Re: Help with strange scraping sound
 

Just an update. Replaced the driver's side motor mount last weekend
and while down there noticed that a bearing cap had fallen off the
front driveshaft u-joint at the transfer case so ended up replacing the
joint too. I'm hoping this will take care of the noise. I'll be going
off road this weekend for testing!

Thanks again.


nrs wrote:
> Thanks again to everybody for the help.
>
>
> Mike Romain wrote:
> > Some days the ol' crystal ball works eh...
> >
> > Not a hard fix anyway.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> > Canadian Off Road Trips Photos: Non members can still view!
> > Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> > (More Off Road album links at bottom of the view page)
> >
> >
> > nrs wrote:
> > >
> > > You all must be psychic! The driver's side mount looks bad. The
> > > rubber that goes over the top of the center bolt is mostly gone. I
> > > recently put in a torque reaction bolt in the transmission mount that
> > > had been broken before I bought the jeep. Looks like this mount had
> > > been taking on that role and wore out.
> > >
> > > Thanks to all who replied.
> > >
> > > L.W.(Bill) ------ III wrote:
> > > > Not really a problem like with the pre seventies cars would fail:
> > > > http://users.adelphia.net/~csudman/4...nt%20Broke.jpg and the
> > > > reason drag strips require engine straps. The Jeep is held within a
> > > > ring, so it may only fall enough to start to hit on exhaust/driveshaft:
> > > > http://members.cox.net/douglas.wilson/motormount/
> > > > God Bless America, Bill O|||||||O
> > > > mailto:-------------------- http://www.----------.com/
> > > >
> > > > billy ray wrote:
> > > > >
> > > > > If that is the problem consider chaining the replacement.

Re: Help with strange scraping sound
 

nrs wrote:
> Just an update. Replaced the driver's side motor mount last weekend
> and while down there noticed that a bearing cap had fallen off the
> front driveshaft u-joint at the transfer case so ended up replacing
> the joint too. I'm hoping this will take care of the noise. I'll be
> going off road this weekend for testing!

You should replace all mounts (usually 2 on the motor and one on the
transmission) because just replacing one puts the motor at an odd
angle.

Missing bearing cap will most definitely make a noise. Glad you caught
it before the joint grenaded.

--
DougW

Re: Help with strange scraping sound
 

nrs wrote:
> Just an update. Replaced the driver's side motor mount last weekend
> and while down there noticed that a bearing cap had fallen off the
> front driveshaft u-joint at the transfer case so ended up replacing
> the joint too. I'm hoping this will take care of the noise. I'll be
> going off road this weekend for testing!

You should replace all mounts (usually 2 on the motor and one on the
transmission) because just replacing one puts the motor at an odd
angle.

Missing bearing cap will most definitely make a noise. Glad you caught
it before the joint grenaded.

--
DougW

Re: Help with strange scraping sound
 

nrs wrote:
> Just an update. Replaced the driver's side motor mount last weekend
> and while down there noticed that a bearing cap had fallen off the
> front driveshaft u-joint at the transfer case so ended up replacing
> the joint too. I'm hoping this will take care of the noise. I'll be
> going off road this weekend for testing!

You should replace all mounts (usually 2 on the motor and one on the
transmission) because just replacing one puts the motor at an odd
angle.

Missing bearing cap will most definitely make a noise. Glad you caught
it before the joint grenaded.

--
DougW

Re: Help with strange scraping sound
 

Thanks.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

nrs wrote:
>
> Just an update. Replaced the driver's side motor mount last weekend
> and while down there noticed that a bearing cap had fallen off the
> front driveshaft u-joint at the transfer case so ended up replacing the
> joint too. I'm hoping this will take care of the noise. I'll be going
> off road this weekend for testing!
>
> Thanks again.

Re: Help with strange scraping sound
 

Thanks.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

nrs wrote:
>
> Just an update. Replaced the driver's side motor mount last weekend
> and while down there noticed that a bearing cap had fallen off the
> front driveshaft u-joint at the transfer case so ended up replacing the
> joint too. I'm hoping this will take care of the noise. I'll be going
> off road this weekend for testing!
>
> Thanks again.

Re: Help with strange scraping sound
 

Thanks.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

nrs wrote:
>
> Just an update. Replaced the driver's side motor mount last weekend
> and while down there noticed that a bearing cap had fallen off the
> front driveshaft u-joint at the transfer case so ended up replacing the
> joint too. I'm hoping this will take care of the noise. I'll be going
> off road this weekend for testing!
>
> Thanks again.

Re: Help with strange scraping sound
 

Happy New Year to everyone!


Well, the noise still hasn´t gone away (seems it wasn't the engine
mount nor the u-joint). It sounds like a slow metalic scraping
seeming to come from around the bellhousing area. It happens only when
using engine compresion to control speed when going downhill. I've
hear it now in 1st, 2nd, and 3rd gears at various times and speeds. I
can make the sound stop by giving is a bit of gas or by pushing in the
clutch pedal. The strange thing is that it does not seem to affect
anything else, Jeep shifts ok, clutch operates smoothly, etc. Any more
ideas? Any tests I can do?

Thanks

Re: Help with strange scraping sound
 

Happy New Year to everyone!


Well, the noise still hasn´t gone away (seems it wasn't the engine
mount nor the u-joint). It sounds like a slow metalic scraping
seeming to come from around the bellhousing area. It happens only when
using engine compresion to control speed when going downhill. I've
hear it now in 1st, 2nd, and 3rd gears at various times and speeds. I
can make the sound stop by giving is a bit of gas or by pushing in the
clutch pedal. The strange thing is that it does not seem to affect
anything else, Jeep shifts ok, clutch operates smoothly, etc. Any more
ideas? Any tests I can do?

Thanks

Re: Help with strange scraping sound
 

Happy New Year to everyone!


Well, the noise still hasn´t gone away (seems it wasn't the engine
mount nor the u-joint). It sounds like a slow metalic scraping
seeming to come from around the bellhousing area. It happens only when
using engine compresion to control speed when going downhill. I've
hear it now in 1st, 2nd, and 3rd gears at various times and speeds. I
can make the sound stop by giving is a bit of gas or by pushing in the
clutch pedal. The strange thing is that it does not seem to affect
anything else, Jeep shifts ok, clutch operates smoothly, etc. Any more
ideas? Any tests I can do?

Thanks