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Forum: 01-04.5 LB7 Duramax Powertrain   05-20-2018, 12:53 PM
Replies: 5
Views: 279
Posted By fteenthousand
Gotcha. When you pulled the engine, did you...

Gotcha. When you pulled the engine, did you unbolt the converter before or after the engine was out? If it was still bolted to the flexplate you may have damaged the transmission. The converter...
Forum: 01-04.5 LB7 Duramax Powertrain   05-20-2018, 11:43 AM
Replies: 5
Views: 279
Posted By fteenthousand
You have to remove the transmission or the...

You have to remove the transmission or the engine. Transmission is much easier to remove.


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Forum: 01-04.5 LB7 Duramax Powertrain   05-20-2018, 11:28 AM
Replies: 5
Views: 279
Posted By fteenthousand
Just like any other transmission. The best way...

Just like any other transmission. The best way is with the trans standing up, drop it in straight and spin to make sure itís seated in all splines. The converter should sit down from the flat...
Forum: 01-04.5 LB7 Duramax Powertrain   04-10-2018, 07:32 PM
Replies: 11
Views: 616
Posted By fteenthousand
Check fluid level. Weíre you watching trans...

Check fluid level. Weíre you watching trans temps when you were towing?


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Forum: 01-04.5 LB7 Duramax Powertrain   04-04-2018, 05:05 PM
Replies: 5
Views: 1,687
Posted By fteenthousand
I very much doubt that it is rebuildable after...

I very much doubt that it is rebuildable after the chain broke. If it was ran dry everything will need to be be replaced pretty much and it will cost more than buying a Reman.


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Forum: 01-04.5 LB7 Duramax Powertrain   04-03-2018, 03:22 PM
Replies: 30
Views: 2,649
Posted By fteenthousand
Return line. I think..... Sent from my...

Return line. I think.....


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Forum: 01-04.5 LB7 Duramax Powertrain   03-31-2018, 07:48 PM
Replies: 3
Views: 294
Posted By fteenthousand
Looks like a pretty nice truck. The mileage make...

Looks like a pretty nice truck. The mileage make it even better, it may be a little overpriced for an lb7.


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Forum: 01-04.5 LB7 Duramax Powertrain   03-28-2018, 05:50 AM
Replies: 1
Views: 412
Posted By fteenthousand
Iím sure you could but why? Just fix the leak. ...

Iím sure you could but why? Just fix the leak.


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Forum: 01-04.5 LB7 Duramax Powertrain   03-27-2018, 06:02 PM
Replies: 30
Views: 2,649
Posted By fteenthousand
Thoroughly discouraging lb7

Gotta pull valve covers and check return lines. Get some dye and put in the fuel filter, pull valve covers, reinstall high pressure lines start it up and inspect all of the lines with a UV light. ...
Forum: 01-04.5 LB7 Duramax Powertrain   03-25-2018, 08:05 PM
Replies: 30
Views: 2,649
Posted By fteenthousand
3 - one from passenger side to drivers side...

3 - one from passenger side to drivers side front then goes from drivers rear to module.


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Forum: 01-04.5 LB7 Duramax Powertrain   03-24-2018, 03:32 PM
Replies: 30
Views: 2,649
Posted By fteenthousand
I would check all of the lines and then watch the...

I would check all of the lines and then watch the balance rates, even if the numbers are off, if you donít have any problems donít worry about it.


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Forum: 01-04.5 LB7 Duramax Powertrain   03-24-2018, 01:37 PM
Replies: 30
Views: 2,649
Posted By fteenthousand
Yes. They look much better. Check your oil...

Yes. They look much better.

Check your oil frequently for the first few weeks.


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Forum: 01-04.5 LB7 Duramax Powertrain   03-24-2018, 01:20 PM
Replies: 30
Views: 2,649
Posted By fteenthousand
Looks exactly like mine did. It could be any one...

Looks exactly like mine did. It could be any one of the return line connections leaking as well but I would try high pressure lines first.


