The T case does have a certain amount of play, and I think what you
described is within spec because that's about what I have and I don't have
any rattling issues.

Now, you said it only happens in 4lo. You might look at your Tcase shifter
linkage, you might not be getting it all the way into 4lo and your linkage
could be needing an adjustment. Barring that, it might be your planetary
gear assembly. Once I pulled my T case into 4lo and got a strange "rattle,"
it sounded like gears clashing, but the T case wasn't all the way in 4lo. At
any rate, I don't think it's your chain.

"Eric" <gymrat@baileyscorner.com> wrote in message
news:habXc.21895$Jn5.10587@fe1.texas.rr.com...
> So what the heck do I do? Is there a way to "fix" it???
>
> Eric
> "L.W. (ßill) ------ III" <----------@***.net> wrote in message
> news:412C4BC8.7A4D748F@***.net...
> > There's play, but it's not going to add to a quarter inch rotation:
> > http://7slotgrille.com/tech/sye2/newshaft.jpg You don't want it wrap up
> > on you: http://www.----------.com/BrokenTCase.jpg
> > God Bless America, ßill O|||||||O
> > mailto:--------------------
> >
> > Eric wrote:
> > >
> > > My 99 TJ has been making some interesting noises/vibrations lately.
Had
> it
> > > out on the trails this weekend, and when alternating the clutch/gas
> > > (climbing something, usually) I got a lot of... rattle... I guess you
> could
> > > call it. The guys from the shop that's been doing the work lately
said
> that
> > > didn't sound good. Eventually they agreed it sounded like "chain
slap"
> from
> > > the transfer case.
> > >
> > > They called another guy who knows these x-fer cases inside and out,
and
> he
> > > seemed to think it might just be natural "gear slap" and not a big
deal.
> > > UNLESS, he said, the front driveshaft can be rotated "more than just a
> > > little" while in gear. I jacked up the front, put it in gear (4Hi)
and
> > > found the front driveshaft rotates between 1/4" and 1/2". That's a
> guess as
> > > it's hard to determine distance during rotation...
> > >
> > > SO, if it is chain slap (and if so, it sounds pretty bad) what do I
do?
> Do
> > > I buy a new NP 231 or rebuild this one (adding a tera-low kit,
> obviously)?
> > > My TJ only has 48k miles on it. I can't believe this would happen so
> > > soon -- and the sound has been there for the past 20 thousand miles.
It
> > > ONLY happens in 4Lo and ONLY when I alternate clutch/gas/brake in
quick
> > > succession.
> > >
> > > Money is an issue... thanks guys.
> > >
> > > Eric
> > > 99 TJ SE
>
>

 

The T case does have a certain amount of play, and I think what you
described is within spec because that's about what I have and I don't have
any rattling issues.

Now, you said it only happens in 4lo. You might look at your Tcase shifter
linkage, you might not be getting it all the way into 4lo and your linkage
could be needing an adjustment. Barring that, it might be your planetary
gear assembly. Once I pulled my T case into 4lo and got a strange "rattle,"
it sounded like gears clashing, but the T case wasn't all the way in 4lo. At
any rate, I don't think it's your chain.

