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Injector Tube Nut Size?

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Old May 14, 2007 | 06:06 PM
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From: Boise, Idaho
Injector Tube Nut Size?

Help...can't remember...what is the injector tube nut size?


Thanks...

Fuel Line Torque?
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Old May 14, 2007 | 06:53 PM
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From: Utah
Originally Posted by cquestad
Help...can't remember...what is the injector tube nut size?


Thanks...

Fuel Line Torque?
it takes a 3/4" wrench I do know, but I don't know the thread size??
I could not find the torque spec, just snug them up
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Old May 14, 2007 | 07:34 PM
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Originally Posted by cquestad
Help...can't remember...what is the injector tube nut size?


Thanks...

Fuel Line Torque?
I got injector install instructions that I THINK have all the specs and what not. If you need a copy just pm me your email and I will send em to ya.
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Old May 14, 2007 | 07:42 PM
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From: Elko, NV
19 mm or 3/4"

22 ft-lbs

Just "snugging them up" is asking for leaks, especially with the high pressures that will find their way through any weak seal from either over or under-torqued fittings.
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Old May 14, 2007 | 08:54 PM
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From: Utah
Originally Posted by JStieger
19 mm or 3/4"

22 ft-lbs

Just "snugging them up" is asking for leaks, especially with the high pressures that will find their way through any weak seal from either over or under-torqued fittings.
Snug= equals 22ft-lbs.....22 foot pounds is nothing.
the flare on the fitting is what makes it seal.
snug them up you'll be fine
I have never torqued a injector line and never had one leak either......
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Old May 14, 2007 | 09:43 PM
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The 24mm hpc nut is 50nm.
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Old May 14, 2007 | 10:46 PM
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From: Cleveland, Tx/ Huntsville, Tx
The Injector Tube Nut is a 15/16 and torque to 22 ft-lbs. The Injector Fuel Lines are 19mm or 3/4 we use a 3/4 line wrech and a 3/4 crows foot on the back 2 lines makes it cake less headaches. Make sure you follow steps on injector install or you may not seat the tube into injectors right and that will mean fuel leak and you dont want that.
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Old May 14, 2007 | 11:56 PM
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From: Elko, NV
I have never torqued a injector line and never had one leak either......
I'm happy for you!

snug them up you'll be fine
I'd rather torque them per spec after having an installer (shop will remain un-named) not torque them properly using German gud-en-tite method. The end result of this was a few gallons of #2 sprayed around my engine compartment from the relief valve as well as #1 injection line. I had to buy a new #1 injection line because one sealing surface got scored by the high pressure leak. The other end sealing surface got scored too as it appeared that the person didn't use a backup wrench to prevent the line from twisting.

That being said I have used your snug method when I didn't have the correct torque wrench and crows foot to access the CP3 to fuel rail injection line, but I never got on the throttle until I could torque the tube nuts properly (not more than a day later).

Here are the injector install instructions that WAP probably refered to earlier:

http://www.glacierdieselpower.com/im...ectInstall.pdf
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Old May 15, 2007 | 12:08 AM
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From: Utah
Originally Posted by JStieger
I'm happy for you!



I'd rather torque them per spec after having an installer (shop will remain un-named) not torque them properly using German gud-en-tite method. The end result of this was a few gallons of #2 sprayed around my engine compartment from the relief valve as well as #1 injection line. I had to buy a new #1 injection line because one sealing surface got scored by the high pressure leak. The other end sealing surface got scored too as it appeared that the person didn't use a backup wrench to prevent the line from twisting.

That being said I have used your snug method when I didn't have the correct torque wrench and crows foot to access the CP3 to fuel rail injection line, but I never got on the throttle until I could torque the tube nuts properly (not more than a day later).

Here are the injector install instructions that WAP probably refered to earlier:

http://www.glacierdieselpower.com/im...ectInstall.pdf
That's why I do my own maintenance...the German gud-en-tite method has worked for me for 10 years now of course I still use my torque wrench on the stuff that needs it.
Nice instruction's
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Old May 15, 2007 | 12:12 AM
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From: Elko, NV
Originally Posted by 53 ******
That's why I do my own maintenance...
Me too...

Why pay someone else to screw it up if I could do it just as easily!!!
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Old May 15, 2007 | 12:13 AM
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From: Utah
Originally Posted by JStieger
Me too...

Why pay someone else to screw it up if I could do it just as easily!!!
yep
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Old May 15, 2007 | 12:50 AM
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Nice instruction's

Very classy Mark
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Old May 15, 2007 | 06:22 AM
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From: Ga.
Here are the injector install instructions that WAP probably refered to earlier:


That is the instructrions I was refering too, I dont have a link though, I fellow member emailed em to me so that is how I pass them along.
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Old May 15, 2007 | 09:37 AM
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Thanks...I ment the 24 MM one...lol.

Justin...you the man.

I got (whoops) when I saw the price for a complete set of stubby's...

So I bought another complete set of full length box ends from Craftsman for 1/2 the cost...and cut them all down to length (the longer ones became stubby open ends and stubby box ends)...and slotted the box ends to make them pipe wrenchs. Best set of stubby's yet!
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