Broken Bolt from loader mount D-15
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=163311
Printed Date: 01 Sep 2025 at 5:45pm Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Broken Bolt from loader mount D-15
Posted By: Brian S(NY)
Subject: Broken Bolt from loader mount D-15
Date Posted: 01 Aug 2019 at 5:14pm
I recently took the trip loader off my D-15. (It looks better without it) but eventually it will have to go back on as Its my only loader. Anyway I had a broken bolt in the side frame which I drilled and removed quite easily. I also have a broken bolt in the rear axle houseing (cast)... it is broken off flush... what is the best way to remove it? Drill it out? or weld another bolt on and see if it will back out? I have been spraying it with blaster everytime I walk by it.....? thanks
------------- God made man.Sam colt made man equal.
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Replies:
Posted By: DiyDave
Date Posted: 01 Aug 2019 at 5:44pm
Many variables in broken bolt removal, If you can post a few pictures, it will help. Also, what equipment you have and your experience level will play into the final decision...
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Posted By: Richardmo
Date Posted: 01 Aug 2019 at 5:49pm
If possible weld a washer to the bolt if flush. Then I would weld a nut to the washer. I Have been able to remove a few that way.
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Posted By: Brian S(NY)
Date Posted: 05 Aug 2019 at 8:15am
well as far as skill level I'd get someone else to do the welding,,,PIA spot between the fender and Tire :( I'm a little nervous about heating the cast... dont wanna crack it... thanks for your input... I'm going to have someone look at it for advice also :)
------------- God made man.Sam colt made man equal.
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Posted By: DiyDave
Date Posted: 05 Aug 2019 at 5:43pm
Post a picture, you'll get more free advice!
------------- Source: Babylon Bee. Sponsored by BRAWNDO, its got what you need!
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Posted By: ocharry
Date Posted: 05 Aug 2019 at 10:20pm
Some times....some times
I have used a die grinder and dressed down a cut off wheel to about the size of a quarter or so....grind a slot into the end of the broken bolt...then you can put a big screw driver into the slot and SOME TIMES you can back the bolt out
Before you grind the slot...if you can whack it good a time or two it will help also
Or use an impact driver with a screw driver head on it...then you get the whack and turn at the same time
Once it moves you should be able to turn it on out with a regular screw driver
I like screw drivers with square shanks so you can put a crescent wrench on it to help turn....but keep the pressure on it to keep it in the slot
Impact driver if you can get to it to whack it
My .02
Ocharry
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Posted By: Ray54
Date Posted: 06 Aug 2019 at 11:20am
Richardmo method has been the best for me. A very good way to put heat to the cast to break the rust bond. The heat seems to transfer down the broken bolt better than using a torch, but that is only a guess on my part. But yes in some places almost impossible to access. Good luck, cause luck is much easier than skill.
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Posted By: SteveM C/IL
Date Posted: 06 Aug 2019 at 1:04pm
You won't hurt it with heat.
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Posted By: Dusty MI
Date Posted: 06 Aug 2019 at 5:34pm
My theory is that when you weld a nut and/or washer to a broken stud in a cast iron block is, steel when heated tries to expand in all directions but can't expand sideways because of the cast iron, so it expands a little more length ways. Then when it cools, it shrinks from all directions.
Dusty
------------- 917 H, '48 G, '65 D-10 series III "Allis Express"
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Posted By: CTuckerNWIL
Date Posted: 06 Aug 2019 at 6:13pm
You won't hurt the cast by welding a washer on the broken bolt. Clean up the weld and weld a nut on the washer. The nut doesn't even have to be centered well on the old bolt, but doesn't hurt if it is I have blown broken bolts out of cast with a flame wrench before and seen it done many times, just no fun on a blind hole.
------------- http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF
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Posted By: Brian S(NY)
Date Posted: 08 Aug 2019 at 8:07pm
got it out. cleaned it up good and welded a nut on it... it kept twisting off, took about 4 nuts to get it a 1/4 in. the last nut we were able to back out the rest of the bolt. Someone BEFORE me had tried to get that bolt out before... there was a broken off easy out inside the broken off bolt. tried a picture but no luck
------------- God made man.Sam colt made man equal.
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Posted By: Tracy Martin TN
Date Posted: 08 Aug 2019 at 8:16pm
If an easy out will get one out, it wasn't tight anyway! JMHO, Tracy
------------- No greater gift than healthy grandkids!
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Posted By: Brian S(NY)
Date Posted: 08 Aug 2019 at 8:31pm
the easyout was broken off inside the broken off bolt from an earlier attempt to remove it. I wish I could share a pic. we didnt use an easyout. we welded a nut on it. The nut kept twisting off so each time we welded a new nut on and kept trying. finally got it.
------------- God made man.Sam colt made man equal.
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Posted By: CTuckerNWIL
Date Posted: 09 Aug 2019 at 7:28pm
Easy outs work great on a bolt that isn't buried in a blind hole. Sometimes the wrong bolt is put in a blind hole and the threads get locked up in the bottom, where the lead is on a tap. They can be a bugger to get out, and also are more prone to break, if the head isn't holding tight like it's supposed to.
Brian, did I see a fuzzy pic on facebook of the broken piece?
------------- http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF
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Posted By: Brian S(NY)
Date Posted: 09 Aug 2019 at 8:18pm
yup, tried to get a good picture but it came out fuzzy... I'm going to keep it as a conversation piece . nut welded onto broken bolt with broken easyout sticking out of it. :)
------------- God made man.Sam colt made man equal.
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