"Eric" <gymrat@baileyscorner.com> wrote in message
news:habXc.21895$Jn5.10587@fe1.texas.rr.com...
> So what the heck do I do? Is there a way to "fix" it???
>
> Eric
> "L.W. (ßill) ------ III" <----------@***.net> wrote in message
> news:412C4BC8.7A4D748F@***.net...
> > There's play, but it's not going to add to a quarter inch rotation:
> > http://7slotgrille.com/tech/sye2/newshaft.jpg You don't want it wrap up
> > on you: http://www.----------.com/BrokenTCase.jpg
> > God Bless America, ßill O|||||||O
> > mailto:--------------------
> >
> > Eric wrote:
> > >
> > > My 99 TJ has been making some interesting noises/vibrations lately.
Had
> it
> > > out on the trails this weekend, and when alternating the clutch/gas
> > > (climbing something, usually) I got a lot of... rattle... I guess you
> could
> > > call it. The guys from the shop that's been doing the work lately
said
> that
> > > didn't sound good. Eventually they agreed it sounded like "chain
slap"
> from
> > > the transfer case.
> > >
> > > They called another guy who knows these x-fer cases inside and out,
and
> he
> > > seemed to think it might just be natural "gear slap" and not a big
deal.
> > > UNLESS, he said, the front driveshaft can be rotated "more than just a
> > > little" while in gear. I jacked up the front, put it in gear (4Hi)
and
> > > found the front driveshaft rotates between 1/4" and 1/2". That's a
> guess as
> > > it's hard to determine distance during rotation...
> > >
> > > SO, if it is chain slap (and if so, it sounds pretty bad) what do I
do?
> Do
> > > I buy a new NP 231 or rebuild this one (adding a tera-low kit,
> obviously)?
> > > My TJ only has 48k miles on it. I can't believe this would happen so
> > > soon -- and the sound has been there for the past 20 thousand miles.
It
> > > ONLY happens in 4Lo and ONLY when I alternate clutch/gas/brake in
quick
> > > succession.
> > >
> > > Money is an issue... thanks guys.
> > >
> > > Eric
> > > 99 TJ SE
>
>

 

The T case does have a certain amount of play, and I think what you
described is within spec because that's about what I have and I don't have
any rattling issues.

Now, you said it only happens in 4lo. You might look at your Tcase shifter
linkage, you might not be getting it all the way into 4lo and your linkage
could be needing an adjustment. Barring that, it might be your planetary
gear assembly. Once I pulled my T case into 4lo and got a strange "rattle,"
it sounded like gears clashing, but the T case wasn't all the way in 4lo. At
any rate, I don't think it's your chain.

"Eric" <gymrat@baileyscorner.com> wrote in message
news:habXc.21895$Jn5.10587@fe1.texas.rr.com...
> So what the heck do I do? Is there a way to "fix" it???
>
> Eric
> "L.W. (ßill) ------ III" <----------@***.net> wrote in message
> news:412C4BC8.7A4D748F@***.net...
> > There's play, but it's not going to add to a quarter inch rotation:
> > http://7slotgrille.com/tech/sye2/newshaft.jpg You don't want it wrap up
> > on you: http://www.----------.com/BrokenTCase.jpg
> > God Bless America, ßill O|||||||O
> > mailto:--------------------
> >
> > Eric wrote:
> > >
> > > My 99 TJ has been making some interesting noises/vibrations lately.
Had
> it
> > > out on the trails this weekend, and when alternating the clutch/gas
> > > (climbing something, usually) I got a lot of... rattle... I guess you
> could
> > > call it. The guys from the shop that's been doing the work lately
said
> that
> > > didn't sound good. Eventually they agreed it sounded like "chain
slap"
> from
> > > the transfer case.
> > >
> > > They called another guy who knows these x-fer cases inside and out,
and
> he
> > > seemed to think it might just be natural "gear slap" and not a big
deal.
> > > UNLESS, he said, the front driveshaft can be rotated "more than just a
> > > little" while in gear. I jacked up the front, put it in gear (4Hi)
and
> > > found the front driveshaft rotates between 1/4" and 1/2". That's a
> guess as
> > > it's hard to determine distance during rotation...
> > >
> > > SO, if it is chain slap (and if so, it sounds pretty bad) what do I
do?
> Do
> > > I buy a new NP 231 or rebuild this one (adding a tera-low kit,
> obviously)?
> > > My TJ only has 48k miles on it. I can't believe this would happen so
> > > soon -- and the sound has been there for the past 20 thousand miles.
It
> > > ONLY happens in 4Lo and ONLY when I alternate clutch/gas/brake in
quick
> > > succession.
> > >
> > > Money is an issue... thanks guys.
> > >
> > > Eric
> > > 99 TJ SE
>
>

 

Only fix I know of is to change the chain.


