Farm Equipment - Temperature Sensor fitting broke

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Temperature Sensor fitting broke

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=108034
Printed Date: 11 Sep 2025 at 2:47am
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Topic: Temperature Sensor fitting broke

Posted By: mherndon
Subject: Temperature Sensor fitting broke
Date Posted: 24 Jun 2015 at 6:53pm

I inherited my families AC D-15 II this year. I got it started a couple of times, but I think the switch is failing. When I did get it started, it ran better than I can ever remember. The oil gauge, amp gauge and temp gauge were all in bad shape or not working. I ordered AC replacement gauges and installed the oil and amp first then went to the temperature gauge. When trying to turn the temp threaded adapter out of the block, the thread broke away from the nut top. I will have to get an easy out and try some heat to break it lose. If that doesn't work, drilling may be an option. Any advice will be appreciated.

Mark

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D-15, Old dealer in Smithville, TN

Replies:

Posted By: DiyDave
Date Posted: 24 Jun 2015 at 7:42pm

First thing I would do is to try Kroil, or atf/acetone. If there is meat enough left, use a pair of American vice grips, and just tap back and forth. If not, use a Spline type extractor, of the right size, like this set: https://store.snapon.com/Combination-Extractor-Sets-Extractor-Set-20-pcs--P630634.aspx" rel="nofollow - https://store.snapon.com/Combination-Extractor-Sets-Extractor-Set-20-pcs--P630634.aspx

I would use a small (3/8") impact gun, or a battery drill impact gun, and just rattle on it at a low torque setting.

if that doesn't seem to work, I would go to a pipe nipple screw type extractor, like these:

http://www.harborfreight.com/catalogsearch/result?q=pipe+nipple+extractor+set" rel="nofollow - http://www.harborfreight.com/catalogsearch/result?q=pipe+nipple+extractor+set

Posted By: sandman2234
Date Posted: 25 Jun 2015 at 6:59am

Patience, is the first requirement of pulling a broken screw...
David from jax

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A proud member of the Allis Express movement!
Northeast Florida