Random thought, there's no way that the hoses are sealed around the threads of those bolts. If you must have them, cut the threads off the bolts and shove them in so that the hose seals around the round part of the bolt.
Could fuel feed pump cause air in fuel line?
- Thread starter Paraglider
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- #23
Thanks.
I'm assuming you are talking to me. My plans were to eventually find the leaks, but for no more than I used the pickup around the property the job wasn't high on my priority list. Then, the transmission went out. So, the job got put even further back on my to do list. I now have a used transmission that I think is still good, so sometime this winter (I hope) I will get time to change transmissions. At that time then the air leaks will get moved up on my list.
Don
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- #25
I let the guys in the diesel forum know but wanted to let some of you who are not part of that discussion know that I followed Handcannon and RoscoFJ73's advice to isolate the fuel system by connecting my own and it started and ran so nicely. It was like music to my ears--maybe Bethoven's 5th. 
Thanks for the advice!!
Now I just have to figure out where the air is getting in, so I'm working on that in the diesel forum. I think the title of the discussion is "air in fuel lines" or something similar for anyone who wants to follow that (in case you don't know as much as some of these experts).
It's a GOOD DAY!! My HJ47 has it in her!
Thanks for the advice!!Now I just have to figure out where the air is getting in, so I'm working on that in the diesel forum. I think the title of the discussion is "air in fuel lines" or something similar for anyone who wants to follow that (in case you don't know as much as some of these experts).
It's a GOOD DAY!! My HJ47 has it in her!
- Thread starter
- #26
A quick update for anyone not following the thread in the diesel forum:
Success!! It's running! I mentioned yesterday that I went direct from the fuel canister to the lift pump and it ran fine. This morning in the wee hours as my mind was churning, it came to me that I could go from the canister to the sedimenter and see what happens, and then if that got good results, from the switch valve to the lift pump direct. This is basically what you were telling me before. It's just that between the tank and the lift pump I had the switch valve and the sedimenter and so wasn't really thinking about the principle (of isolation). Sure enough, the switch valve direct to the lift pump revealed the problem--air and more air. So then I thought to test it from the tank, I'd by-pass the switch valve to make sure that was it and the only problem. I then started to prime it and it just kept bringing air in and I thought "This shouldn't be happening." So I checked the connection at the sedimenter and it was fine and then I remembered--I never connected the tank side. Once connected and primed, it ran just fine and so I took it for a short spin (got to find my wife to take her back to the shop). You see, my HJ47 has been at a commercial diesel shop for 3 weeks and I finally got tired of their not doing anything because they were always busy with their "bread and butter" commercial trucks, so I turned to you guys to help me out. You guys were the brains and I was the hands. This is a great day! Thanks to all.
Success!! It's running! I mentioned yesterday that I went direct from the fuel canister to the lift pump and it ran fine. This morning in the wee hours as my mind was churning, it came to me that I could go from the canister to the sedimenter and see what happens, and then if that got good results, from the switch valve to the lift pump direct. This is basically what you were telling me before. It's just that between the tank and the lift pump I had the switch valve and the sedimenter and so wasn't really thinking about the principle (of isolation). Sure enough, the switch valve direct to the lift pump revealed the problem--air and more air. So then I thought to test it from the tank, I'd by-pass the switch valve to make sure that was it and the only problem. I then started to prime it and it just kept bringing air in and I thought "This shouldn't be happening." So I checked the connection at the sedimenter and it was fine and then I remembered--I never connected the tank side.
Once connected and primed, it ran just fine and so I took it for a short spin (got to find my wife to take her back to the shop). You see, my HJ47 has been at a commercial diesel shop for 3 weeks and I finally got tired of their not doing anything because they were always busy with their "bread and butter" commercial trucks, so I turned to you guys to help me out. You guys were the brains and I was the hands. This is a great day! Thanks to all.