Re: highway speed in full time 4X4?
 

Hi Will:

My 200 lbs WILL NOT lock the rear wheels of my '02 TJ on dry pavement. They
will lock on snow/ice, but only after mashing my brake pedal as hard as I
can. My rear brakes are adjusted and working properly.

Tom

"Will Honea" <whonea@codenet.net> wrote in message
news:JxX2tWiP5BNp-pn2-uMPC7TFWxkZU@anon.none.net...
> When I put my 230 pounds on the brake pedal with due determination,
> they damned sure WILL lockup - but long after the front wheels are
> begging for mercy. All a matter of degree, but that is a
> proportioning valve, not a modulating valve and at some point even a
> portion of the force is sufficient to lock them. You just have to be
> REALLY determined to do it.
>
> On Wed, 7 Jan 2004 02:59:38 UTC "mabar" <mabar@NOSPAMgbronline.com>
> wrote:
>
> > Yes they do. Although not electronic ABS, the proportioning valve acts
as a
> > primitive rear antilock brake system. Plain and simple, the rear wheels
will
> > NOT lock up, no matter how hard you mash the brake pedal.
> >
> > Tom
> >
> > "Del Rawlins" <del@_kills_spammers_rawlinsbrothers.org> wrote in message
> > news:20040106122303346-0900@news.newsguy.com...
> > > On 06 Jan 2004 11:40 AM, Mike Romain posted the following:
> > >
> > > > Jeeps especially
> > > > have rear anti lock brakes, have since the 70's.
> > >
> > > Not.
> > >
> > > ----------------------------------------------------
> > > Del Rawlins- del@_kills_spammers_rawlinsbrothers.org
> > > Remove _kills_spammers_ to reply via email.
> > > Unofficial Bearhawk FAQ website:
> > > http://www.rawlinsbrothers.org/bhfaq/
> >
> >
>
>
> --
> Will Honea <whonea@codenet.net>

Re: highway speed in full time 4X4?
 

Hi Will:

My 200 lbs WILL NOT lock the rear wheels of my '02 TJ on dry pavement. They
will lock on snow/ice, but only after mashing my brake pedal as hard as I
can. My rear brakes are adjusted and working properly.

Tom

"Will Honea" <whonea@codenet.net> wrote in message
news:JxX2tWiP5BNp-pn2-uMPC7TFWxkZU@anon.none.net...
> When I put my 230 pounds on the brake pedal with due determination,
> they damned sure WILL lockup - but long after the front wheels are
> begging for mercy. All a matter of degree, but that is a
> proportioning valve, not a modulating valve and at some point even a
> portion of the force is sufficient to lock them. You just have to be
> REALLY determined to do it.
>
> On Wed, 7 Jan 2004 02:59:38 UTC "mabar" <mabar@NOSPAMgbronline.com>
> wrote:
>
> > Yes they do. Although not electronic ABS, the proportioning valve acts
as a
> > primitive rear antilock brake system. Plain and simple, the rear wheels
will
> > NOT lock up, no matter how hard you mash the brake pedal.
> >
> > Tom
> >
> > "Del Rawlins" <del@_kills_spammers_rawlinsbrothers.org> wrote in message
> > news:20040106122303346-0900@news.newsguy.com...
> > > On 06 Jan 2004 11:40 AM, Mike Romain posted the following:
> > >
> > > > Jeeps especially
> > > > have rear anti lock brakes, have since the 70's.
> > >
> > > Not.
> > >
> > > ----------------------------------------------------
> > > Del Rawlins- del@_kills_spammers_rawlinsbrothers.org
> > > Remove _kills_spammers_ to reply via email.
> > > Unofficial Bearhawk FAQ website:
> > > http://www.rawlinsbrothers.org/bhfaq/
> >
> >
>
>
> --
> Will Honea <whonea@codenet.net>

Re: highway speed in full time 4X4?
 

