06 owners, check this out, mine stranded me
07-29-2009, 09:46 PM
#61
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Location: Cummins Technical Center, IN
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That line is made of a VERY high grade material that only two companies on the planet produce. It undergoes an additional process called autofrettage to increase the fatigue margin. This process is basically like hydraulically "shotpeening" the ID of the lines.
What kills these lines is vibration. Those "isolators" are crucial. If you are missing one, the line vibrates enough to where it will fatigue the line and it will fail from bending fatigue.
As the a development engineer responsible for the HP fuel lines on the forthcoming common rail ISXs, I can tell you that VERY great pains are being taken to ensure that the HP fuel lines are very robust.
How robust? Well, let's just say that I had an engine in a test cell rub halfway through the wall thickness of the pump-to-rail and it still didn't fail!
Needless to say that this issue HP fuel line fragility will no tbe repeated..
07-30-2009, 11:01 AM
#63
Registered User
Pewter? HA!!
That line is made of a VERY high grade material that only two companies on the planet produce. It undergoes an additional process called autofrettage to increase the fatigue margin. This process is basically like hydraulically "shotpeening" the ID of the lines.
What kills these lines is vibration. Those "isolators" are crucial. If you are missing one, the line vibrates enough to where it will fatigue the line and it will fail from bending fatigue.
As the a development engineer responsible for the HP fuel lines on the forthcoming common rail ISXs, I can tell you that VERY great pains are being taken to ensure that the HP fuel lines are very robust.
How robust? Well, let's just say that I had an engine in a test cell rub halfway through the wall thickness of the pump-to-rail and it still didn't fail!
Needless to say that this issue HP fuel line fragility will no tbe repeated..
That line is made of a VERY high grade material that only two companies on the planet produce. It undergoes an additional process called autofrettage to increase the fatigue margin. This process is basically like hydraulically "shotpeening" the ID of the lines.
What kills these lines is vibration. Those "isolators" are crucial. If you are missing one, the line vibrates enough to where it will fatigue the line and it will fail from bending fatigue.
As the a development engineer responsible for the HP fuel lines on the forthcoming common rail ISXs, I can tell you that VERY great pains are being taken to ensure that the HP fuel lines are very robust.
How robust? Well, let's just say that I had an engine in a test cell rub halfway through the wall thickness of the pump-to-rail and it still didn't fail!
Needless to say that this issue HP fuel line fragility will no tbe repeated..
All kidding aside what is the torque spec for the fastener that does the clamping on the injector line Isolators???? are they using a thread locker to insure the fasteners dont back off??????
07-30-2009, 11:52 AM
#64
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Good questions. Can the fasteners be over tightened and will it case a problem?
07-30-2009, 11:57 AM
#65
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If anyone is looking for the new style tube cummins is starting to produce but is on national back order but this one is for sale on craigslist
http://austin.craigslist.org/pts/1296979156.html
http://austin.craigslist.org/pts/1296979156.html
07-30-2009, 12:20 PM
#66
Registered User
If anyone is looking for the new style tube cummins is starting to produce but is on national back order but this one is for sale on craigslist
http://austin.craigslist.org/pts/1296979156.html
http://austin.craigslist.org/pts/1296979156.html
07-31-2009, 12:28 PM
#67
Registered User
07-31-2009, 03:52 PM
#69
Registered User
I'm getting a little worried. The wife and I are gonna take a trip to MN from TX soon, and while I checked out my # 4 line, it is tight and looks to be ok, I'm a little worried. Called all around to see if anyone had the # 4 line to take along as a spare, but no luck. Really want to take the truck on the road trip, but what do you ya'all think? Should we just take the wife's car instead(see sig. for her ride)? Hate to have the truck break down on the trip, and then wait a month on a $30.00 part. While we have a very nice car, I don't really like the idea of taking it on a long road trip. I'm more of a truck guy than a car guy.
07-31-2009, 11:07 PM
#71
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The Hoax was the Craigslist Ad!!!!!!!!!!!!!!!!!!!!!!!!!!!
Richard,,,,,,
08-01-2009, 02:05 PM
#74
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08-01-2009, 05:12 PM
#75
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Found a store in an older post, http://northwest.cummins.com. They service Washington, Oregon, Alaska, and my state of Montana.