Shops, Barns, Varmints, and Trucks - UC spark plug removal

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UC spark plug removal

Printed From: Unofficial Allis
Category: Other Topics
Forum Name: Shops, Barns, Varmints, and Trucks
Forum Description: anything you want to talk about except politics
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=150765
Printed Date: 28 Aug 2025 at 3:07pm
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Topic: UC spark plug removal

Posted By: Brian_M
Subject: UC spark plug removal
Date Posted: 25 May 2018 at 10:11am

Hey guys,

My father called the other day and told me he was having trouble finding a socket/wrench to remove the spark plugs out of an Allis model UC. I was wondering if any of you happen to know the proper tool to remove the plugs from the tractor. Thanks for the help!

Replies:

Posted By: allisrutledge
Date Posted: 25 May 2018 at 10:17am

I think I use a 7/8 deep well. Might be 15/16 can't remember. Just use a deep well socket and hold it as straight with the plug as you can.

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Allis Chalmers still exist in my mind and barns

Posted By: CAL(KS)
Date Posted: 25 May 2018 at 10:25am

yes 7/8 or 15/16 I cant remember for sure either but it cant be a thick walled impact socket.

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Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20

Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15

Posted By: JoeM(GA)
Date Posted: 25 May 2018 at 11:32am

Just went and checked, it's 15/16 deep thin wall, still a pain, and one of mine is easier to grab the socket with vice grips to turn

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Allis Express North Georgia
41 WC,48 UC Cane,7-G's,
Ford 345C TLB