Hi Will:

My 200 lbs WILL NOT lock the rear wheels of my '02 TJ on dry pavement. They
will lock on snow/ice, but only after mashing my brake pedal as hard as I
can. My rear brakes are adjusted and working properly.

Tom

"Will Honea" <whonea@codenet.net> wrote in message
news:JxX2tWiP5BNp-pn2-uMPC7TFWxkZU@anon.none.net...
> When I put my 230 pounds on the brake pedal with due determination,
> they damned sure WILL lockup - but long after the front wheels are
> begging for mercy. All a matter of degree, but that is a
> proportioning valve, not a modulating valve and at some point even a
> portion of the force is sufficient to lock them. You just have to be
> REALLY determined to do it.
>
> On Wed, 7 Jan 2004 02:59:38 UTC "mabar" <mabar@NOSPAMgbronline.com>
> wrote:
>
> > Yes they do. Although not electronic ABS, the proportioning valve acts
as a
> > primitive rear antilock brake system. Plain and simple, the rear wheels
will
> > NOT lock up, no matter how hard you mash the brake pedal.
> >
> > Tom
> >
> > "Del Rawlins" <del@_kills_spammers_rawlinsbrothers.org> wrote in message
> > news:20040106122303346-0900@news.newsguy.com...
> > > On 06 Jan 2004 11:40 AM, Mike Romain posted the following:
> > >
> > > > Jeeps especially
> > > > have rear anti lock brakes, have since the 70's.
> > >
> > > Not.
> > >
> > > ----------------------------------------------------
> > > Del Rawlins- del@_kills_spammers_rawlinsbrothers.org
> > > Remove _kills_spammers_ to reply via email.
> > > Unofficial Bearhawk FAQ website:
> > > http://www.rawlinsbrothers.org/bhfaq/
> >
> >
>
>
> --
> Will Honea <whonea@codenet.net>

Re: highway speed in full time 4X4?
 

Mike Romain wrote:

> Locking the rear wheels at speed causes instant 360's. Try mashing
> the e-brake on while driving 50 mph across an empty parking lot or on
> a frozen lake.

What causes this? Please excuse my ignorance, but I've done this on
slick roads at speed on my motorcycle several times and never been spun
around. (My bike doesn't have ABS or linked f/r brakes.) The rear does
get 'sloppy' and move all over the place, but it doesn't cause a bike to
immediatly swap ends. Why is a Jeep so different?

And as a second question (not necessarily to you Mike)- if you are in
part-time 4wd how is it even possible to lock the rear without locking
the front and ever get into a situation like that in the first place?
Don't the front and back have to turn at the same speed?

Re: highway speed in full time 4X4?
 

Mike Romain wrote:

> Locking the rear wheels at speed causes instant 360's. Try mashing
> the e-brake on while driving 50 mph across an empty parking lot or on
> a frozen lake.

What causes this? Please excuse my ignorance, but I've done this on
slick roads at speed on my motorcycle several times and never been spun
around. (My bike doesn't have ABS or linked f/r brakes.) The rear does
get 'sloppy' and move all over the place, but it doesn't cause a bike to
immediatly swap ends. Why is a Jeep so different?

And as a second question (not necessarily to you Mike)- if you are in
part-time 4wd how is it even possible to lock the rear without locking
the front and ever get into a situation like that in the first place?
Don't the front and back have to turn at the same speed?

Re: highway speed in full time 4X4?
 

Mike Romain wrote:

> Locking the rear wheels at speed causes instant 360's. Try mashing
> the e-brake on while driving 50 mph across an empty parking lot or on
> a frozen lake.

What causes this? Please excuse my ignorance, but I've done this on
slick roads at speed on my motorcycle several times and never been spun
around. (My bike doesn't have ABS or linked f/r brakes.) The rear does
get 'sloppy' and move all over the place, but it doesn't cause a bike to
immediatly swap ends. Why is a Jeep so different?

