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Duramax 6600 Welcome to the Internet's first Duramax 6600 diesel discussion forum for the LB7, LLY, LBZ, LMM, LML, LGH & L5P RPO code engines. Tips on performance, fuel economy, troubleshooting and more.

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  #11  
Old 08-25-2009, 01:06 PM
dr.olds dr.olds is offline
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does any body have a part# for a filtration kit for an LB7? would put one on if had a #!
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  #12  
Old 08-25-2009, 02:00 PM
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DmaxMaverick DmaxMaverick is offline
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Quote:
Originally Posted by dr.olds View Post
does any body have a part# for a filtration kit for an LB7? would put one on if had a #!
You don't need a part #. You have several options HERE. John Kennedy and Greg Landuyt (both are TDP members/supporters) offer the best there is to be had. The problem is choosing.
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  #13  
Old 08-25-2009, 03:10 PM
chipper chipper is offline
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[QUOTE=richp;247126]Hi Gang,

1. Year/Make/Model truck - 2001 K-2500 Chevy Standard Cab
2001 GMC EXT CAB

2. Engine code (LB7, LLY, LBZ, LMM) - LB7
LB7

3. Type of additional filtration added, and at what odometer reading - Universal Kit/150k
CAT750 post OEM 38K

4. History of injector replacement, if any, and at what odometer reading(s) 1 set at 90k, second set at 165k
Origional

5. Overall satisfaction with additional filtration - return on investment commentary - too soon to know, since I was (yes, I'm very ashamed of myself here) tardy in getting the extra filtration on with the early sets of injectors. Have to say it gives me a lot more confidence for the future, though.
Looks good so far
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  #14  
Old 08-25-2009, 03:47 PM
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bigchev bigchev is offline
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1. My truck is a 2003 Ext. Cab. with a lot of aftermarket performance equipment, turbo,intake,4" exhaust, Industrial Injection dual fuel lines, lift pump,exhaust brake, built tranny and triple disk convertor, KENNEDY 100/250HP ECM and more.

2. Engine is LB7

3. Additional filter/water seperator is a heated racor 2 micron.

4. Still running stock injectors. I have used AmSoil Diesel Fuel additive for approx. 3 years along with AmSoil Cetane Booster.

5. I am satisfied with the Racor filter which was installed at 30K. I am now at 41K. I will change both stock and Racor filter this coming spring. Previously to installing the Racor add on filter I was changing the stock filter every 5K miles.

Since my truck has low miles I suppose that it is still too early in it's life cycle to need injectors. At the rate I drive the truck 6500 annual average I hope that any future injector failure will be was off in the future.
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  #15  
Old 09-24-2009, 09:49 PM
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Heartbeat Hauler Heartbeat Hauler is offline
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Year/Make/Model truck
2001 Chevy 3500 dually

Engine code (LB7, LLY, LBZ, LMM)
LB7

Type of additional filtration added, and at what odometer reading
Racor R60S pre-OEM from Greg @ approx 15000 miles.

History of injector replacement, if any, and at what odometer reading(s)
60K+ miles still running original injectors.

Overall satisfaction with additional filtration - return on investment commentary
I'm happy since I haven't had to replace injectors yet, and I should note that I have been using additives since day-one (started with Power Service now using Stanadyne). I don't have that many miles on it yet, but with all the travel back and forth to W.Va. (We're moving back home) that low mileage is gonna change.

JP
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"But officer, I ain't Speedin', I'm just flyin' low"

2001 Silverado 3500 Dually LS Ext Cab, 6.6L Diesel, Banks Stinger Kit, 4" Exhaust, VR Straps, Bilstein shocks, 255/85/16 BFG KM2s
2004 Suburban 2500 LT 6.0L 4x4, Bilstein Shocks, Federico front/rear sway bars
1996 Caprice 5.7L LT1, B4U Suspension, KYB shocks & Hotchkis sway bars, BMR RCA
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  #16  
Old 10-30-2009, 07:33 PM
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crafty crafty is offline
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Year/Make/Model truck
2001 GMC EXT CAB 2500 HD

Engine code (LB7, LLY, LBZ, LMM)
LB7

Type of additional filtration added, and at what odometer reading
None Added

History of injector replacement, if any, and at what odometer reading(s)
182,000 KMS and the 2,4, and 6 injectors are still original injectors. The other 5 were done one at a time starting in 2002. The last one was changed 22 months ago. I've had no troubles since then. I use Stanadyne every tank full and I think it helps alot. The truck was built in Nov. of 2000 and went on the road Dec. 21, 2000. I am consistantly getting 21.5 mpg highway and 16 mpg towing the trailer (imperial gallons) .

Overall satisfaction with additional filtration - return on investment commentary
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  #17  
Old 11-01-2009, 01:43 PM
et et is offline
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1. 2002 Chev 2500HD ECLB 4X4 purchased new in November of 2001.

2. LB7

3. Purchased Cat base and Cat 1R-029 filter in July of 2003 but horror of horrors did not install until June of 2007 at 69,151 miles and 2,024 hours. Currently have 91,704 miles and 2,655 hours. I use Kennedy’s fuel pressure gauge to determine when to change filters. So far, Cat filter needs to be changed at about 300 hours. Wix 33910 filters in OEM location looked new. I cut open the filters when removed. As soon as I get home, I will check fuel pressure again and change just the Cat filter and recheck the fuel pressure to determine if the OEM filter needs to be changed. When I exhaust my current supply of Wix 33910 filters, I will change to the new OEM filter. I try to never let my 56 gallon fuel tank get below half full.

4. Still have original injectors.
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  #18  
Old 12-18-2009, 07:17 AM
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WyoDutch WyoDutch is offline
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2009 1-ton extended cab.
.
Don't plan on doing anything except add lubricity agent to the fuel and regular OEM filter changes.

I fuel from my bulk tank, and logic dictates that if I were put a high-efficiency filter anywhere... it would be at the pump. At least that's my thinking.
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  #19  
Old 12-24-2009, 12:27 AM
GordonMarks GordonMarks is offline
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The Suburban:
Changed injectors, presumably because it had been sitting for a while in our DRY weather. Engine has a little less than 100K by what I can tell from dealer info & extrapolating the tag info before it was wrecked.
Stock filter(DELCO only),& I added an old Raccor 500 10 micron (I think)like we used on the 5.7L & 6.2L(BOY, that was FUN!!!) I don't have the room that the later ones have. Nothing in it after 5K. It's before the main filter. I try to buy fuel where I think they will have a high turnover.
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  #20  
Old 12-24-2009, 06:41 AM
conway conway is offline
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See below for filtration installed (installed within 10,000 miles of new in both cases). I just had someone check my injectors with a TECH 2 on the 03 since the 7 year warranty is expiring. The check showed that the injectors (return rate, etc.) are right on the money.
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1) '03 GMC 2500HD Dmax/Ali Ext/Short 4x4; 4" exhaust, egt and boost gauges; exhaust brake; Bilsteins; BD exhaust manifold; Oil Guard bypass; Lubrication pre oem fuel filter; Tekonsha Prodigy; Mag-Hytec differential cover; Suncoast V transmission w/deep oil sump
2) '07 Classic GMC 2500HD Dmax/Ali Ext/Short 4x4'; Bilsteins, Silastic shackles, BD exhaust manifold; Oil Guard bypass; Lubrication pre oem fuel filter; Tekonsha Prodigy; Federico sway bars; Dipricol boost and egt gauges; Transgo Jr,, Mag-Hytec differential and transmission pan
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