185 fuel guage
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=170660
Printed Date: 26 Aug 2025 at 6:29am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 185 fuel guage
Posted By: cowkicker
Subject: 185 fuel guage
Date Posted: 29 Apr 2020 at 10:53am
| 185 fuel gauge not working. Tank is completely full and gauge only shows 3/8 full. When working sending unit by hand through the complete range, gauge will only go from empty to 3/8. Sending unit ohms at 0 empty and 29 full. With sending unit wire unhooked, gauge shows full and when grounding the sending unit wire, the gauge reads empty. Any suggestions |
Replies:
Posted By: DMiller
Date Posted: 29 Apr 2020 at 11:42am
| Sender has failed, the little resistance strip is shorted internally. IF buy a replacement as I had, will find the float leer either on backward or inverted on the sender resistance head where stay full all the time, took quite a bit of adjusting to make work reasonably well. |
Posted By: cowkicker
Date Posted: 29 Apr 2020 at 7:58pm
| Gauge hasn't worked in a while , but when it did work it worked correctly. I took the sending unit out and float had come off. When I had the old sending unit in hand , I hooked the wires backup and that is when I noticed that the gauge only went to 3/8s full. Being I had to have float I ordered a new unit from agco and it is doing the same thing with the gauge. Both units ohm the same. What are chances new unit would also be bad in exactly the same way? Anyway to check a gauge other than grounding it? Anyway to check with meter across the posts on the gauge? |
Posted By: bradley6874
Date Posted: 29 Apr 2020 at 8:15pm
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If holding in hand make sure its got a good ground. Wire conections are the only thing common to both reading the same incorrect level ------------- You can wash the dirt off the body but you can’t wash the farmer out of the heart and soul |
Posted By: cowkicker
Date Posted: 29 Apr 2020 at 9:16pm
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bradley6874 wrote: