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  1. D

    Industrial Injection Screw-in injector cups

    Hello all, After a couple of weekends tearing down my new project truck I've discovered what I think is the root of all its current issues. Pretty certain the no.1 injector cup took a crap. See photo below. After doing some research it looks like this is a common evil on LB7 trucks. Then I...
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    Newbie rescues an LB7

    I think I just discovered the root of all my evils.... there are 7 injectors that look like the one on the left..... the one on the right is my number 1 injector..... its the closest injector to the intake box, which is exactly where the tapping noise I was hearing was the loudest. From what...
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    Newbie rescues an LB7

    I was following this: Sent from my SM-S908U1 using Tapatalk
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    Newbie rescues an LB7

    Hey so I followed your advise and checked the valve lash before taking the engine apart and what I found makes me think the noise isn't valve lash. I found the valve lash measurements to be all over the place. I highly doubt whoever was in this engine before me followed any kind of procedure at...
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    Head resurfacing yay or nay?

    All great info guys. Thanks so much. I'm gonna try and finish getting the heads off today to take them to the machine shop tomorrow. Sent from my SM-S908U1 using Tapatalk
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    Head resurfacing yay or nay?

    Thank you for the info. Ill get with my machine shop and get their thoughts on it. I just wanted to hear what others had to say about it. Sent from my SM-S908U1 using Tapatalk
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    Head resurfacing yay or nay?

    Aren't grade C head gaskets meant to account for the thickness lost when resurfacing? I believe I was told they are like .05 thicker or something like that. Sent from my SM-S908U1 using Tapatalk
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    Head resurfacing yay or nay?

    So as the tittle implies I'm looking to get some thoughts, opinions, and above all experiences with head resurfacing. I'm pulling the heads on my LB7 and I'm planning on taking them to a reputable machine shop I've worked with before to have a valve job done, and to have them inspected for...
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    Newbie rescues an LB7

    Yes, the upper hose was very hard even the next morning. Also, while the truck was running I could hear gurgling and bubbling inside the reservoir. Sent from my SM-S908U1 using Tapatalk
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    Newbie rescues an LB7

    So update for you guys that are helping me on my first venture into one of these engines. Got one of the valve covers off, and definitely going to be checking valve lash. From working on gas engines I think I have a general idea of how much valve lash is too much, and without setting the engine...
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    Newbie rescues an LB7

    More traces of shit mechanic..... yes that's a 13mm socket sitting under the valve covers.... no its not mine I dont own snap on stuff....
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    Newbie rescues an LB7

    So I do have cooling system pressurization and I also have soot deposits on the bottom of the reservoir. I haven't ruled out an injector cup as a possible culprit of the noise because I have the headgasket like symptoms. Im thinking since I'm going to have the heads off already I'll have the...
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    Newbie rescues an LB7

    Thanks for the torque wrench tip, learned that the hard way several years ago while camming my sierra. I torque everything that has a spec to spec now. Sent from my SM-S908U1 using Tapatalk
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    Newbie rescues an LB7

    Thanks for the info on the lines. Ill pull back on the lines except for the ones you noted. Regarding the rubber hoses, as a personal preference I like prebent rubber hoses vs buying generic hoses and bending them as I've found that sometimes when they get hot and soft they are prone to kinking...
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    New guy from Florida

    Learning about the SAC injectors was a pleasant surprise after buying the truck for sure. I bought it with the mindset I'd just throw injectors on it every 60k if I kept it for long, now according to what I've read on them it seems I may not have to after all. Sent from my SM-S908U1 using Tapatalk
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    Front oil leak?

    Gotcha, thanks! Sent from my SM-S908U1 using Tapatalk
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    Front oil leak?

    This is exactly what I needed. Im not trying to pin point the leak, more like get ideas of what I can replace to try and get it to go away. So thank you. I'm gonna start with the timing cover and crank seal, and once those are done I'll clean it up and check for leaks. Any other seals in that...
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    New guy from Florida

    Build thread is up. Called it "Newbie rescues an LB7" [emoji38] any input would be greatly appreciated. Also, I agree its not the least desirable. I actually prefer it to newer trucks with all the emissions stuff on them. Simply because they are much harder to work on. Also its my favorite...
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    Front oil leak?

    I'm almost sure this has been posted somewhere before, but I used the search feature and couldn't find anything. Anyone have any ideas what could be causing this oil leak around the front balancer area? That line in the photo is pretty badly cracked, and the one above it on the bracket is also...
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    Newbie rescues an LB7

    Here's my current parts list from LDS diesel. I'm waiting to pin point the issue before putting the order in. As I mentioned above I already have the 45 SAC injectors, and the tune to make all this work is also on the way. I've also purchased a turbo elbow that was recommended by calibrated...
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