ft.lbs. vs in.lbs.

N

nate chase

New member
Apr 26, 1999
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Can anyone tell me the relationship between ft.lbs. and in.lbs.? I went to
buy a small torque wrench the other day for exhaust manifolds, etc. and all
they had was one that measures in in.lbs. and my measurement was 25-35
ft.lbs.... which is WAY too little for my cheapy 140 ft.lb. 3/4" drive
torque wrench that I got to do my Alcoas ($20 @ Princess Auto).

Is it times 12 like inches to feet relationship (as I would guess)? Can't
seem to find this on the net anywhere. Thanks.

Nate '75GB (Happy Memorial Day everyone!) Omaha
 
>Can anyone tell me the relationship between ft.lbs. and in.lbs.? I went to
>buy a small torque wrench the other day for exhaust manifolds, etc. and all
>they had was one that measures in in.lbs. and my measurement was 25-35
>ft.lbs.... which is WAY too little for my cheapy 140 ft.lb. 3/4" drive
>torque wrench that I got to do my Alcoas ($20 @ Princess Auto).
>
>Is it times 12 like inches to feet relationship (as I would guess)? Can't
>seem to find this on the net anywhere. Thanks.
>
>Nate '75GB (Happy Memorial Day everyone!) Omaha

Nate - the torque reading is the force times the distance from the
pivot point to the point where the force is applied.

For example if your handle is 12 inches long and you apply 1 pound of
pressure at a right angle to the end of the handle you have applied
12 inch-pounds of torque. This is equivalent to 1 ft-pound of torque
(1 pound applied 1 foot from the pivot). So, 25 foot-pounds is
equivalent to 300 inch-pounds.

You wouldn't use an inch-pound torque wrench much. I have one but
rarely use it. The most useful torque wrench is probably a 1/2"
drive 0 to 100 or 0 to 150 foot-pound one. You should be able to
measure a 25 ft-lb torque with that one.

By the way, you can double the range of a torque wrench with the use
of a lever that has a square drive stud on one end and a square hole
in the other end with the centers one foot apart. Put the socket on
the square drive and put the torque wrench in the hole. Just double
the reading of the torque wrench. I made one of these several years
ago out of a piece of 1/4" x 1" flat steel stock and it has come in
handy many times where I needed a torque that was in excess of the
capacity of my 1/2" torque wrench.

Emery Stora
77 Kingsley
Santa Fe, NM
 
Hmmm, You mean like the wheels on a GMC?

Thanks, Emery.

Hey Tom, Warner;
I betcha there's 50 or 100 netters out there who would love to have such a
lever. How 'bout it?

Dave

>Nate - the torque reading is the force times the distance from the
>pivot point to the point where the force is applied.
>
>For example if your handle is 12 inches long and you apply 1 pound of
>pressure at a right angle to the end of the handle you have applied
>12 inch-pounds of torque. This is equivalent to 1 ft-pound of torque
>(1 pound applied 1 foot from the pivot). So, 25 foot-pounds is
>equivalent to 300 inch-pounds.
>
>You wouldn't use an inch-pound torque wrench much. I have one but
>rarely use it. The most useful torque wrench is probably a 1/2"
>drive 0 to 100 or 0 to 150 foot-pound one. You should be able to
>measure a 25 ft-lb torque with that one.
>
>By the way, you can double the range of a torque wrench with the use
>of a lever that has a square drive stud on one end and a square hole
>in the other end with the centers one foot apart. Put the socket on
>the square drive and put the torque wrench in the hole. Just double
>the reading of the torque wrench. I made one of these several years
>ago out of a piece of 1/4" x 1" flat steel stock and it has come in
>handy many times where I needed a torque that was in excess of the
>capacity of my 1/2" torque wrench.
>
>Emery Stora
>77 Kingsley
>Santa Fe, NM
 
They are based out of Omaha, NE. They have a really great catalog and are a
good lead with items like Harbor Freight and Northern Hydraulics has. They
usually have everything in stock and I love their warehouse. I can't get
outta there for less than $50. I always find an armload of stuff! To get a
catalog call 1-888-460-7989. HTH

Nate '75GB (90 degrees... geez!) Omaha

BTW... thanks to all who replied on the in.lbs. to ft.lbs question.

>

Date: Mon, 29 May 2000 06:31:00 -0300
From: "Homebase"
Subject: Re: GMC: ft.lbs. vs in.lbs.

Nate

>>
Princess Auto in Canuckland ??

Mike B Antigonish, NS
 
> Nate
>
> >>
> Princess Auto in Canuckland ??
>
> Mike B Antigonish, NS


Mike

Princess Auto has a store in Dartmouth's Burnside industrial park. They
recently
opened one here in Moncton and I'm like a kid in a candy store !
BTW where is the nearest trustworthy place to get a 6 wheel alignment?
I would like to find some place closer than New Hampshire.

Thanks
Dan Vanderknaap
76 Palm Beach
 
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