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450 foot pounds of tourque???

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Nate8N

05-12-2008 16:49:42

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I was reading in the FO-4 service manual for my 49 8N that 450 foot pounds of tourque is needed on the rear axle nuts.

Hows a guy supposed to to this?

Most torque wrenches dont go up this far, and I am fairly sure I couldn't pull that much without walking funny the next day.

Or is it just two grunts and a fart and its good??

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roger '40 9n

05-13-2008 05:58:26

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Re: 450 foot pounds of tourque??? in reply to Nate8N, 05-12-2008 16:49:42

If you really want to measure 450 foot pounds you can use the trick that the Car Guys on radio suggested.

Put a five foot cheater (extension) bar on your wrench. Stand on a bathroom scale. Hold the bar at 4 and a half feet from the nut. Pull down till your weight goes down by 100 pounds.

Roger

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Dean

05-13-2008 04:25:10

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Re: 450 foot pounds of tourque??? in reply to Nate8N, 05-12-2008 16:49:42

Nate:

I use a 2" combination wrench, about 20"-24" long.

I put the tractor in low underdrive, tightly lock both brakes and simply jump up and down on the open end of the wrench 2 or 3 times. I've never stripped one of the nuts/axles nor had one work loose.

Dean

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Mark Pearce

05-12-2008 23:58:03

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Re: 450 foot pounds of tourque??? in reply to Nate8N, 05-12-2008 16:49:42

Nate, Oh this reminds me of somethin. I went down to my local steel yard once. I bought a good lookin 20' joint of 2"x3" galvanized schedule 80 steel tubing to make me a nice new tung for my boat trailer. The ole trailer was lookin kind tired in the middle so I grafted the tubing all the way to the back cross support of the trailer. So the tung was now the main backbone of the trailer. I put the darn new hitch up there and noticed the tubing had a twist to it. I figure heck with that new 48" ridgid pipe wrench and a ten foot cheeter bar I could get that twist out. There I was about eight feet in the air bouncin on this cheeter bar gettin this twist out. When that darn brand new 48" ridgid pipe wrench broke all I saw was colored stars. I fell/rocketed face first into the rocks and dirt in the drive way. I figure I was out fer about thirty minutes because some bird came by and crapped on my forehead. Lucky for me I was under a tree and not out in the sun. Did you know bird crap burns like some kind warm acid or somethin? Be carefull with cheeter bars and what you cheet em with!!!!!

Mark.

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JMOR

05-12-2008 22:43:17

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Re: 450 foot pounds of tourque??? in reply to John (TR), 05-12-2008 16:49:42

Dell (WA) said: (quoted from post at 00:46:13 05/13/08) Nate..... .."Or is it just two grunts and a fart and its good??"..... ..giggle, yeah thats close-nuff to 450ft/lbs on 4-5ft cheater bar. Only iff'n yer sphincterly challenged, would I worry about it. I would NOT rent a 600# torque wrench. You won't strip yer axle threads, maybe yer nutts. And even then yer NUTTS have a SAFETY wire loop that keeps breakin' and fallin' out and that mucks up yer splined HUB. And the next thing you know yer tires are rockin' sidewize.
One time as a Boeing Flight Test Instrumentation Engr, I had to mount some accelerometers to measure some vibration on the #1 bearing of this new Jet Engine behind the Fanblades you see in the nacelle. Guess what??? Just ONE HUMONGOUS NUT!!! holds that fan on. It is torqued to 3-1/2 foot/TONS of torque with an air-drive drill motor in about 8-hrs of irritatin' whinnin' away on 9" engine shaft NUT (3-stages of torque multiplication gearbox) BTW, the big-nut is NOT hex-head, it has 24-splines ..... ...Dell, retired Boeing Flt Test Engr

Ain't likely anybody gonna top you on that one!

