Injector cups
 

How long and difficult will it be to replace the injector cups? I'm under the assumption that 1 or more is leaking coolant and pushing it through the lower valve cover...anyone ever heard of this?

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The same time involved for changing injectors

I would check balance rates first so if you have one or two injectors going south you can kill two birds with one stone.

If you've done it before 8-11 hours depending if you have egr or not.

Took me most of a weekend my first time.

should take 4-6 hours, what makes you think the cups are leaking?

Do you get fuel in your oil? And in the cooling system? You should also have some what sweet smelling white smoke if they are bad enough. And im with fox2boost. i would make sure the injectors test out well before you do the cups to kill 2 birds at once. And if they test out good then you can get new cups and use a merchant install kit like this one below.
Merchant Automotive 10058 - 01-04 GM LB7 DuramaxLB7 Injector Install Kit

Injectors are all good, I got them replaced about 6 months ago. I'm thinkingn that one of the cups isn't seated right now and its causing coolant to leak. Just recently I noticed a little by the egr cooler, so I think I'm gonna block off or remove the cooler completely and see if this fixes it. Any suggestions???

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I would really like to see you torque everything correctly and have it back together in 4-6 hours.

well stop by sometime and ill show ya lol

Keep typing.

Do you know where the injectors are in a lb7?

Got one in the shop right now, r&r all 8 and replace fuel filter, all torqued to spec and we are on 10 hours right now and will fire it up in 10-15 minutes. No injector cup service. Book is 12.7 add injector cups and you are looking at an additional 1.6 book hours.
Not saying it cant be done in less. But If your quoting a little less than 1/2 the book hour to complete a job... You wont be working in this shop!


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well sorry guys but, warranty only pays 6 hrs at gm so, you better be busting ass to make it. Granted, if you have to clean the injector lines you can forget about gettin it done in 6hrs. itll be more like 8. As far as cups go, ocasionally a few will pull out but if youre not goin in a replacing 8 cups it doesnt really affect your time. Now that pretty much all are customer pay its a cake walk at 12 hrs. Sounds like you should hire a real d-max tech and maybe get a little more money out of your shop. at 6 to 8 hrs Im part way through another inj. job that would still be sitting out in your parking lot. I am however glad to see a diesel shop in NC. Im originally from hickory, I keep toying with the idea of moving back and starting a shop. Diesels are finally starting to catch on down there.

Actually warranty labor is 9.1. As I said, might be possible but you couldn't do your job the way I would expect it to be done. Im here to offer my customers the best product possible at the most reasonable value possible. Not trying to be bill gates, just feed my family.
Look, im not starting a war or trying to down your work , I just feel that as a shop owner its my job to evaluate performance based on quality of the repair, time required to complete, and the manner in which the tech deals with customers. I would rather have a job take longer to complete than require a come back.
You wouldn't know a david miller would you?

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from ky or nc? warranty time at dealer was 6 hrs plus .5 for cleaning fuel injector lines. Im pretty sure thats what we all try to do is take care of the customer. I just popped the 4-6 to start a pissing war for fun. My average is 8 with best of 5.5 hrs. I did the 5.5trying to beat my buddys 4 flat. I can do them in my sleep wich should be expected with how many Ive done. Theres a diff. between doing 1 or 2 a week or more for two years than someone that might do 1 or 2 a month. Idk how many you do but just sayin. Ive never had one come back but, ive had to fix several other shops mistakes.

Here what GM calls for on install time and the warranty time is not how much labor it takes to do the injectors but what they get comped for the warranty work. And we normally bill alittle more than that because we sonic blast all the lines
Attachment 39367

I cant do a screen shot but :

Fuel Injector
Diagnose/Test
Injector, Test 0.3 0.5
Replace
Injection Nozzle
One
Right B 3.3 4.5
Left B 3.7 5.1
Both B 6.5 9.1
Each Additional B 0.3 0.4
All
Right B 4.2 5.7
Left B 5.2 7.3
Both B 9.1 12.7
NOTE
To R&R Injector Sleeve, Add B 0.1 0.2
Clean B 0.0 0.8
Warranty Labor is Left - Regular Labor is right.