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Forum: 01-04.5 LB7 Duramax Powertrain   03-24-2018, 12:30 PM
Replies: 30
Views: 2,649
Posted By fteenthousand
Correct Sent from my iPhone using...

Correct


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Forum: 01-04.5 LB7 Duramax Powertrain   03-24-2018, 12:20 PM
Replies: 30
Views: 2,649
Posted By fteenthousand
Probably 50ft lbs Sent from my iPhone...

Probably 50ft lbs


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Forum: 01-04.5 LB7 Duramax Powertrain   03-24-2018, 09:47 AM
Replies: 30
Views: 2,649
Posted By fteenthousand
Yep. I even pulled the upper valve covers,...

Yep. I even pulled the upper valve covers, reinstalled the high pressure lines to the torque specs, put dye in the fuel filter and ran the truck so I could see where is was leaking. Two of the high...
Forum: 01-04.5 LB7 Duramax Powertrain   03-24-2018, 09:39 AM
Replies: 30
Views: 2,649
Posted By fteenthousand
There is a very good chance that they are. I just...

There is a very good chance that they are. I just went through this very same thing. It was the 3rd lb7 injector job Iíve done. The first two I just cranked them tight without a torque wrench and...
Forum: 01-04.5 LB7 Duramax Powertrain   03-24-2018, 09:35 AM
Replies: 30
Views: 2,649
Posted By fteenthousand
If you torqued the high pressure lines to gm spec...

If you torqued the high pressure lines to gm spec thatís probably it. Iíve found that itís not enough. Crank those things tight, forget the torque wrench


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Forum: 01-04.5 LB7 Duramax Powertrain   03-18-2018, 09:57 PM
Replies: 3
Views: 347
Posted By fteenthousand
95 gph should be fine unless you planning on...

95 gph should be fine unless you planning on building the trans and cranking up the power. CP3 doesnít need replaced unless you are having a problem with it.


The injector cups are a sleeve...
Forum: 01-04.5 LB7 Duramax Powertrain   03-17-2018, 10:27 PM
Replies: 19
Views: 14,420
Posted By fteenthousand
If that $2500 included the injectors they are...

If that $2500 included the injectors they are just dumb. It costs $2500 in parts to replace injectors correctly.


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Forum: 01-04.5 LB7 Duramax Powertrain   03-15-2018, 02:20 PM
Replies: 19
Views: 14,420
Posted By fteenthousand
Oh calm down. You clearly donít know your ass...

Oh calm down. You clearly donít know your ass from your head. Youíre basing this off of having to do injectors on an lb7 that you should have known before you bought it that injectors are an issue ...
Forum: 01-04.5 LB7 Duramax Powertrain   02-28-2018, 09:31 PM
Replies: 14
Views: 995
Posted By fteenthousand
How did you tighten injector lines? Torque...

How did you tighten injector lines? Torque wrench? OEM lines? Iíve found that they need to be tighten beyond the torque spec. 30 ft/lbs isnít enough. On the last truck I brought it up to 40-45...
Forum: 01-04.5 LB7 Duramax Powertrain   01-21-2018, 01:20 PM
Replies: 21
Views: 1,911
Posted By fteenthousand
Hmm Carbon build on the tip/nozzle is normal....

Hmm Carbon build on the tip/nozzle is normal. Actually I would be more concerned with the ones that donít have any. Send injectors to be tested or replace them all.


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Forum: 01-04.5 LB7 Duramax Powertrain   01-20-2018, 11:40 PM
Replies: 21
Views: 1,911
Posted By fteenthousand
Take pry bar and pry on the injector body with...

Take pry bar and pry on the injector body with the bar on the injector hold down plate/pad. These ones that are tough coming out will be full of soot from the copper washer not sealing correctly. The...
Forum: 01-04.5 LB7 Duramax Powertrain   01-20-2018, 02:38 AM
Replies: 21
Views: 1,911
Posted By fteenthousand
You have a leaking injector cup/s. Sent...

You have a leaking injector cup/s.


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