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Can't decide if I'm lucky or cursed. The pick up foot in my tank came apart and was causing problems so I dropped the tank this weekend. Got that fixed, dumped 4 gallons of diesel back in the tank for the 4 mile drive to the gas station.
Cycle the key to get the fuel back in the system and build pressure and hear splashing liquid. Surprised to see it's coming from the engine not near the tank where I've been working.
Find the braided steel line from the FRX split open on the driver side. I had a failure with an early model FRX from Riffraff when they were doing some design changes and I got the one that slipped through the cracks.
This one split near the middle of the hose where it was laying against the head. The split wire loom around the line wasn't damaged.
So either it was great timing considering the last one failed while driving on the freeway, or it's just bad luck with me and the FRX.
Right now I have plugs in the head and regulator shim portion and can get a new hose made. Question is, should I get one for the passenger side too or is this just some freak deal?
If a part goes on me, I usually replace all of the same item at the same time. Kind of like hpop lines, if you change one you might as well change both. As these lines for the FRX are not expensive, you might as well change both while you are in there...JMHO. I would have two sets made and keep one set in my spare parts box but I have a tendency to over prepare for things
That is pretty freaky tho. IIRC there were only a couple failures on the original design (yours is the only one I recall) and this is the first I've seen on the new design. I guess with the miles you rack up you'll be one of the first to see things. Like that Carter fuel pump bursting open like Hulk on ya.
I'd price two new hoses Monday and think about it overnight.
From that picture it doesn't look like a line failure from a manufacture stand point, it looks like it was rubbing against something for a long time and finally wore through. I am pretty sure Riffraff stopped selling them uncovered (bare stainless) because people weren't covering them and this was happening. The ones I have installed for the last couple years come with a specialty sleeve on them so this can't happen like it can with cheap loom. From what I remember this lines are rated burst at like 12,000 psi so it is obviously something wearing on it, which is an installation issue.
Shoot us an email with your contact number and we can help you out on it. This isn't a manufacturing related issue but a wear issue from the picture, but we are still happy to help you out. For the last couple years we have covered the lines with fire sleeve for abrasion resistance because even with extremely high quality lines, if allowed through vibration, they will either eat through or be eaten through overtime.
That is pretty freaky tho. IIRC there were only a couple failures on the original design (yours is the only one I recall) and this is the first I've seen on the new design. I guess with the miles you rack up you'll be one of the first to see things. Like that Carter fuel pump bursting open like Hulk on ya.
I'd price two new hoses Monday and think about it overnight.
Good idea. Might as well try to break 3.0 too.
Originally Posted by duck fan
From that picture it doesn't look like a line failure from a manufacture stand point, it looks like it was rubbing against something for a long time and finally wore through. I am pretty sure Riffraff stopped selling them uncovered (bare stainless) because people weren't covering them and this was happening. The ones I have installed for the last couple years come with a specialty sleeve on them so this can't happen like it can with cheap loom. From what I remember this lines are rated burst at like 12,000 psi so it is obviously something wearing on it, which is an installation issue.
Picture doesn't show it well enough, but it's actually a burst in the line, not abrasion damage. I've seen this type of failure before on hydraulic lines when they get old or worn out.
Besides, the wire loom around it was in fine condition and the location of the split was in the absolute last place you would expect it.
I guess I should have thought to measure the length of the other hose.
Picture doesn't show it well enough, but it's actually a burst in the line, not abrasion damage. I've seen this type of failure before on hydraulic lines when they get old or worn out.
Besides, the wire loom around it was in fine condition and the location of the split was in the absolute last place you would expect it.
I guess I should have thought to measure the length of the other hose.
In thousands of units we haven't ever seen this. If you want we can overnight you a replacement, and submit this to the manufacture engineering department. Email us for details.
I still have the original one. No problems yet. I did add some bigger hose around it in critical areas.
I'm not surprised. When I did my first one, we did 3 trucks at the same time. The other two are still together and running strong. Just mine decided to have the problem. That's the way my luck seems to run.
Originally Posted by Riffraff Performance
In thousands of units we haven't ever seen this. If you want we can overnight you a replacement, and submit this to the manufacture engineering department. Email us for details.
Boy I sure do wish I would have called you first now. I stopped by the local hose and pipe place and after a short discussion he said, no problem. I can have you out of here in 10 minutes. Final ticket was $127.00.
Turns out if you leave me standing around staring at a store full of tools for 10 minutes I can find $100 worth of tools that I suddenly can't live without.
This set up had just a little under 200,000 miles on it, so I can't complain. We've seen the factory HPOP hoses burst too, and I've seen my share of hydraulic hoses fail as well. $30 for a replacement hose isn't anything to complain about after those miles.
Like I said in the beginning, I can't figure out if it was good or bad luck this time. This would have been a much bigger deal if I had been out driving it. Busting in the shop where I had all the comforts, tools, and parts needed to get back on the road wasn't the worst thing that could have happened.
viewing the pic on my high resolution monitor i don't see any shiny strands of wire that would be indicative of chafing, what i see looks like the wire strands are cut clean and crisp. so clean that you would find it difficult to duplicate that cut with a tool. from my somewhat limited experience with burst hydraulic lines that leads me to believe it was caused from internal pressure. somehow the system exceeded the rated PSI of the hose, system pressure spike, wrong hose ratting, a flaw in the hose etc
I don't see how the pressure in the system could have exceeded the design pressure, especially since it was trying to build pressure when it blew. My fuel pressure gauge was only just climbing into the 60's when it popped.
Besides, I had fuel pressure spikes that went to 100 psi when my factory FPR fitting and o-ring acted up. Not to mention almost 200,000 miles driving on this line.
That's how this stuff seems to work. It works well until it doesn't, and when it doesn't, it's quick. Same as the factory HPOP lines. (hope everyone has replaced those by now before you get one of those to blow)
Problem: The hose has burst in a clean fashion, with no random wire breakage and no sign of wire-on-wire abrasion or cover abrasion.
Cause: There were excessive pressures or pressures in the range of the minimum burst rating for the hose.
Solution: Adjust the system pressure to be within the established working pressure of the hose, or replace it with a hose that has a higher working pressure.
and the example of the clean split hose they use from a pressure burst
I would be interested in seeing what the manufacturer of the line would say. There is no way a system that runs at 60psi was able to burst a line with a working pressure of 3000psi. Since when could that minascual pressure split stainless steel braided line? It doesn't really matter because of course after 200,000 miles it would be normal for anything to fail, but more likely for the inner liner to give out and weep through the braid.
Can't decide if I'm lucky or cursed. The pick up foot in my tank came apart and was causing problems so I dropped the tank this weekend. Got that fixed, dumped 4 gallons of diesel back in the tank for the 4 mile drive to the gas station.
Cycle the key to get the fuel back in the system and build pressure and hear splashing liquid. Surprised to see it's coming from the engine not near the tank where I've been working.
Find the braided steel line from the FRX split open on the driver side. I had a failure with an early model FRX from Riffraff when they were doing some design changes and I got the one that slipped through the cracks.
This one split near the middle of the hose where it was laying against the head. The split wire loom around the line wasn't damaged.
So either it was great timing considering the last one failed while driving on the freeway, or it's just bad luck with me and the FRX.
Right now I have plugs in the head and regulator shim portion and can get a new hose made. Question is, should I get one for the passenger side too or is this just some freak deal?
Something ate through that.. maybe battery acid? IDK?
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