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

balance rates

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  #1  
Old 09-04-2010, 08:54 PM
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Default balance rates

hey guys I was wanting to know if you guys think my injectors are goin out
heres my balance rates from 2 months ago

parked/drive with foot on brake
1: -0.21mm / -0.76mm
2: -0.98mm / -1.38mm
3: -0.63mm / -0.91mm
4: 0.30mm / 1.13mm
5: -0.99mm / -0.98mm
6: -1.66mm / -1.47mm
7: -1.91mm / -1.66mm
8: -.0.41mm / -0.65mm

and here they are to day.

parked/drive with foot on brake
1: 1.27mm / .55mm
2: -1.24mm / -1.76mm
3: -1.24mm / -0.24mm
4: 0.30mm / -.94mm
5: -0.59mm / -1.05mm
6: -1.37mm / -1.19mm
7: -3.64mm / -1.82mm
8: -.035mm / -0.4mm

cylinder number 7 is the one that worries and makes me wonder whats goin on. it ranges from about -2.10 to -4.02 (the highest it got) in park but then as you can see it drops to where it was 2 months prior when in drive with foot on the brake. And then when i take the oil cap off while its running there is just the slightest bit of white vapor ( I really really had to look for it), and as far as I can tell I dont think its making oil, and there is no white smoke coming from the exhaust. if anyone could shed some light on this that would be great.

thanks
mike

---AutoMerged DoublePost---

I just came back inside from messing with my truck again and that number 7 cylinder went all the way down to -.98 in park and then it sat between that -.98 and about -1.80. So I'm not sure why its varying like it is. I did the paper towel test and it like oil on a paper towel no rings or anything, and then I took the oil cap off again and I couldn't see any white vapor coming out (not sure if the sun was just in the right place earlier, or maybe its not doing it now).
 

Last edited by 01d-max; 09-04-2010 at 08:54 PM. Reason: Automerged Doublepost
  #2  
Old 09-07-2010, 06:21 PM
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it all looks fine from here, the balance rates are still within tolerances
 
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Old 09-07-2010, 06:25 PM
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Alright thanks. Does it appear they are on their way out? Also where is the best place to buy some reman. bosch injectors. I've heard that Lincolndiesel.com is pretty good
 
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Old 09-07-2010, 06:28 PM
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all i can sya is stay away from pensacola
 
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Old 09-07-2010, 07:06 PM
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Originally Posted by 2500HeavyDuty
all i can sya is stay away from pensacola
have you heard anything about lincolndiese.com ?
 
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Old 09-07-2010, 07:15 PM
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nope i havent
 
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Old 09-07-2010, 07:26 PM
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alright well thanks for all the info, it eases my nerves a little
 




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