what size die do I need? (n5help)
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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=113268
Printed Date: 14 Sep 2025 at 3:33pm
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Topic: what size die do I need? (n5help)
Posted By: aaronac1
Subject: what size die do I need? (n5help)
Date Posted: 13 Oct 2015 at 8:55pm
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I had a bearing go out on the variable speed pulley on the pivot shaft and the threads that holds the nut that keeps the bearing in place needs chased. Would or can anyone find out what size die o would need. In the parts book it only says nut with a part number 0921138 but does not say what size it is exactly. I think it is either 3/4 10 or 3/4 16 but im not sure ------------- Wd-45 D-17s4 170 185 190xt 7045 8070 |
Replies:
Posted By: DrAllis
Date Posted: 13 Oct 2015 at 9:17pm
| Pretty sure it's "fine" threaded. |
Posted By: Lynn Marshall
Date Posted: 13 Oct 2015 at 9:17pm
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Pretty sure that it's fine threaded. Wow, what are the odds of that?? If I hadn't typed the word that, I might have beat the Dr. |
Posted By: MACK
Date Posted: 13 Oct 2015 at 9:33pm
| Get a thread file, if you don't have a die that fits. MACK |
Posted By: SteveM C/IL
Date Posted: 13 Oct 2015 at 10:16pm
| Good call Mack. Old school and works.Takes effort and attention though. |
Posted By: Gerald J.
Date Posted: 13 Oct 2015 at 10:37pm
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Often bearing retaining nuts are special extra fine, as fine as 32 per inch, more often 24 per inch at that size. The thread file can solve many problems. The die may not get started right if the threads are beat and make a worse mess than the thread file. A collection of smaller bolts with threads of 16, 18, 20, 24 per inch can be used to gauge the original threads to see what thread file is needed. The right sizes will nest neatly the wrong threads won't. Gerald J. |
Posted By: orangereborn
Date Posted: 14 Oct 2015 at 9:18am
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aaronac1 wrote:Posted By: DougS
Date Posted: 14 Oct 2015 at 9:37am
If you are holding the bolt in your hot hands you can measure 1/2 inch of length and count the number of threads in that half inch. Multiply this number times two. This will get you very close to the thread count of the bolt. Measure across the bolt and this will get you the bolt diameter. Pick the standard size that is closest to your measurements. Your thread count should be within one or two of a standard count for that diameter. I would think it would be cheaper to buy another bolt instead of a die. |
Posted By: Dick L
Date Posted: 14 Oct 2015 at 12:01pm
| I like a knife file better than the threads files for repairing dinged threads. I have some thread files but they seem to take more time. |
Posted By: thendrix
Date Posted: 14 Oct 2015 at 2:10pm
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I'm a fan of a triangle file if the threads are big enough to use one. ------------- "Farming is a business that makes a Las Vegas craps table look like a regular paycheck" Ronald Reagan |
Posted By: Walker
Date Posted: 14 Oct 2015 at 4:36pm
| Three cornered file works for me. |
Posted By: Coke-in-MN
Date Posted: 14 Oct 2015 at 4:50pm
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rather that a die - thread chasers also work - like a not of proper size and thread and work in many cases . I have thread files but have used a tap with the right thread and just use edge of tap to scrape threads clean - takes some effort but works . ------------- Life lesson: If you’re being chased by a lion, you’re on a horse, to the left of you is a giraffe and on the right is a unicorn, what do you do? You stop drinking and get off the carousel. |
Posted By: desertjoe
Date Posted: 14 Oct 2015 at 6:53pm
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I use the fine files that came in a set ($6 for set of 8 files) from HF and surprisingly have lasted a long time and still cut good. Have successfully fixed a lot of buggered threads,,,, 
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