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maloreeLB7girl

New member
Mar 5, 2015
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Okay so I am new to this site and was just wondering if anyone could tell me if I can swap out my bad LB7 injectors with LMM injectors? I've been doing some reading and dont think I can but figured I would ask here... Also I have been looking into just replacing the stock nozzles with 80hp nozzles, good or bad idea?
 

DIESELMAFIAPER.LB7

<----new hotness
Jan 17, 2010
5,163
12
38
idaho
shop.dieselmafiaperformance.com
Okay so I am new to this site and was just wondering if anyone could tell me if I can swap out my bad LB7 injectors with LMM injectors? I've been doing some reading and dont think I can but figured I would ask here... Also I have been looking into just replacing the stock nozzles with 80hp nozzles, good or bad idea?

no not even remotely close to being able to swap...... you could swap the upper end of the motor and go lly. but it'll probably be cheaper to just do new lb7 injectors and a slightly bigger nozzle would be fine to get better power
 

maloreeLB7girl

New member
Mar 5, 2015
3
0
0
Okay I didnt think I could but got told on another site that it was possible. Im thinking im just going to try to replace the injector nozzles and go from there... Im not even 100% positive that the injectors are what is wrong but figured I would start there since I just replaced the whole bottom end last May...
 

maloreeLB7girl

New member
Mar 5, 2015
3
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0
Well it started off just having a slight knock at cold start then the knock started getting louder and it started smoking white after start. So I drained the oil looking for metal shavings thinking it may have been the bottom end again and there was no shavings but was small bubbles and it smelled like fuel... I was told to take injectors out and check them for black (burnt) residue so I did and found 4 with residue on them...
 

CaptPhil

Active member
Sep 10, 2011
1,012
0
36
Delaware
Is your oil overfull? What caused you to replace the bottom end? Bearings go out? If so it was probably caused by your bad injectors leaking fuel into the oil.
 

Burn Down

Hotrodder
Sep 14, 2008
7,092
28
48
Boise Idaho
I think you have been getting poor trouble shooting advice in the past... Your in good hands here. As others have asked, why don't you start at the beginning of your engine failure up to the symptoms you have now.

Oh and welcome to DD:)
 
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LWATSON

future trans limpers
Jul 30, 2008
2,587
1
36
55
Scotland Neck NC
Maloree, why don't you fill out your signature and list all the mods done to your truck. Give a description of your future goals with this truck also and list in detail all the symptoms that led you to believe you have injector issues. Tell your side of the story not what someone else told you was wrong with it lol. As far as larger nozzles, there a good idea but the decision on what % over to go with needs to be dictated by your short term plans for the truck, and you'd probably avoid allot of headache sending them to a reputable company so the injectors can be checked and nozzles enlarged at the same time.