Shackles
05-05-2004, 10:19 PM
#91
Guest
Posts: n/a
Re: Shackles
But you just defined FORCE, not TORQUE. There is a difference you
know. I presume you know.
The only way you can get TORQUE on a shackle is to have
completely frozen shackle bolts in the bushings.
I'd also suggest that YOUR force model is completely backward.
The LONGER the shackle the LESS forward force is exerted on the
spring. Standard resolution of forces diagram.
L.W.(ßill) ------ III wrote:
> You really can't see the leverage exerted on the length of spring
> by a longer shackle? You will need to plug in the value at:
> http://www.trebuchet.com/hardware/load.html We know that for the shackle
> for the sake of argument the weight each shackle supports is about one
> eighth of the Jeep, and that the stock shackle is nearly straight down,
> in the short stock position, like a stilt, where nearly no energy is
> trying to straighten the spring out, but you put the longer shackle on
> it, it then tilts forward, that distance is the figure you may plug into
> your model, a force that wasn't there before, you may take a breaker bar
> and try to force it back underneath, but you'll soon learn that new
> force is now too great. I suggest taking one of your classes.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Roy J wrote:
>
>>Sure do, I teach this stuff at the undergrad level. That's why I
>>asked.
know. I presume you know.
The only way you can get TORQUE on a shackle is to have
completely frozen shackle bolts in the bushings.
I'd also suggest that YOUR force model is completely backward.
The LONGER the shackle the LESS forward force is exerted on the
spring. Standard resolution of forces diagram.
L.W.(ßill) ------ III wrote:
> You really can't see the leverage exerted on the length of spring
> by a longer shackle? You will need to plug in the value at:
> http://www.trebuchet.com/hardware/load.html We know that for the shackle
> for the sake of argument the weight each shackle supports is about one
> eighth of the Jeep, and that the stock shackle is nearly straight down,
> in the short stock position, like a stilt, where nearly no energy is
> trying to straighten the spring out, but you put the longer shackle on
> it, it then tilts forward, that distance is the figure you may plug into
> your model, a force that wasn't there before, you may take a breaker bar
> and try to force it back underneath, but you'll soon learn that new
> force is now too great. I suggest taking one of your classes.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Roy J wrote:
>
>>Sure do, I teach this stuff at the undergrad level. That's why I
>>asked.
05-05-2004, 10:19 PM
#92
Guest
Posts: n/a
Re: Shackles
But you just defined FORCE, not TORQUE. There is a difference you
know. I presume you know.
The only way you can get TORQUE on a shackle is to have
completely frozen shackle bolts in the bushings.
I'd also suggest that YOUR force model is completely backward.
The LONGER the shackle the LESS forward force is exerted on the
spring. Standard resolution of forces diagram.
L.W.(ßill) ------ III wrote:
> You really can't see the leverage exerted on the length of spring
> by a longer shackle? You will need to plug in the value at:
> http://www.trebuchet.com/hardware/load.html We know that for the shackle
> for the sake of argument the weight each shackle supports is about one
> eighth of the Jeep, and that the stock shackle is nearly straight down,
> in the short stock position, like a stilt, where nearly no energy is
> trying to straighten the spring out, but you put the longer shackle on
> it, it then tilts forward, that distance is the figure you may plug into
> your model, a force that wasn't there before, you may take a breaker bar
> and try to force it back underneath, but you'll soon learn that new
> force is now too great. I suggest taking one of your classes.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Roy J wrote:
>
>>Sure do, I teach this stuff at the undergrad level. That's why I
>>asked.
know. I presume you know.
The only way you can get TORQUE on a shackle is to have
completely frozen shackle bolts in the bushings.
I'd also suggest that YOUR force model is completely backward.
The LONGER the shackle the LESS forward force is exerted on the
spring. Standard resolution of forces diagram.
L.W.(ßill) ------ III wrote:
> You really can't see the leverage exerted on the length of spring
> by a longer shackle? You will need to plug in the value at:
> http://www.trebuchet.com/hardware/load.html We know that for the shackle
> for the sake of argument the weight each shackle supports is about one
> eighth of the Jeep, and that the stock shackle is nearly straight down,
> in the short stock position, like a stilt, where nearly no energy is
> trying to straighten the spring out, but you put the longer shackle on
> it, it then tilts forward, that distance is the figure you may plug into
> your model, a force that wasn't there before, you may take a breaker bar
> and try to force it back underneath, but you'll soon learn that new
> force is now too great. I suggest taking one of your classes.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Roy J wrote:
>
>>Sure do, I teach this stuff at the undergrad level. That's why I
>>asked.
05-05-2004, 10:19 PM
#93
Guest
Posts: n/a
Re: Shackles
But you just defined FORCE, not TORQUE. There is a difference you
know. I presume you know.
The only way you can get TORQUE on a shackle is to have
completely frozen shackle bolts in the bushings.
I'd also suggest that YOUR force model is completely backward.
The LONGER the shackle the LESS forward force is exerted on the
spring. Standard resolution of forces diagram.
