7050 no fuel to filter
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=167977
Printed Date: 07 Apr 2026 at 2:03pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 7050 no fuel to filter
Posted By: DIESEL
Subject: 7050 no fuel to filter
Date Posted: 02 Feb 2020 at 5:06pm
 I recently bought a 7050 that we believe to be fairly low houred for a thousand dollars. The previous owner said it kept losing prime. I tore into it today and I don't have any fuel coming from the tank to the filter, I blew air into it backwards and can hear it bubbling in the tank. What am I missing guy's? Thanks |
Replies:
Posted By: DIESEL
Date Posted: 02 Feb 2020 at 5:18pm
| Its probably a dumb question, I suppose the primer pulls a vacuum on the fuel line and flows the fuel? On my 7010 if I undo the line at the filter it runs on its own. |
Posted By: DougG
Date Posted: 02 Feb 2020 at 5:23pm
| ,, |
Posted By: Boss Man
Date Posted: 02 Feb 2020 at 5:24pm
| I ran into that on a Case. After much frustration I replaced the plastic line and fittings and didn't have any more problems. Not sure if the fittings were leaking air or the plastic line became porous. |
Posted By: DrAllis
Date Posted: 02 Feb 2020 at 5:27pm
| 7030/7050's got their fuel from sucking it up thru a standpipe in the left tank. That was a bad design and then they went to getting the fuel supply from the crossover hose/tube down low between the two tanks. That was much less problematic, so if it hasn't been changed over to the bottom draw style, do that first. They also went to a 1/2" sized hose when they went to bottom draw instead of 1/4" plastic line. |
Posted By: DIESEL
Date Posted: 02 Feb 2020 at 6:23pm
| Thanks Doc, that looks easy enough to do, I see the bung in the bottom. Then I'll just have to reduce the line down to fit my glass filter base. |
Posted By: DrAllis
Date Posted: 02 Feb 2020 at 6:28pm
| Make sure the passageway in the base is clear. I have seen debris get that far and get wedged in the filter base. |
Posted By: LeonR2013
Date Posted: 02 Feb 2020 at 7:11pm
| A stand pipe is not a good idea no matter who built it. Leon |