Need an experts advice.
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Tuned
Joined: Sep 2010
Posts: 485
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From: Boise Idaho
Need an experts advice.
Here's something I never thought I would consider. I might buy a running f250 7.3 idi with a broken injector line (completely open) but I don't have a way to tow it. What kind of problems can occur if I were to cap off the line to stop fuel flow and drive it down the road with one dead cylinder? I'm not sure how the injection pump would like that or how much the one cylinder dead would effect it's drive ability. Like I said, never thought I would consider the idea.
Thanks.
Thanks.
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Tuned
Joined: Sep 2010
Posts: 485
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From: Boise Idaho
Thanks for the reply. I would have to drive about 20 miles. He won't let me work on it in his driveway. Maybe a temporary line repair would work.......... You might have something there.
It just occurred to me that I could drive it a short ways down the road and fix it there. Why didn't I think of that earlier?
Okay, if we have that problem solved, I would still like to know what happens in the injector pump when a line is plugged.
It just occurred to me that I could drive it a short ways down the road and fix it there. Why didn't I think of that earlier?
Okay, if we have that problem solved, I would still like to know what happens in the injector pump when a line is plugged.
Posting Guru
Joined: Jul 2004
Posts: 1,627
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From: West Valley Utah
I doubt it would affect the injection pump just blocking off 1 line but having a dry injector moving for very long isn't going to do it any good.
I had an injector tip get damaged due to a broken push tube on a 400 cummins. I was in the middle of nowhere in the dark. I didn't want to wash the cylinder with fuel so I cut down a penny with wire cutters small enough to fit into the fuel line to block the fuel. Drove around 100 miles to get into town. I had pulled the rocker cover, found the problem, hitched a ride to a small logging town and found a logging company that had a few parts.
Put the thing back together and then is when I found the bad injector, no place to get one. Got about 60 miles down the road on a steep hill (running on 5 cylinders) went to grab a lower gear and the clutch bracket on the bell housing broke, so no clutch either. Made it town though, new injector, oil change, run the overhead and back on the road. That's the great part about an all mechanical engine like the older diesels, IDI included.
I had an injector tip get damaged due to a broken push tube on a 400 cummins. I was in the middle of nowhere in the dark. I didn't want to wash the cylinder with fuel so I cut down a penny with wire cutters small enough to fit into the fuel line to block the fuel. Drove around 100 miles to get into town. I had pulled the rocker cover, found the problem, hitched a ride to a small logging town and found a logging company that had a few parts.
Put the thing back together and then is when I found the bad injector, no place to get one. Got about 60 miles down the road on a steep hill (running on 5 cylinders) went to grab a lower gear and the clutch bracket on the bell housing broke, so no clutch either. Made it town though, new injector, oil change, run the overhead and back on the road. That's the great part about an all mechanical engine like the older diesels, IDI included.
Posting Guru
Joined: Feb 2011
Posts: 2,216
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From: Princeton MN
IIRC theres a guy selling a flexable line on ebay but it's 20 bucksmore then the hard line. If I were you and couldnt work on it there, show up with a truck and tools, tow it to a parking lot and change the line there, then drive home on all 8!
Freshman User
Joined: Dec 2011
Posts: 42
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From: Houston (Lake Jackson) TX
like was said hook a rubber hose up to it, i would run it to a catch can though.
in a real pinch, run the washer fluid dry, take the hose loose under the hood, slip that over the line, use the washer fuild tank as ur catch can.
I sure the owner will atleast let u hook up a rubber hose, tell him other wise its gonna leave a trail of diesel out of ur drive way.
in a real pinch, run the washer fluid dry, take the hose loose under the hood, slip that over the line, use the washer fuild tank as ur catch can.
I sure the owner will atleast let u hook up a rubber hose, tell him other wise its gonna leave a trail of diesel out of ur drive way.
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Cargo Master
Joined: Dec 2010
Posts: 2,123
Likes: 5
From: Fort Worth, TX
Here's something I never thought I would consider. I might buy a running f250 7.3 idi with a broken injector line (completely open) but I don't have a way to tow it. What kind of problems can occur if I were to cap off the line to stop fuel flow and drive it down the road with one dead cylinder? I'm not sure how the injection pump would like that or how much the one cylinder dead would effect it's drive ability. Like I said, never thought I would consider the idea.
Thanks.
Thanks.
No, the hose won't explode because of the pressure the pump puts out. That pressure reading is only good when you have something restricting the flow. It will just spit fuel at a relatively small rate of flow.