And as a second question (not necessarily to you Mike)- if you are in
part-time 4wd how is it even possible to lock the rear without locking
the front and ever get into a situation like that in the first place?
Don't the front and back have to turn at the same speed?

Re: highway speed in full time 4X4?
 

Have a transmission lockup, and you'll swap ends right now, have an
engine seize and you'll be half away around before you can disengage the
clutch.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Tim Hayes wrote:
>
> What causes this? Please excuse my ignorance, but I've done this on
> slick roads at speed on my motorcycle several times and never been spun
> around. (My bike doesn't have ABS or linked f/r brakes.) The rear does
> get 'sloppy' and move all over the place, but it doesn't cause a bike to
> immediatly swap ends. Why is a Jeep so different?
>
> And as a second question (not necessarily to you Mike)- if you are in
> part-time 4wd how is it even possible to lock the rear without locking
> the front and ever get into a situation like that in the first place?
> Don't the front and back have to turn at the same speed?

Re: highway speed in full time 4X4?
 

Have a transmission lockup, and you'll swap ends right now, have an
engine seize and you'll be half away around before you can disengage the
clutch.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Tim Hayes wrote:
>
> What causes this? Please excuse my ignorance, but I've done this on
> slick roads at speed on my motorcycle several times and never been spun
> around. (My bike doesn't have ABS or linked f/r brakes.) The rear does
> get 'sloppy' and move all over the place, but it doesn't cause a bike to
> immediatly swap ends. Why is a Jeep so different?
>
> And as a second question (not necessarily to you Mike)- if you are in
> part-time 4wd how is it even possible to lock the rear without locking
> the front and ever get into a situation like that in the first place?
> Don't the front and back have to turn at the same speed?

Re: highway speed in full time 4X4?
 

Have a transmission lockup, and you'll swap ends right now, have an
engine seize and you'll be half away around before you can disengage the
clutch.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Tim Hayes wrote:
>
> What causes this? Please excuse my ignorance, but I've done this on
> slick roads at speed on my motorcycle several times and never been spun
> around. (My bike doesn't have ABS or linked f/r brakes.) The rear does
> get 'sloppy' and move all over the place, but it doesn't cause a bike to
> immediatly swap ends. Why is a Jeep so different?
>
> And as a second question (not necessarily to you Mike)- if you are in
> part-time 4wd how is it even possible to lock the rear without locking
> the front and ever get into a situation like that in the first place?
> Don't the front and back have to turn at the same speed?

Re: highway speed in full time 4X4?
 

Probably the same reason big rigs jack-knife when the trailer wheels
lock-up... sliding wheels, having lost their traction, travel faster than
the wheels that are braking with traction. And around she goes!

--
JimG
80' CJ-7 258 CID
35" BFG MT on 15x10 Centerlines
D44 Rear, Dana 30 Front. SOA
4.56 Gears, LockRight F&R
Dana 300 w/4:1 & Currie twin sticks
Warn X8000i w/ dual batteries

"Tim Hayes" <thayes@remove-me.rutgers.edu> wrote in message
news:3ffca2e9$1@rutgers.edu...
> Mike Romain wrote:
>
> > Locking the rear wheels at speed causes instant 360's. Try mashing
> > the e-brake on while driving 50 mph across an empty parking lot or on
> > a frozen lake.
>
> What causes this? Please excuse my ignorance, but I've done this on
> slick roads at speed on my motorcycle several times and never been spun
> around. (My bike doesn't have ABS or linked f/r brakes.) The rear does
> get 'sloppy' and move all over the place, but it doesn't cause a bike to
> immediatly swap ends. Why is a Jeep so different?
>
> And as a second question (not necessarily to you Mike)- if you are in
> part-time 4wd how is it even possible to lock the rear without locking
> the front and ever get into a situation like that in the first place?
> Don't the front and back have to turn at the same speed?
>
>