L.W.(ßill) ------ III wrote:
> You really can't see the leverage exerted on the length of spring
> by a longer shackle? You will need to plug in the value at:
> http://www.trebuchet.com/hardware/load.html We know that for the shackle
> for the sake of argument the weight each shackle supports is about one
> eighth of the Jeep, and that the stock shackle is nearly straight down,
> in the short stock position, like a stilt, where nearly no energy is
> trying to straighten the spring out, but you put the longer shackle on
> it, it then tilts forward, that distance is the figure you may plug into
> your model, a force that wasn't there before, you may take a breaker bar
> and try to force it back underneath, but you'll soon learn that new
> force is now too great. I suggest taking one of your classes.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Roy J wrote:
>
>>Sure do, I teach this stuff at the undergrad level. That's why I
>>asked.
know. I presume you know.
The only way you can get TORQUE on a shackle is to have
completely frozen shackle bolts in the bushings.
I'd also suggest that YOUR force model is completely backward.
The LONGER the shackle the LESS forward force is exerted on the
spring. Standard resolution of forces diagram.
L.W.(ßill) ------ III wrote:
> You really can't see the leverage exerted on the length of spring
> by a longer shackle? You will need to plug in the value at:
> http://www.trebuchet.com/hardware/load.html We know that for the shackle
> for the sake of argument the weight each shackle supports is about one
> eighth of the Jeep, and that the stock shackle is nearly straight down,
> in the short stock position, like a stilt, where nearly no energy is
> trying to straighten the spring out, but you put the longer shackle on
> it, it then tilts forward, that distance is the figure you may plug into
> your model, a force that wasn't there before, you may take a breaker bar
> and try to force it back underneath, but you'll soon learn that new
> force is now too great. I suggest taking one of your classes.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Roy J wrote:
>
>>Sure do, I teach this stuff at the undergrad level. That's why I
>>asked.
05-05-2004, 10:28 PM
#94
Guest
Posts: n/a
Re: Shackles
Loosen your shackles, you have locked the rubber inserts while your
frame was jack up. They will tear if you don't. Think about some air
shocks if you don't want to arc the springs more than stock:
http://www.jcwhitney.com/webapp/wcs/...&storeId=10101
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Jeepster wrote:
>
> I took the shackles off and put the original shackles back on, the
> funny thing is the front end sits 1" higher than it did before.
> ( I measured 19" to the bottom of the bumper before I started and now
> it is 20")
frame was jack up. They will tear if you don't. Think about some air
shocks if you don't want to arc the springs more than stock:
http://www.jcwhitney.com/webapp/wcs/...&storeId=10101
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Jeepster wrote:
>
> I took the shackles off and put the original shackles back on, the
> funny thing is the front end sits 1" higher than it did before.
> ( I measured 19" to the bottom of the bumper before I started and now
> it is 20")
05-05-2004, 10:28 PM
#95
Guest
Posts: n/a
Re: Shackles
Loosen your shackles, you have locked the rubber inserts while your
frame was jack up. They will tear if you don't. Think about some air
shocks if you don't want to arc the springs more than stock:
http://www.jcwhitney.com/webapp/wcs/...&storeId=10101
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Jeepster wrote:
>
> I took the shackles off and put the original shackles back on, the
> funny thing is the front end sits 1" higher than it did before.
> ( I measured 19" to the bottom of the bumper before I started and now
> it is 20")
frame was jack up. They will tear if you don't. Think about some air
shocks if you don't want to arc the springs more than stock:
http://www.jcwhitney.com/webapp/wcs/...&storeId=10101
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Jeepster wrote:
>
> I took the shackles off and put the original shackles back on, the
> funny thing is the front end sits 1" higher than it did before.
> ( I measured 19" to the bottom of the bumper before I started and now
> it is 20")
05-05-2004, 10:28 PM
#96
Guest
Posts: n/a
Re: Shackles
Loosen your shackles, you have locked the rubber inserts while your
frame was jack up. They will tear if you don't. Think about some air
shocks if you don't want to arc the springs more than stock:
http://www.jcwhitney.com/webapp/wcs/...&storeId=10101
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Jeepster wrote:
>
> I took the shackles off and put the original shackles back on, the
> funny thing is the front end sits 1" higher than it did before.
> ( I measured 19" to the bottom of the bumper before I started and now
> it is 20")
frame was jack up. They will tear if you don't. Think about some air
shocks if you don't want to arc the springs more than stock:
http://www.jcwhitney.com/webapp/wcs/...&storeId=10101
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Jeepster wrote:
>
> I took the shackles off and put the original shackles back on, the
> funny thing is the front end sits 1" higher than it did before.
> ( I measured 19" to the bottom of the bumper before I started and now
> it is 20")
05-05-2004, 10:28 PM
#97
Guest
Posts: n/a
Re: Shackles
Loosen your shackles, you have locked the rubber inserts while your
frame was jack up. They will tear if you don't. Think about some air
shocks if you don't want to arc the springs more than stock:
http://www.jcwhitney.com/webapp/wcs/...&storeId=10101
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Jeepster wrote:
>
> I took the shackles off and put the original shackles back on, the
> funny thing is the front end sits 1" higher than it did before.
