04 JGC Quadr-Trac II question
 

My jeep has the QTII transfer case, which as most of you already know, means
it applies power to front/rear as needed based on wheel slip.
My question is this:
What is the time it takes to engage the front wheels once the rears start
slipping? Is it instantaneous, or does it take a bit?
Also, how long does the front axle stay engaged once power has been
transferred to the front?

Re: 04 JGC Quadr-Trac II question
 

It applies the brake to the spinning wheel to force that power to
the wheels with traction, much like any farmer has used his
hand/emergency brake to become unstuck, since the Model T:
http://www.imajeep.com/2001%20Grand/...ive_system.htm
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Danny Boy wrote:
>
> My jeep has the QTII transfer case, which as most of you already know, means
> it applies power to front/rear as needed based on wheel slip.
> My question is this:
> What is the time it takes to engage the front wheels once the rears start
> slipping? Is it instantaneous, or does it take a bit?
> Also, how long does the front axle stay engaged once power has been
> transferred to the front?

Re: 04 JGC Quadr-Trac II question
 

It applies the brake to the spinning wheel to force that power to
the wheels with traction, much like any farmer has used his
hand/emergency brake to become unstuck, since the Model T:
http://www.imajeep.com/2001%20Grand/...ive_system.htm
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Danny Boy wrote:
>
> My jeep has the QTII transfer case, which as most of you already know, means
> it applies power to front/rear as needed based on wheel slip.
> My question is this:
> What is the time it takes to engage the front wheels once the rears start
> slipping? Is it instantaneous, or does it take a bit?
> Also, how long does the front axle stay engaged once power has been
> transferred to the front?

Re: 04 JGC Quadr-Trac II question
 

It applies the brake to the spinning wheel to force that power to
the wheels with traction, much like any farmer has used his
hand/emergency brake to become unstuck, since the Model T:
http://www.imajeep.com/2001%20Grand/...ive_system.htm
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Danny Boy wrote:
>
> My jeep has the QTII transfer case, which as most of you already know, means
> it applies power to front/rear as needed based on wheel slip.
> My question is this:
> What is the time it takes to engage the front wheels once the rears start
> slipping? Is it instantaneous, or does it take a bit?
> Also, how long does the front axle stay engaged once power has been
> transferred to the front?

Re: 04 JGC Quadr-Trac II question
 

Look at http://www.a1.nl/phomepag/markerink/quadrive.htm

"The responsible drive-train developer Harry T. Page quotes a response time
of 0.5s before maximum pressure is generated. Chrysler has named this
drive-split system Quadra-Trac II"

However when in a really tight turn:

"But the problem is not this 0.5s, the problem is that single second of
fear, in which one does not know how the Grand will finally react. At first
one drives a VW bug, a rear-skidder, and the next moment a true 4x4 vehicle.
Which of the two must one be prepared for?


Larry Greenwood

"Danny Boy" <nomail@4me.com> wrote in message news:3ffc2c14@news.gvsu.edu...
> My jeep has the QTII transfer case, which as most of you already know,
means
> it applies power to front/rear as needed based on wheel slip.
> My question is this:
> What is the time it takes to engage the front wheels once the rears start
> slipping? Is it instantaneous, or does it take a bit?
> Also, how long does the front axle stay engaged once power has been
> transferred to the front?
>
>

Re: 04 JGC Quadr-Trac II question
 

Look at http://www.a1.nl/phomepag/markerink/quadrive.htm

"The responsible drive-train developer Harry T. Page quotes a response time
of 0.5s before maximum pressure is generated. Chrysler has named this
drive-split system Quadra-Trac II"

However when in a really tight turn:

"But the problem is not this 0.5s, the problem is that single second of
fear, in which one does not know how the Grand will finally react. At first
one drives a VW bug, a rear-skidder, and the next moment a true 4x4 vehicle.
Which of the two must one be prepared for?


Larry Greenwood

"Danny Boy" <nomail@4me.com> wrote in message news:3ffc2c14@news.gvsu.edu...
> My jeep has the QTII transfer case, which as most of you already know,
means
> it applies power to front/rear as needed based on wheel slip.
> My question is this:
> What is the time it takes to engage the front wheels once the rears start
> slipping? Is it instantaneous, or does it take a bit?
> Also, how long does the front axle stay engaged once power has been
> transferred to the front?
>
>

Re: 04 JGC Quadr-Trac II question
 

Look at http://www.a1.nl/phomepag/markerink/quadrive.htm

"The responsible drive-train developer Harry T. Page quotes a response time
of 0.5s before maximum pressure is generated. Chrysler has named this
drive-split system Quadra-Trac II"

However when in a really tight turn:

"But the problem is not this 0.5s, the problem is that single second of
fear, in which one does not know how the Grand will finally react. At first
one drives a VW bug, a rear-skidder, and the next moment a true 4x4 vehicle.
Which of the two must one be prepared for?