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Dell (WA)

05-12-2008 21:46:13

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Re: 450 foot pounds of tourque??? in reply to Nate8N, 05-12-2008 16:49:42

Nate..... .."Or is it just two grunts and a fart and its good??"..... ..giggle, yeah thats close-nuff to 450ft/lbs on 4-5ft cheater bar. Only iff'n yer sphincterly challenged, would I worry about it. I would NOT rent a 600# torque wrench. You won't strip yer axle threads, maybe yer nutts. And even then yer NUTTS have a SAFETY wire loop that keeps breakin' and fallin' out and that mucks up yer splined HUB. And the next thing you know yer tires are rockin' sidewize.

One time as a Boeing Flight Test Instrumentation Engr, I had to mount some accelerometers to measure some vibration on the #1 bearing of this new Jet Engine behind the Fanblades you see in the nacelle. Guess what??? Just ONE HUMONGOUS NUT!!! holds that fan on. It is torqued to 3-1/2 foot/TONS of torque with an air-drive drill motor in about 8-hrs of irritatin' whinnin' away on 9" engine shaft NUT (3-stages of torque multiplication gearbox) BTW, the big-nut is NOT hex-head, it has 24-splines ..... ...Dell, retired Boeing Flt Test Engr

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Dan

05-12-2008 19:36:35

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Re: 450 foot pounds of tourque??? in reply to Nate8N, 05-12-2008 16:49:42

I have a 2" combination wrench that is 2' long and I hang my 190 lb. body off the very end until I can dangle from it. I figure that is good enough.

Dan

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Dunk

05-12-2008 19:02:43

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Re: 450 foot pounds of tourque??? in reply to Nate8N, 05-12-2008 16:49:42

I think it was a Thorson (sp)...(good tools)

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JMOR

05-12-2008 18:59:48

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Re: 450 foot pounds of tourque??? in reply to Jim SC, 05-12-2008 16:49:42

Dunk said: (quoted from post at 21:48:00 05/12/08)
JMOR said: (quoted from post at 22:22:44 05/12/08)
Nate8N said: (quoted from post at 19:49:42 05/12/08) I was reading in the FO-4 service manual for my 49 8N that 450 foot pounds of tourque is needed on the rear axle nuts.

Hows a guy supposed to to this?

Most torque wrenches dont go up this far, and I am fairly sure I couldn't pull that much without walking funny the next day.

Or is it just two grunts and a fart and its good??

Have a 'green' baler that needs 1050 lbs-ft. That is my skinny body hanging like a chimp on a 7 ft pipe slipped over a socket/breakover.

I broke my 3/4 pull handle with about a 7' cheater on my bushog nuts.

It didn't even bother that aluminum 3/4 drive ratchet I have though, took em right off.

That's why you use Craftsman, just take it back & swap for new one. No charge.

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Dunk

05-12-2008 18:48:00

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Re: 450 foot pounds of tourque??? in reply to Gaspump, 05-12-2008 16:49:42

JMOR said: (quoted from post at 22:22:44 05/12/08)
Nate8N said: (quoted from post at 19:49:42 05/12/08) I was reading in the FO-4 service manual for my 49 8N that 450 foot pounds of tourque is needed on the rear axle nuts.

Hows a guy supposed to to this?

Most torque wrenches dont go up this far, and I am fairly sure I couldn't pull that much without walking funny the next day.

Or is it just two grunts and a fart and its good??

Have a 'green' baler that needs 1050 lbs-ft. That is my skinny body hanging like a chimp on a 7 ft pipe slipped over a socket/breakover.

I broke my 3/4 pull handle with about a 7' cheater on my bushog nuts.

It didn't even bother that aluminum 3/4 drive ratchet I have though, took em right off.

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JMOR

05-12-2008 18:22:44

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Re: 450 foot pounds of tourque??? in reply to Den N Ms, 05-12-2008 16:49:42

Nate8N said: (quoted from post at 19:49:42 05/12/08) I was reading in the FO-4 service manual for my 49 8N that 450 foot pounds of tourque is needed on the rear axle nuts.

Hows a guy supposed to to this?