---AutoMerged DoublePost---

No offense but sounds like you recanting. Just verified with the local gm store - as always GM matches alldata and mitchells book hour.
There tech's time at this store is of course paid 12.7 for all 8. Considering most LB7's are out of warranty!

He would be from NC

nah i dont know him, yes they are out of warranty now but 4 years ago plenty were covered with the special coverage for 7yrs or 200k or something along those lines. I only got to do one customer pay while I was there and I can assure you I was paid 6hrs for injector job and 2hr for diag. for warranty and Yes customer pay is in 12hrs and change. I probly was gettin screwed wich is typical of a dealership. Doesnt really matter Im salary now and labor times no longer concern me. We all have mitchell and alldata go by whatever labor you want. GM uses SI and yes the times should be same.

No offense but you would never lay a hand on my truck. I work in the aerospace field so maybe I'm a little more attention to detail than most, but saying you have completed this job in 5.5 hours is crazy and irresponsible. Your not talking about rushing through a brake job here these parts are not cheap and personally if I found out you tried to beat your buddy's time on my truck IDE be pissed.

Did your dad buy you your first diesel?

haha, we have a guy here that was in the aerospace field always talking bout attention to detail and hes the sloppiest person on earth, looses more tools than anyone ive ever seen. If he is any indication of how you guys that mess with planes work, Ill never fly again. I dont do brake jobs btw, that is below me. I know how expensive the parts are and just because someone can do a job faster than you dont mean they did it wrong. Considering I am responsible for every engine build, tranny, rearend, frontend repair and all hi po work including 20 and 30k dollar engines I think its safe to say I know what Im doing. Everything we do here has at least a one year warranty, you dont stand behind garbage and we dont put garbage out there.

Toot your own horn much? Its funny every truly experienced tech I've hired wasn't much for telling folks how good he was. Its easy to be a ase super dooper master tech behind a keyboard.
Not saying your not a awesome tech, just saying that im not to sure your too convincing.

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Just makin a point, jobs can be done quickly, effeciently and correctly. Im a firm beleiver in cleanliness and torque wrenches but being clean and correctly torquing fasteners doesnt mean you have to be slow. I dont consider myself an awsome tech, theres always someone faster, smarter, better. However, I dont feel the need to degrade a person who is faster by saying their work is poor. Thats a common way of thinking with techs, shops, and gearheads in generall. We all wana beleive we have the fastest truck, the most powerful truck, the best shop, or do the best work. I never said well if its taking you the full amount of time you must be doing it wrong but, theres room for improvement. Where we are located speed means the diff. between getting the job and the customer goin somewhere else. Everyone wants the cheapest repair so a quote of 8-10 hrs is more competitive than quoting 12 hours.

I charge book hour.

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I rest my case. There is a reason the guy in your shop used to work on aerospace, some people don't have the patience or ability to work on aerospace. (gorilla mechanics) don't last very long. If you make a mistake when a plane is at altitude there are very bad consiquences. If a hot shot diesel mech rushes through a job and pinches a seal or torques something incorrectly the worst case scenario is a tow truck ride.

As mystery stated the reason I doubt your ability, plain and simple you talk to much. I bet you have a smoke tune on your truck and don't care if you blow the thing up.
Some people actually work with there truck and don't wanna rip the thing apart 4 times.

And saying that you quote a customer less than book is downright crazy. Those book times are pretty accurate. Sure, after you do a couple I'm sure you can cut the time down but 5.5 hours c'mon dude. I'm sure you adjusted the valves while you were in there as well.

And when I have to do mine again I'll point my bat light into the sky and you can fly down and do mine in 5.5

We charge book so when a job falls apart because of a gorilla tech....
You see, as a shop owner you may make good on one job and the next you might spend 12 hours fixing a screw up. Guess what we are all human and we all make mistakes... not you of course but the rest of us lol
We pay hourly and bill book, if your taking less than book your shooting yourself in the foot.
Im with fox on this subject lol

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lol touche. I agree I do like to run my mouth at times. There are several shops in this area and we all try and price cut each other, thats how it goes. As far as valves go thats not part of the injector replacement procedure and Im not the service writer here. Thats between them and the customer. As far as my personal truck goes it runs very clean for whats on it, no more than a slight haze at wot. Smoke is for high schoolers.