Farm Equipment - Grease fittings

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Grease fittings

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=114084
Printed Date: 14 Sep 2025 at 3:34pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Grease fittings

Posted By: Ted in NE-OH
Subject: Grease fittings
Date Posted: 01 Nov 2015 at 7:41pm

I have a 1960's AC tractor. What would be the thread sizes for the grease fittings. Some are small and some larger that take a 7/16 wrench? Any suggestions as to the best way to get broken off grease fittings out?

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CA, WD, C, 3 Bs, 2 Gs, WC, I-400, 914

Replies:

Posted By: DiyDave
Date Posted: 01 Nov 2015 at 7:46pm

Most likely the bigger holes are 1/8"NPT, 27 TPI. Smaller ones might be 1/4-28 bolt thread. To get 'em out, generally a pair of vice grips on whole ones, sheared off ones can generally be removed with easy outs (bolt extractors). Don't generally need to drill a hole, if they are sheared off, cause they already have a hole in them...

Posted By: Ted in NE-OH
Date Posted: 01 Nov 2015 at 8:39pm

Thanks, greatly appreciated.

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CA, WD, C, 3 Bs, 2 Gs, WC, I-400, 914