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Duramax 6600 Discussion Forum for the Duramax 6600 Diesel Engine, including the LB7, LLY, LBZ, LMM & LML engine specific topics.

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  #21  
Old 03-24-2018, 08:06 AM
Kennedy Kennedy is offline
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I just set up an LB7 owner with a set of SAC 45's to replace his original injectors at something like 280k. I have purchase history back in 2003 Mega filter and FPPF Total Power since new with lift pump soon to follow. When he sent his cores in I marked them specifically so that they could be examined for overall wear condition. I believe they finally gave in to the blue smoke seep common to the VCO nozzle.
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2002 Chev K2500HD D/A CC Long LT 11.77@ 124mph at 7700# fuel only-e.t. needs help
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2007 Chev K2500 Classic EC Short LT (Sold)
2012 GMC K3500SRW D/A CC Long LTZ Happy Birthday to me! Built 1 working day after my birthday and delivered 7 days later.
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  #22  
Old 03-25-2018, 06:55 PM
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Quote:
Originally Posted by richp View Post
Hi Jim,

Thanks for the link -- interesting info.

I've driven by the EGT and boost gauges since I started running turbos years ago. I always felt that the EGT in particular was a critical representation of what is going on in there, and that managing those temps conservatively is a good way to prolong the life of the engine.
In that review you can see that adding performance surprisingly allowed for a lower EGT - sorta contrary to what logic might suggest.
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  #23  
Old 03-28-2018, 04:36 AM
richp richp is online now
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Hi,

OK, the deed is done.

Spent an interesting and informative time with John Kennedy yesterday in his shop, getting a dual lift pump and "Kill P0087" tune loaded. John says he tweaked torque a bit as well.

Time will tell, but I have high hopes.
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09 K-2500 Standard Cab
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In The Past: '82 6.2 Jimmy Blazer, '93 6.5 GMC K-2500, '01 DMAX K-2500
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  #24  
Old 03-28-2018, 04:50 AM
DieselDavy DieselDavy is offline
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Rich,
Please keep us in the loop. We'd all love to hear how it turns out!
Dave
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  #25  
Old 03-28-2018, 06:27 AM
richp richp is online now
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Hi Davey,

It drove 300 plus miles back home yesterday no problem. The real test won't come until summer, when I start long trips with the heavy trailer. It has never coded running empty.

But I will give a full report for sure.
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  #26  
Old 04-12-2018, 10:24 AM
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Quote:
Originally Posted by richp View Post
... The real test won't come until summer, when I start long trips with the heavy trailer.
I've reserved your space...
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  #27  
Old 04-12-2018, 10:49 AM
richp richp is online now
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Hi Jim,

I'd love to visit with you and park it in that pasture up the hill again. But between a wedding in Texas and a bucket list New England tour in the Fall, none of my my travel will be that far west this year.

But Texas heat in early August should be a good test...
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09 K-2500 Standard Cab
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Cedar Creek Silverback 33RL Fifth Wheel
In The Past: '82 6.2 Jimmy Blazer, '93 6.5 GMC K-2500, '01 DMAX K-2500
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  #28  
Old 06-16-2018, 05:07 PM
richp richp is online now
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Hi,

Time for an update.

A couple months ago, John Kennedy added a dual lift pump and changed the parameters in the ECM regarding the P0087 code. I also installed an Edge Insight CTS2.

I now have two 200 plus mile trips towing my big fiver under my belt -- the last one in 90 degree heat. In local driving, I had one very quick regen at about 450 miles at 37 soot. So far, no codes, towing or otherwise. The new monitor is particularly useful to me for keeping track of things like fuel temperature, which seems to be a factor in throwing the code on high mileage injectors.

Still learning and watching, but I am optimistic. The next big tests will be about 500 miles over into Iowa for July 4th, and then about 1,750 miles to Texas and back in early August. Time will tell...
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09 K-2500 Standard Cab
Universal Fuel Filtration
Cedar Creek Silverback 33RL Fifth Wheel
In The Past: '82 6.2 Jimmy Blazer, '93 6.5 GMC K-2500, '01 DMAX K-2500
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  #29  
Old 06-18-2018, 03:22 AM
DieselDavy DieselDavy is offline
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Good news! And good luck with the longer trips this summer!
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Sold June, 07 '82 1/2 ton 4X4;340k miles
'97 2 Dr Tahoe, Intercooled,
Kennedy ECM, 4" Exhaust
'02 GMC
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