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willysmjeeps.com :: View topic - M416 Lug Nut Torque
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M416 Lug Nut Torque

 
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1stSgtUSMC
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Joined: Jun 23, 2019
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Location: Maine then South Carolina

PostPosted: Sat Apr 18, 2020 5:51 pm    Post subject: M416 Lug Nut Torque Reply with quote

What is the M416 lug nut torque?

S/F

Kevin
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1952 M38
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RonD2
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PostPosted: Sat Apr 18, 2020 8:22 pm    Post subject: Reply with quote

Hi Kevin,
After you know the size of any fastener in question, you can easily Google "SAE torque table" and you'll get many hits for torque value for any nut-bolt combination, including M416 lug nuts --- which just happen to be 1/2-20 thread size/pitch (threads per inch). The M416 lug nuts also happen to be the same size as the lug nuts on your M38 and naturally use the same torque value.

The easy answer: 60-75 foot-pounds. I do 65 on mine.

I should add, because I don't know how familiar you are with mechanics, that lug nuts should be torqued every other one opposite each other. In other words, don't torque them each next to each other (going clockwise or counter-clockwise from one to the next).

Obtaining a set of tech manuals is essential to this hobby and will assist you greatly in identifying what size and material nut and bolt you're dealing with. I highly recommend them. Big difference between Grade 2, Grade 5, and Grade 8 nuts and bolts. Mix and match or use them in the wrong place or torque them to the wrong value and you're in for quite a learning experience!

I won't bother posting it because the answer would be the same, but I see you ask the same question over on the G503 forum.

Did you see my PM about jerry can racks?

Good luck!
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1951 M38 Unknown Serial Number
1951 M100 Dunbar Kapple 01169903 dod 5-51

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wesk
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PostPosted: Sat Apr 18, 2020 11:16 pm    Post subject: Reply with quote

Good advice Ron. Your torque spec was close but the TM 9-2330-251-14P dated 1962 under preventative maintenance page 5 says 60-65 Ft Lbs.
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Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php
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RonD2
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PostPosted: Sat Apr 18, 2020 11:32 pm    Post subject: Reply with quote

My bust! Embarassed I picked the spec out of the Willys Service Manual for lug nuts.

I keep forgetting that not all manuals were created equal, and I should know better by now!
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Ron D.
1951 M38 Unknown Serial Number
1951 M100 Dunbar Kapple 01169903 dod 5-51

“The only good sports car that America ever made was the Jeep."
--- Enzo Ferrari

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wesk
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PostPosted: Sat Apr 18, 2020 11:57 pm    Post subject: Reply with quote

The industry standard for selecting the correct torque is:

1 - Check maintenance instructions in the appropriate manual for a listed task specific torque value then use it correctly.

2 - If there was no task specific torque values listed in the maintenance procedure in the appropriate manual then go to that equipment's general torques source for the torque setting.

3 - If that equipment doesn't offer a general torque chart or their chart does not include the thread pitch/fastener diameter/fastener class needed then go to an industry standard torques chart.

For our member's needs I have all these charts in my photo album.
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Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php
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1stSgtUSMC
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PostPosted: Sun Apr 19, 2020 4:56 am    Post subject: Reply with quote

These are all great replys! I couldnt find the info in my TM. Thank you very much.

S/F

Kevin
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wesk
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PostPosted: Sun Apr 19, 2020 11:47 am    Post subject: Reply with quote

Kevin, there are several editions of that TM. Which one are you using? I have 3 of them, 1962, 1970 & 1990. I know there's also a 1985 out there. 1962 shows 60-65, 1970 shows no torque value, and 1990 shows an unbelievable 85 Ft Lbs.

Some links to PDF copies:

1990 - http://www.jatonkam35s.com/M105TMS/TM9-2330-251-14&P.pdf
1970 - http://jeepdraw.com/TM_9-2330-251-14.pdf

1962 - Is still loading on my cloud. As soon as it finishes loading I'll add it to our Downloads Page.
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Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php
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wesk
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PostPosted: Sun Apr 19, 2020 7:12 pm    Post subject: Reply with quote

I now have the 1962 manual loaded to our downloads page: http://www.willysmjeeps.com/v2/modules.php?name=Downloads&d_op=getit&lid=186
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Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php
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1stSgtUSMC
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PostPosted: Mon Apr 20, 2020 6:57 am    Post subject: Reply with quote

It scrazy, TM 9-2330-251-14&P dated Sept 1990 states 85 lbs....I wonder why sch a difference in torque?

S/F

Kevin
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1952 M38
1966 614M Trailer
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wesk
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PostPosted: Mon Apr 20, 2020 10:55 am    Post subject: Reply with quote

Probably the result of an un-acceptable lost wheel record over the years.
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Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php
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