On Thu, 26 Aug 2004 01:38:21 UTC "Eric" <gymrat@baileyscorner.com>
wrote:

> So what the heck do I do? Is there a way to "fix" it???
>
> Eric
> "L.W. (ßill) ------ III" <----------@***.net> wrote in message
> news:412C4BC8.7A4D748F@***.net...
> > There's play, but it's not going to add to a quarter inch rotation:
> > http://7slotgrille.com/tech/sye2/newshaft.jpg You don't want it wrap up
> > on you: http://www.----------.com/BrokenTCase.jpg
> > God Bless America, ßill O|||||||O
> > mailto:--------------------
> >
> > Eric wrote:
> > >
> > > My 99 TJ has been making some interesting noises/vibrations lately. Had
> it
> > > out on the trails this weekend, and when alternating the clutch/gas
> > > (climbing something, usually) I got a lot of... rattle... I guess you
> could
> > > call it. The guys from the shop that's been doing the work lately said
> that
> > > didn't sound good. Eventually they agreed it sounded like "chain slap"
> from
> > > the transfer case.
> > >
> > > They called another guy who knows these x-fer cases inside and out, and
> he
> > > seemed to think it might just be natural "gear slap" and not a big deal.
> > > UNLESS, he said, the front driveshaft can be rotated "more than just a
> > > little" while in gear. I jacked up the front, put it in gear (4Hi) and
> > > found the front driveshaft rotates between 1/4" and 1/2". That's a
> guess as
> > > it's hard to determine distance during rotation...
> > >
> > > SO, if it is chain slap (and if so, it sounds pretty bad) what do I do?
> Do
> > > I buy a new NP 231 or rebuild this one (adding a tera-low kit,
> obviously)?
> > > My TJ only has 48k miles on it. I can't believe this would happen so
> > > soon -- and the sound has been there for the past 20 thousand miles. It
> > > ONLY happens in 4Lo and ONLY when I alternate clutch/gas/brake in quick
> > > succession.
> > >
> > > Money is an issue... thanks guys.
> > >
> > > Eric
> > > 99 TJ SE
>
>


--
Will Honea

 

Only fix I know of is to change the chain.


On Thu, 26 Aug 2004 01:38:21 UTC "Eric" <gymrat@baileyscorner.com>
wrote:

> So what the heck do I do? Is there a way to "fix" it???
>
> Eric
> "L.W. (ßill) ------ III" <----------@***.net> wrote in message
> news:412C4BC8.7A4D748F@***.net...
> > There's play, but it's not going to add to a quarter inch rotation:
> > http://7slotgrille.com/tech/sye2/newshaft.jpg You don't want it wrap up
> > on you: http://www.----------.com/BrokenTCase.jpg
> > God Bless America, ßill O|||||||O
> > mailto:--------------------
> >
> > Eric wrote:
> > >
> > > My 99 TJ has been making some interesting noises/vibrations lately. Had
> it
> > > out on the trails this weekend, and when alternating the clutch/gas
> > > (climbing something, usually) I got a lot of... rattle... I guess you
> could
> > > call it. The guys from the shop that's been doing the work lately said
> that
> > > didn't sound good. Eventually they agreed it sounded like "chain slap"
> from
> > > the transfer case.
> > >
> > > They called another guy who knows these x-fer cases inside and out, and
> he
> > > seemed to think it might just be natural "gear slap" and not a big deal.
> > > UNLESS, he said, the front driveshaft can be rotated "more than just a
> > > little" while in gear. I jacked up the front, put it in gear (4Hi) and
> > > found the front driveshaft rotates between 1/4" and 1/2". That's a
> guess as
> > > it's hard to determine distance during rotation...
> > >
> > > SO, if it is chain slap (and if so, it sounds pretty bad) what do I do?
> Do
> > > I buy a new NP 231 or rebuild this one (adding a tera-low kit,
> obviously)?
> > > My TJ only has 48k miles on it. I can't believe this would happen so
> > > soon -- and the sound has been there for the past 20 thousand miles. It
> > > ONLY happens in 4Lo and ONLY when I alternate clutch/gas/brake in quick
> > > succession.
> > >
> > > Money is an issue... thanks guys.
> > >
> > > Eric
> > > 99 TJ SE
>
>


--
Will Honea

 

Only fix I know of is to change the chain.