The engine will run but it will be rough. You'll want to take it easy.
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Tuned
Joined: Sep 2010
Posts: 485
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From: Boise Idaho
Many good reply's. You guys rock . I thought it might cause damage to block off a line but don't think I need to risk it anyway.
If I can find where I left my extra injector lines I'll run a soft line as described and get the hard line installed down the road a ways. If I can't find it in time I'll just splice into the return line and take it easy back home.
Thanks fellas.
. I thought it might cause damage to block off a line but don't think I need to risk it anyway.If I can find where I left my extra injector lines I'll run a soft line as described and get the hard line installed down the road a ways. If I can't find it in time I'll just splice into the return line and take it easy back home.
Thanks fellas.
Cargo Master
Joined: Dec 2010
Posts: 2,123
Likes: 5
From: Fort Worth, TX
Many good reply's. You guys rock . I thought it might cause damage to block off a line but don't think I need to risk it anyway.
If I can find where I left my extra injector lines I'll run a soft line as described and get the hard line installed down the road a ways. If I can't find it in time I'll just splice into the return line and take it easy back home.
Thanks fellas.
. I thought it might cause damage to block off a line but don't think I need to risk it anyway.If I can find where I left my extra injector lines I'll run a soft line as described and get the hard line installed down the road a ways. If I can't find it in time I'll just splice into the return line and take it easy back home.
Thanks fellas.
Fleet Owner
Joined: Jul 2006
Posts: 20,357
Likes: 813
From: Mi'kma'ki
well since you asked for expert advice.the expert response to your question would be to replace the line:
7.3 L Ford Diesel Fuel Injectors Fuel Pumps Accessories
before driving the truck home,or have it towed home.
if you can't afford either of these options,then it's highly likely you can't afford to drive and properly maintain the HD diesel truck anyway and you should consider a different truck.
expert advice wouldn't be to pinch off the line nor temporarily run low pressure fuel hose on a high pressure fuel line.
it may sound a bit harsh,but i mean no disrespect.
i don't consider myself an idi expert by any means,but im fairly confident this is what one would suggest.
7.3 L Ford Diesel Fuel Injectors Fuel Pumps Accessories
before driving the truck home,or have it towed home.
if you can't afford either of these options,then it's highly likely you can't afford to drive and properly maintain the HD diesel truck anyway and you should consider a different truck.
expert advice wouldn't be to pinch off the line nor temporarily run low pressure fuel hose on a high pressure fuel line.
it may sound a bit harsh,but i mean no disrespect.
i don't consider myself an idi expert by any means,but im fairly confident this is what one would suggest.
Thread Starter
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Tuned
Joined: Sep 2010
Posts: 485
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From: Boise Idaho
Good advice. I just don't know if I want to trust a Patriots fan........... 
.
I found my extra lines. See, I can afford to maintain a HD diesel. I just go shopping in the ole' garage where the cheap stuff is.
Thanks for the good advice. Luckily it's one of the easy lines, so it shouldn't be to hard to replace.
.I found my extra lines. See, I can afford to maintain a HD diesel. I just go shopping in the ole' garage where the cheap stuff is.
Thanks for the good advice. Luckily it's one of the easy lines, so it shouldn't be to hard to replace.
Fleet Owner
Joined: Jul 2006
Posts: 20,357
Likes: 813
From: Mi'kma'ki
lol! we can't be trusted i tell you! 
two more games to get to the super bowl! come on PATS! 
spare parts is always good.if you thought you had the parts,im not sure why you bothered asking on what to do though lol.
two more games to get to the super bowl! come on PATS! spare parts is always good.if you thought you had the parts,im not sure why you bothered asking on what to do though lol.
Thread Starter
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Tuned
Joined: Sep 2010
Posts: 485
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From: Boise Idaho
. Either way you all were an excellent help as always.Bronco's will bring you down! Probably not though. Tom Brady is my favorite quarterback from a skill and style stand point but I have to go with my Broncos. If you guys had a better defense than it would be another possible undefeated year I have know dought. Watch out for that diesel like arm of Tebow. It's a long stroke but it can get ya' if your not careful!
Enjoy the game. I know I will.
Fleet Mechanic
Joined: Jan 2011
Posts: 1,709
Likes: 4
From: 8600 ft in Colo
The IP is a positive displacement pump, so it will keep building pressure until something gives. I don't know if it has any over-pressure protection, but even if it does, it can't be good for it...