Larry Greenwood

"Danny Boy" <nomail@4me.com> wrote in message news:3ffc2c14@news.gvsu.edu...
> My jeep has the QTII transfer case, which as most of you already know,
means
> it applies power to front/rear as needed based on wheel slip.
> My question is this:
> What is the time it takes to engage the front wheels once the rears start
> slipping? Is it instantaneous, or does it take a bit?
> Also, how long does the front axle stay engaged once power has been
> transferred to the front?
>
>

Re: 04 JGC Quadr-Trac II question
 

Applies the brake? As in actually compresses the brake pad against the
rotor on the wheel that is slipping? This doesn't sound right. If that
were the case, that would mean the computer would have to control the 4x4
somehow, and based on the link you provided, it mentions the system is
mechanical, not electrical. (of course the link discusses the QuadraDrive
system, not the QTII system. but from what I understand the only difference
is the addition of a vari-lock diff in the axles.)

Seems strange if a wheel starts spinning in the mud, the brake would be
applied to transfer power. Sounds similar to driving down the road while
depressing the brake pedal at the same time. ??

Can anyone else confirm or deny the explanation by Bill?

"L.W. (ßill) ------ III" <----------@cox.net> wrote in message
news:3FFC6845.4CEE74D7@cox.net...
> It applies the brake to the spinning wheel to force that power to
> the wheels with traction, much like any farmer has used his
> hand/emergency brake to become unstuck, since the Model T:
>
http://www.imajeep.com/2001%20Grand/...ive_system.htm
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Danny Boy wrote:
> >
> > My jeep has the QTII transfer case, which as most of you already know,
means
> > it applies power to front/rear as needed based on wheel slip.
> > My question is this:
> > What is the time it takes to engage the front wheels once the rears
start
> > slipping? Is it instantaneous, or does it take a bit?
> > Also, how long does the front axle stay engaged once power has been
> > transferred to the front?

Re: 04 JGC Quadr-Trac II question
 

Applies the brake? As in actually compresses the brake pad against the
rotor on the wheel that is slipping? This doesn't sound right. If that
were the case, that would mean the computer would have to control the 4x4
somehow, and based on the link you provided, it mentions the system is
mechanical, not electrical. (of course the link discusses the QuadraDrive
system, not the QTII system. but from what I understand the only difference
is the addition of a vari-lock diff in the axles.)

Seems strange if a wheel starts spinning in the mud, the brake would be
applied to transfer power. Sounds similar to driving down the road while
depressing the brake pedal at the same time. ??

Can anyone else confirm or deny the explanation by Bill?

"L.W. (ßill) ------ III" <----------@cox.net> wrote in message
news:3FFC6845.4CEE74D7@cox.net...
> It applies the brake to the spinning wheel to force that power to
> the wheels with traction, much like any farmer has used his
> hand/emergency brake to become unstuck, since the Model T:
>
http://www.imajeep.com/2001%20Grand/...ive_system.htm
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Danny Boy wrote:
> >
> > My jeep has the QTII transfer case, which as most of you already know,
means
> > it applies power to front/rear as needed based on wheel slip.
> > My question is this:
> > What is the time it takes to engage the front wheels once the rears
start
> > slipping? Is it instantaneous, or does it take a bit?
> > Also, how long does the front axle stay engaged once power has been
> > transferred to the front?

Re: 04 JGC Quadr-Trac II question
 

Applies the brake? As in actually compresses the brake pad against the
rotor on the wheel that is slipping? This doesn't sound right. If that
were the case, that would mean the computer would have to control the 4x4
somehow, and based on the link you provided, it mentions the system is
mechanical, not electrical. (of course the link discusses the QuadraDrive
system, not the QTII system. but from what I understand the only difference
is the addition of a vari-lock diff in the axles.)

Seems strange if a wheel starts spinning in the mud, the brake would be
applied to transfer power. Sounds similar to driving down the road while
depressing the brake pedal at the same time. ??

Can anyone else confirm or deny the explanation by Bill?

"L.W. (ßill) ------ III" <----------@cox.net> wrote in message
news:3FFC6845.4CEE74D7@cox.net...
> It applies the brake to the spinning wheel to force that power to
> the wheels with traction, much like any farmer has used his
> hand/emergency brake to become unstuck, since the Model T:
>
http://www.imajeep.com/2001%20Grand/...ive_system.htm
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Danny Boy wrote:
> >
> > My jeep has the QTII transfer case, which as most of you already know,
means
> > it applies power to front/rear as needed based on wheel slip.
> > My question is this:
> > What is the time it takes to engage the front wheels once the rears
start
> > slipping? Is it instantaneous, or does it take a bit?
> > Also, how long does the front axle stay engaged once power has been
> > transferred to the front?