On Thu, 26 Aug 2004 01:38:21 UTC "Eric" <gymrat@baileyscorner.com>
wrote:

> So what the heck do I do? Is there a way to "fix" it???
>
> Eric
> "L.W. (ßill) ------ III" <----------@***.net> wrote in message
> news:412C4BC8.7A4D748F@***.net...
> > There's play, but it's not going to add to a quarter inch rotation:
> > http://7slotgrille.com/tech/sye2/newshaft.jpg You don't want it wrap up
> > on you: http://www.----------.com/BrokenTCase.jpg
> > God Bless America, ßill O|||||||O
> > mailto:--------------------
> >
> > Eric wrote:
> > >
> > > My 99 TJ has been making some interesting noises/vibrations lately. Had
> it
> > > out on the trails this weekend, and when alternating the clutch/gas
> > > (climbing something, usually) I got a lot of... rattle... I guess you
> could
> > > call it. The guys from the shop that's been doing the work lately said
> that
> > > didn't sound good. Eventually they agreed it sounded like "chain slap"
> from
> > > the transfer case.
> > >
> > > They called another guy who knows these x-fer cases inside and out, and
> he
> > > seemed to think it might just be natural "gear slap" and not a big deal.
> > > UNLESS, he said, the front driveshaft can be rotated "more than just a
> > > little" while in gear. I jacked up the front, put it in gear (4Hi) and
> > > found the front driveshaft rotates between 1/4" and 1/2". That's a
> guess as
> > > it's hard to determine distance during rotation...
> > >
> > > SO, if it is chain slap (and if so, it sounds pretty bad) what do I do?
> Do
> > > I buy a new NP 231 or rebuild this one (adding a tera-low kit,
> obviously)?
> > > My TJ only has 48k miles on it. I can't believe this would happen so
> > > soon -- and the sound has been there for the past 20 thousand miles. It
> > > ONLY happens in 4Lo and ONLY when I alternate clutch/gas/brake in quick
> > > succession.
> > >
> > > Money is an issue... thanks guys.
> > >
> > > Eric
> > > 99 TJ SE
>
>


--
Will Honea

 

It's never leaked that I know of. I'm going to change the fluids here in a
couple of weeks anyway. I'll see if it's low.

Also, I have a new... vibration.. that's all I can describe it as. When I'm
going down the road and have a load on the engine (i.e. normal driving) the
whole TJ buzzes. When I press in the clutch it stops, so I know it isn't
tires.

I just had that SYE/driveshaft installed, as well as having my tailpipe cut
at the downward bend just behind the axle (it was hitting my shock). Any
thoughts on what could be causing this?

Thanks,
Eric
"L.W. (ßill) ------ III" <----------@***.net> wrote in message
news:412D5FD6.9C69DD24@***.net...
> Replace the chain, was it ever low on fluid? Front drive shaft seal
> leak?
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Eric wrote:
> >
> > So what the heck do I do? Is there a way to "fix" it???
> >
> > Eric

 

It's never leaked that I know of. I'm going to change the fluids here in a
couple of weeks anyway. I'll see if it's low.

Also, I have a new... vibration.. that's all I can describe it as. When I'm
going down the road and have a load on the engine (i.e. normal driving) the
whole TJ buzzes. When I press in the clutch it stops, so I know it isn't
tires.

I just had that SYE/driveshaft installed, as well as having my tailpipe cut
at the downward bend just behind the axle (it was hitting my shock). Any
thoughts on what could be causing this?

