Another bad injector story....Advise please

[Kspen90]

Ball seats are eroded from my research. Install a lift pump and run addative on the next set, that's what I do and mine have 50,000 miles on them and only one has a slightly high balance rate.

I do believe you are correct with the eroded ball seat diagnosis. When i started it this morning it puffed a nice white cloud on startup but didnt smoke at idle since i didnt let it warm up to temp.

damn it kspent!

i knew that heap of yours was sick. i hate reading aboot stupid lb7 injector problems. it churns my stomach!! anyways...... i think your injectors are shot too. its not hard to swap them out so if you do end up replacing them, dont be scurred and do it yourself.

Yeah its really starting to piss me off...honestly last night i was considering ramming a tree at 45mph and selling it to the insurance company but my luck i would just end up with a bunch of medical bills from it. If i replace them, which i probably will, ill do it myself this time so i know its done right.

Not to derail this from the op. but when these LB7's have this seat issue. or go out so to say. Can i take mine out and send em to exergy or wherever and have them rebuilt or once they do this they are Junk?

im curious about this as well

 

[DeMax LB7]

can anybody help on my question here? Im gonna guess they are trash. but yet they sell remans?

 

[Kspen90]

I think it would be the same price if you were to send yours in and have them remaned as all the injectors now are reman unless you happen to run across a few new ones here and there to piece together a set.

 

[DeMax LB7]

that makes sense. i was just thinking if i wanted to do 60 percent overs if they would rebuild mine or not. I was just advised to buy a new set and have them extrude and hone them. maybe its cheaper that way.

 

[Kspen90]

that makes sense. i was just thinking if i wanted to do 60 percent overs if they would rebuild mine or not. I was just advised to buy a new set and have them extrude and hone them. maybe its cheaper that way.

All their prices are on exergyperformance.com or you can talk to guy at socal, either way its the same price and guy is good with customer service (he actually emailed me back in less than 15min today) you can send your injectors and have them tested and thenn hone the good one(s) but unless theyre new or close to it its not worth the gamble of spending the money to hone used lb7 injectors imo

 

[RPM Motorsports]

Are you going to want a full set, or just a few? I've got a few good spares, and this full set.

 

[Kspen90]

Im going to need a full set.

 

[DeMax LB7]

hahah full set of 60% overs Alright ill stop hacking into your thread!! lol

 

[02greysixer]

If i replace them, which i probably will, ill do it myself this time so i know it's done right.

Didn't the place that did them for you drop something in your turbo and bang the wheel all up then neglect to tell you? If so who knows how well they cleaned the lines, their hands etc when they put your new ones in. Or IF they even replaced all of them....
If I'm out of line tell me I'll delete this, but seems to me anyone who will chew up a turbo and not tell the owner shouldnt really be trusted.... Just my opinion


Sint frum tha orijinul smert fone

 

[adeso]

Seeing how much rust/crap my injector lines had just above the sealing surface I wonder if poor cleaning procedures have something with the new injectors failing so fast. When I pulled my HP lines to the injectors there was so much corrosion/rust there was no way I could keep the end of the line clean. I'm going to clean them with brake cleaner, flush then with diesel use the air hose then hook them up to the fuel rails but run them into a bunch of bottles and run a couple gal from my AD though the system before I hook them up to the injectors.
If a shop just takes them off and wipes them with a rag there has to be a lot of crap that ends up on the end of the line and straight into the injector
MA has a thing on their website on how to clean them, but mine were so bad that the rust dropped down over the opening of the line when I pulled them.

 

[adeso]

And yes I know all of that is way overkill but I really don't want to go back in there for a little while for the injectors

 

[Kspen90]

Didn't the place that did them for you drop something in your turbo and bang the wheel all up then neglect to tell you? If so who knows how well they cleaned the lines, their hands etc when they put your new ones in. Or IF they even replaced all of them....
If I'm out of line tell me I'll delete this, but seems to me anyone who will chew up a turbo and not tell the owner shouldnt really be trusted.... Just my opinion


Sint frum tha orijinul smert fone

I feel the same way, i do however know that they did replace all of them because i didnt give them the new ones until. i picked up the old ones

 

[02greysixer]

I'm with you adeso, I cleaned mine so good I could have used the damn things as drinking straws

And kspen, too bad you're not closer we'd knock it out in a day. Texas to fla is a long trip though!


Sint frum tha orijinul smert fone

 

[Kspen90]

I appreciate the offer :thumb: ive been doing research for the past few days and i found the MA write up on cleaning the lines but im going to post a new thread soon for any and all tips for injector replacement and see if it can be made into a sticky since this is such a common problem.

 

[adeso]

If you google LB7 injector DIY there is a old but good one on the BOMBers website, it is the best one I have found
This one is good too
http://duramaxdiesels.com/forum/showthread.php?t=4824