Chevy/GMC Duramax 01-04 LB7 Discussion of Chevy and GMC Trucks with LB7 Duramax Turbo Diesel Engines

01 injector balance rates normal

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Old 03-29-2011, 09:00 PM
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Default 01 injector balance rates normal

just wondering what is normal for the balance rates on lb7 injectors i have 2 at -2.1mm3 and 1 at 3.5mm3 all the other are at +-.7mm3 I pretty sure I have one or more cracked just trying to figure out which one or ones
 
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Old 03-29-2011, 09:39 PM
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Default Re: 01 injector balance rates normal

Also interested so I will bump it up

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Old 03-30-2011, 07:23 PM
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with ect at 160* min they should be:

+/- 4 in park
+/- 6 in drive
 
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Old 04-04-2011, 10:49 AM
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I was told possibity of having return lines cracked and leaking fuel. Has anybody seen this?
 
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Old 04-05-2011, 09:04 PM
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happened to me, if the guy who installed the injectors torqued injector lines way too tight it can twist the injector in its hold down breaking the return line seal
 
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Old 04-06-2011, 09:57 AM
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thanks for the info
 
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Old 04-14-2011, 10:36 PM
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replaced all injectors and replaced lines too runs great thanks for the help guys
 
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