Thanks,
Eric
"L.W. (ßill) ------ III" <----------@***.net> wrote in message
news:412D5FD6.9C69DD24@***.net...
> Replace the chain, was it ever low on fluid? Front drive shaft seal
> leak?
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Eric wrote:
> >
> > So what the heck do I do? Is there a way to "fix" it???
> >
> > Eric

 

It's never leaked that I know of. I'm going to change the fluids here in a
couple of weeks anyway. I'll see if it's low.

Also, I have a new... vibration.. that's all I can describe it as. When I'm
going down the road and have a load on the engine (i.e. normal driving) the
whole TJ buzzes. When I press in the clutch it stops, so I know it isn't
tires.

I just had that SYE/driveshaft installed, as well as having my tailpipe cut
at the downward bend just behind the axle (it was hitting my shock). Any
thoughts on what could be causing this?

Thanks,
Eric
"L.W. (ßill) ------ III" <----------@***.net> wrote in message
news:412D5FD6.9C69DD24@***.net...
> Replace the chain, was it ever low on fluid? Front drive shaft seal
> leak?
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Eric wrote:
> >
> > So what the heck do I do? Is there a way to "fix" it???
> >
> > Eric

 

I doubt that it's the chain. I have seen these chains get sloppy, and they
make one hell of a racket banging against the case, and it isn't only in
4LO. The ones that I have seen fail were due to prolonged operation with no
lubricant, and the bad chain was just the symptom.

I am with the other dude that discussed your linkage and the possibility
that you aren't fully engaged in 4LO.



"Will Honea" <whonea@yahoo.com> wrote in message
news:JxX2tWiP5BNp-pn2-YEgt1JMEOUxK@anon.none.net...
> Only fix I know of is to change the chain.
>
>
> On Thu, 26 Aug 2004 01:38:21 UTC "Eric" <gymrat@baileyscorner.com>
> wrote:
>
> > So what the heck do I do? Is there a way to "fix" it???
> >
> > Eric
> > "L.W. (ßill) ------ III" <----------@***.net> wrote in message
> > news:412C4BC8.7A4D748F@***.net...
> > > There's play, but it's not going to add to a quarter inch
rotation:
> > > http://7slotgrille.com/tech/sye2/newshaft.jpg You don't want it wrap
up
> > > on you: http://www.----------.com/BrokenTCase.jpg
> > > God Bless America, ßill O|||||||O
> > > mailto:--------------------
> > >
> > > Eric wrote:
> > > >
> > > > My 99 TJ has been making some interesting noises/vibrations lately.
Had
> > it
> > > > out on the trails this weekend, and when alternating the clutch/gas
> > > > (climbing something, usually) I got a lot of... rattle... I guess
you
> > could
> > > > call it. The guys from the shop that's been doing the work lately
said
> > that
> > > > didn't sound good. Eventually they agreed it sounded like "chain
slap"
> > from
> > > > the transfer case.
> > > >
> > > > They called another guy who knows these x-fer cases inside and out,
and
> > he
> > > > seemed to think it might just be natural "gear slap" and not a big
deal.
> > > > UNLESS, he said, the front driveshaft can be rotated "more than just
a
> > > > little" while in gear. I jacked up the front, put it in gear (4Hi)
and
> > > > found the front driveshaft rotates between 1/4" and 1/2". That's a
> > guess as
> > > > it's hard to determine distance during rotation...
> > > >
> > > > SO, if it is chain slap (and if so, it sounds pretty bad) what do I
do?
> > Do
> > > > I buy a new NP 231 or rebuild this one (adding a tera-low kit,
> > obviously)?
> > > > My TJ only has 48k miles on it. I can't believe this would happen
so
> > > > soon -- and the sound has been there for the past 20 thousand miles.
It
> > > > ONLY happens in 4Lo and ONLY when I alternate clutch/gas/brake in
quick
> > > > succession.
> > > >
> > > > Money is an issue... thanks guys.
> > > >
> > > > Eric
> > > > 99 TJ SE
> >
> >
>
>
> --
> Will Honea