Most torque wrenches dont go up this far, and I am fairly sure I couldn't pull that much without walking funny the next day.

Or is it just two grunts and a fart and its good??

Have a 'green' baler that needs 1050 lbs-ft. That is my skinny body hanging like a chimp on a 7 ft pipe slipped over a socket/breakover.

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Dunk

05-12-2008 17:23:22

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Re: 450 foot pounds of tourque??? in reply to Nate8N, 05-12-2008 16:49:42

Let me correct that!!

It was TOH, and gahorN.

********************

Torque is simple. 450 lb-ft torque = me (180#) doing pull-ups on the end of a 2.5 ft cheater bar (180lb x 2.5ft = 450 lb-ft).
TOH
********************

gahorN
If you have a 1-foot long wrench placed on a fasterner/nut/bolt and put 10 lbs of pressure on the opposite end of that wrench, you are applying 10-ft-lbs of torque.

(post gets confusing after that)

If you have a 100 ft lb torque wrench, and you have a 3-ft long cheater with one end (the far end) on the fasterner and the torque wrench applying 100 lbs of torque on a fastener at the near-end of the cheater... you will be multiplying the 100 by 3 feet.... so you'd be applying 300 ft lbs at the far end.

Now, if you were to build a 4 and a half-foot cheater with a socket to fit on your fastener at the far end, and a nut/bolt/whatever your torque-wrench could grasp welded onto the near end of the cheater.... :wink:
*********************

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Dunk

05-12-2008 17:15:32

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Re: 450 foot pounds of tourque??? in reply to Nate8N, 05-12-2008 16:49:42

According to how "bigger ole boy you are"

TOH (I'm pretty sure that is right) just did an awesome write up on this that should be put somewhere easy to find.

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Paul Kingsbury

05-12-2008 17:15:15

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Re: 450 foot pounds of tourque??? in reply to Nate8N, 05-12-2008 16:49:42

450 lbs of Tq. Put 100 lbs of tq. at 4 1/4' using a length of pipe over your socket and breaker wrench you will have 450 lbs of tq. Using a long bar doesn't take as much effort. If you can't push 100 lbs, than use a 9 foot cheater with 50 lbs of tq.....

Have fun...

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Sean (TX)

05-12-2008 16:57:14

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Re: 450 foot pounds of tourque??? in reply to Ed S. (IL), 05-12-2008 16:49:42

Breaker bar with a 4' cheater...Pull hard!!

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Den N Ms

05-12-2008 17:54:56

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Re: 450 foot pounds of tourque??? in reply to Sean (TX), 05-12-2008 16:57:14

Or you could use a torque multiplier like this,I have one that I used to use to torque the old cummins 220-250 main bolts 600 ftlbs,grunt.3/4 drive on the business end 1/2 drive on the torque wrench side.

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Den N Ms

05-12-2008 17:57:53

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Re: 450 foot pounds of tourque??? in reply to Den N Ms, 05-12-2008 17:54:56

I forgot its a,Torque Multiplier, X4, Geared Head, Bar Reaction, 1000 ft. lb. Output

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Bob Harvey

05-12-2008 18:55:02

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Re: 450 foot pounds of tourque??? in reply to Den N Ms, 05-12-2008 17:57:53

They gots them at Harbour Freight for $17.99 ?????

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36 coupe

05-13-2008 02:44:16

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Re: 450 foot pounds of tourque??? in reply to Bob Harvey, 05-12-2008 18:55:02

HF tool will get you out cold with a bunch of seagull crapping on your head.

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Den N Ms

05-12-2008 19:54:27

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Re: 450 foot pounds of tourque??? in reply to Bob Harvey, 05-12-2008 18:55:02

3/4 inch I dont think so ,1000 ft Lbs I dont think so.17.99 I dont think so.More like 19.99 and 1/2 inch drive for car lug nuts MAYBE if it don't break and hurt your hand. I've had that one over 30 years and its still like new,100ft Lbs in =400 ft Lbs output.Snapon over 400.00 30 or more years ago.

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