> ( I measured 19" to the bottom of the bumper before I started and now
> it is 20")
frame was jack up. They will tear if you don't. Think about some air
shocks if you don't want to arc the springs more than stock:
http://www.jcwhitney.com/webapp/wcs/...&storeId=10101
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Jeepster wrote:
>
> I took the shackles off and put the original shackles back on, the
> funny thing is the front end sits 1" higher than it did before.
> ( I measured 19" to the bottom of the bumper before I started and now
> it is 20")
05-05-2004, 10:46 PM
#98
Guest
Posts: n/a
Re: Shackles
Thanks...I should have thought of that myself.
On Wed, 05 May 2004 19:28:05 -0700, L.W.(ßill) ------ III
<----------@***.net> wrote:
> Loosen your shackles, you have locked the rubber inserts while your
>frame was jack up. They will tear if you don't. Think about some air
>shocks if you don't want to arc the springs more than stock:
>http://www.jcwhitney.com/webapp/wcs/...&storeId=10101
> God Bless America, ßill O|||||||O
>mailto:-------------------- http://www.----------.com/
>
>Jeepster wrote:
>>
>> I took the shackles off and put the original shackles back on, the
>> funny thing is the front end sits 1" higher than it did before.
>> ( I measured 19" to the bottom of the bumper before I started and now
>> it is 20")
On Wed, 05 May 2004 19:28:05 -0700, L.W.(ßill) ------ III
<----------@***.net> wrote:
> Loosen your shackles, you have locked the rubber inserts while your
>frame was jack up. They will tear if you don't. Think about some air
>shocks if you don't want to arc the springs more than stock:
>http://www.jcwhitney.com/webapp/wcs/...&storeId=10101
> God Bless America, ßill O|||||||O
>mailto:-------------------- http://www.----------.com/
>
>Jeepster wrote:
>>
>> I took the shackles off and put the original shackles back on, the
>> funny thing is the front end sits 1" higher than it did before.
>> ( I measured 19" to the bottom of the bumper before I started and now
>> it is 20")
05-05-2004, 10:46 PM
#99
Guest
Posts: n/a
Re: Shackles
Thanks...I should have thought of that myself.
On Wed, 05 May 2004 19:28:05 -0700, L.W.(ßill) ------ III
<----------@***.net> wrote:
> Loosen your shackles, you have locked the rubber inserts while your
>frame was jack up. They will tear if you don't. Think about some air
>shocks if you don't want to arc the springs more than stock:
>http://www.jcwhitney.com/webapp/wcs/...&storeId=10101
> God Bless America, ßill O|||||||O
>mailto:-------------------- http://www.----------.com/
>
>Jeepster wrote:
>>
>> I took the shackles off and put the original shackles back on, the
>> funny thing is the front end sits 1" higher than it did before.
>> ( I measured 19" to the bottom of the bumper before I started and now
>> it is 20")
On Wed, 05 May 2004 19:28:05 -0700, L.W.(ßill) ------ III
<----------@***.net> wrote:
> Loosen your shackles, you have locked the rubber inserts while your
>frame was jack up. They will tear if you don't. Think about some air
>shocks if you don't want to arc the springs more than stock:
>http://www.jcwhitney.com/webapp/wcs/...&storeId=10101
> God Bless America, ßill O|||||||O
>mailto:-------------------- http://www.----------.com/
>
>Jeepster wrote:
>>
>> I took the shackles off and put the original shackles back on, the
>> funny thing is the front end sits 1" higher than it did before.
>> ( I measured 19" to the bottom of the bumper before I started and now
>> it is 20")
05-05-2004, 10:46 PM
#100
Guest
Posts: n/a
Re: Shackles
Thanks...I should have thought of that myself.
On Wed, 05 May 2004 19:28:05 -0700, L.W.(ßill) ------ III
<----------@***.net> wrote:
> Loosen your shackles, you have locked the rubber inserts while your
>frame was jack up. They will tear if you don't. Think about some air
>shocks if you don't want to arc the springs more than stock:
>http://www.jcwhitney.com/webapp/wcs/...&storeId=10101
> God Bless America, ßill O|||||||O
>mailto:-------------------- http://www.----------.com/
>
>Jeepster wrote:
>>
>> I took the shackles off and put the original shackles back on, the
>> funny thing is the front end sits 1" higher than it did before.
>> ( I measured 19" to the bottom of the bumper before I started and now
>> it is 20")
On Wed, 05 May 2004 19:28:05 -0700, L.W.(ßill) ------ III
<----------@***.net> wrote:
> Loosen your shackles, you have locked the rubber inserts while your
>frame was jack up. They will tear if you don't. Think about some air
>shocks if you don't want to arc the springs more than stock:
>http://www.jcwhitney.com/webapp/wcs/...&storeId=10101
> God Bless America, ßill O|||||||O
>mailto:-------------------- http://www.----------.com/
>
>Jeepster wrote:
>>
>> I took the shackles off and put the original shackles back on, the
>> funny thing is the front end sits 1" higher than it did before.
>> ( I measured 19" to the bottom of the bumper before I started and now
>> it is 20")