 92 SERVICE MANUAL
2.4 FUEL INJECTOR TUBE
The bore in the cylinder head (for the fuel injector) is directly through the cylinder head water
jacket. See Figure 2-39.
NOTICE:
Only ethylene glycol base antifreeze should be used in Detroit
Diesel engines. Methyl alcohol base antifreeze has an adverse
effect on the fluoroelastomer seal rings in the cylinder head.
To prevent coolant from contacting the injector and still maintain maximum cooling of the
injector, a tube is pressed into the injector bore. This tube is sealed at the top with a neoprene
ring and upset into a flare on the lower side of the cylinder head to create watertight and gaslight
joints at the top and bottom.
The large Inside diameter (30.4292 mm-30.5054 mm vs. 29.972 mm-30.0482 mm or
I. 198 in.-1.201 in. vs. I. 180 in.-1.183 in.), the Detroit Diesel logo, and the number "606" stamped
on the top flange distinguishes the injector hole tube from the former .
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6SE379 9909 Copyright© 1999DETROITDIESELCORPORATION
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