HD5 Fuel Lines / Fittings?
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=194940
Printed Date: 31 Oct 2025 at 5:01am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: HD5 Fuel Lines / Fittings?
Posted By: AndyG
Subject: HD5 Fuel Lines / Fittings?
Date Posted: 02 May 2023 at 9:45am
 Good Morning, does anyone know where to get fuel lines built that will work on the HD5 line in these pictures? I have 3 I need to replace , the one pictured is about 11 inches long, the other 2 are about 29 inches long overall. Both Male and female ends. The all appear to have the same threads. The manual I have lists some threads as 5/8-24EF. Since the OD measures 5/8" (.625") I assume these ends are male and female 5/8-24.Any leads on where to get them or build these would be MUCH appreciated?  |
Replies:
Posted By: JC-WI
Date Posted: 02 May 2023 at 10:57am
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I hate to tell you this, but I believe those fitting are made out of no-obtainium. I had to replace some lines and I split and removed the sleeve over the hose and pulled the fitting out of the rubber, then pushed new hose onto the barb and put on a hose clamp. And did not waste the fitting. I couldn't find them in the stores either.  As for the lines that came from or went to the tank with copper lines, I cut back a ways from fitting and put a sleeve over that and the new line and soldered them and that held.
------------- He who says there is no evil has already deceived himself The truth is the truth, sugar coated or not. Trawler II says, "Remember that." |
Posted By: JC-WI
Date Posted: 02 May 2023 at 11:04am
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I hate to tell you this, but I believe those fitting are made out of no-obtainium. I had to replace some lines and I cut and removed the sleeve over the hose and pulled the fitting out of the rubber, then pushed new hose onto the barb and put on a hose clamp. And did not waste the fittings. I couldn't find them in the stores either. As for the lines that came from or went to the tank with copper lines, I cut back a ways from those fitting and put a sleeve over the pipe and the new line and soldered them and that held.
------------- He who says there is no evil has already deceived himself The truth is the truth, sugar coated or not. Trawler II says, "Remember that." |
Posted By: AndyG
Date Posted: 02 May 2023 at 11:08am
| Thank You, JC-WI. I figured that is where I was heading. Or re-flaring the tube and using current standard fittings. Appreciate the response and sharing this work around! |
Posted By: Ray54
Date Posted: 02 May 2023 at 11:20am
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I have done as JC did with new hose. I believe the thread is a standard fine bolt thread. So it would be possible to build something if really backed into the corner. It would be interesting to know if that hose was more Detroit Diesel or just a AC thing.
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Posted By: Coke-in-MN
Date Posted: 02 May 2023 at 7:28pm
 Some of the fittings i ended up using part of old part and brazing a new standard fitting to old . . On others I just took it back to end where it was pipe thread and made up new lines to replace all the old . Same with oil filter , I made a mount up and now use standard screw on canister fittings with 3/4 " thread . ------------- Life lesson: If you’re being chased by a lion, you’re on a horse, to the left of you is a giraffe and on the right is a unicorn, what do you do? You stop drinking and get off the carousel. |
Posted By: AndyG
Date Posted: 03 May 2023 at 11:19am
| Thanks everyone for the help, let's consider this case closed until the next time! |