Menzenski
Formerly Mambeu
It seems like there have been a lot of questions recently about changing odometer mileage. I just swapped in a new cluster, and successfully changed the mileage on the new odo to match the old one, so I took it upon myself to do a writeup. This writeup is specifically for RENIX XJs/MJs, with a mechanical speedometer input, but I would guess that the procedures for a 91+ would be similar.
DISCLAIMER: This is intended as a guide for those who would like to change their odometers to reflect the actual mileage of their vehicles. Using the procedures outlined in this post for any other purpose may be illegal in your state/country. Check your local laws if in doubt.
You'll need a Phillips screwdriver, a pair of needlenose pliers, and two small flat-bladed screwdrivers, or two awls, or two thin nails, or similar implements (I used a handle-less screwdriver blade and a dental pick).
http://i18.photobucket.com/albums/b148/platinumkow/Odometer/269_6942.jpg
Start with the cluster out of the Jeep (I'm using my old cluster for this, since I didn't think to take photos when I did my new one).
http://i18.photobucket.com/albums/b148/platinumkow/Odometer/269_6920.jpg
Remove the four screws around the edge of the clear plastic cover. The clear plastic cover and the colored plastic surround simply lift off.
http://i18.photobucket.com/albums/b148/platinumkow/Odometer/269_6921.jpg
There are three screws that hold the odometer/speedometer assembly in place. Two in the back, one on each side of the speedo input shaft:
http://i18.photobucket.com/albums/b148/platinumkow/Odometer/269_6923.jpg
and one in the front, at the bottom right of the speedometer (next to the '07'):
http://i18.photobucket.com/albums/b148/platinumkow/Odometer/269_6924.jpg
Take out the three screws and jiggle the speedo shaft a bit, and the whole assembly will come right out.
http://i18.photobucket.com/albums/b148/platinumkow/Odometer/269_6925.jpg
Once you get it out, take a look at it. Try spinning the input shaft, and watch how slowly the gears turn. You can roll it forward (much, much more quickly than with a drill) by spinning the white 'tenths' wheel, but that's still really slow (I rolled mine forward almost one thousand miles that way before figuring out the easy way, and that took about two hours of spinning it nonstop, which, needless to say, was more than a little boring). This is what you'll find:
http://i18.photobucket.com/albums/b148/platinumkow/Odometer/269_6929.jpg
If your cluster has a trip odometer, it will look much the same. The trip odometer is easily removable (two screws), but it's not necessary to remove it.
Now comes the tricky part. Look at the photo linked to a few lines back (269_6929.jpg). Do you see the c-clip to the left of the number wheels? If not, it's circled in this picture:
http://i18.photobucket.com/albums/b148/platinumkow/Odometer/269_6929_2.jpg
If you can get the c-clip off, you can slide the number wheels over, off their little 'detents', and spin all the numbers freely. I got the clip off by holding one end still with the small flat screwdriver blade, and using the dental pick to push the other end off. Remember, these were designed to prevent people from tampering with them, so it may take you some time to get it off. When it does come off, there's a good chance that it will fly across the room, so aim towards something like a white bedsheet on the floor, so you can find it easily.
Once the c-clip is off, slide the end-wheel over. Apologies for the crappy photo.
http://i18.photobucket.com/albums/b148/platinumkow/Odometer/269_6937.jpg
To change the mileage, pull each wheel, one at a time, away from the wheel to its right (so to change the 'hundreds' wheel, slide it away from the 'tens' wheel, et c.) about an eighth of an inch or a little less, and it will rotate freely. Then slide it back, making sure that it is seated securely and lined up with the wheel you pulled it away from.
Once you've changed all the wheels, so the mileage matches your old odometer, use the needlenose pliers to replace the c-clip.
http://i18.photobucket.com/albums/b148/platinumkow/Odometer/269_6939.jpg
Then it's just a matter of replacing the seven screws that you took out, and you're done.
http://i18.photobucket.com/albums/b148/platinumkow/Odometer/269_6941.jpg
This is my first writeup, so comments are appreciated.
DISCLAIMER: This is intended as a guide for those who would like to change their odometers to reflect the actual mileage of their vehicles. Using the procedures outlined in this post for any other purpose may be illegal in your state/country. Check your local laws if in doubt.
You'll need a Phillips screwdriver, a pair of needlenose pliers, and two small flat-bladed screwdrivers, or two awls, or two thin nails, or similar implements (I used a handle-less screwdriver blade and a dental pick).
http://i18.photobucket.com/albums/b148/platinumkow/Odometer/269_6942.jpg
Start with the cluster out of the Jeep (I'm using my old cluster for this, since I didn't think to take photos when I did my new one).
http://i18.photobucket.com/albums/b148/platinumkow/Odometer/269_6920.jpg
Remove the four screws around the edge of the clear plastic cover. The clear plastic cover and the colored plastic surround simply lift off.
http://i18.photobucket.com/albums/b148/platinumkow/Odometer/269_6921.jpg
There are three screws that hold the odometer/speedometer assembly in place. Two in the back, one on each side of the speedo input shaft:
http://i18.photobucket.com/albums/b148/platinumkow/Odometer/269_6923.jpg
and one in the front, at the bottom right of the speedometer (next to the '07'):
http://i18.photobucket.com/albums/b148/platinumkow/Odometer/269_6924.jpg
Take out the three screws and jiggle the speedo shaft a bit, and the whole assembly will come right out.
http://i18.photobucket.com/albums/b148/platinumkow/Odometer/269_6925.jpg
Once you get it out, take a look at it. Try spinning the input shaft, and watch how slowly the gears turn. You can roll it forward (much, much more quickly than with a drill) by spinning the white 'tenths' wheel, but that's still really slow (I rolled mine forward almost one thousand miles that way before figuring out the easy way, and that took about two hours of spinning it nonstop, which, needless to say, was more than a little boring). This is what you'll find:
http://i18.photobucket.com/albums/b148/platinumkow/Odometer/269_6929.jpg
If your cluster has a trip odometer, it will look much the same. The trip odometer is easily removable (two screws), but it's not necessary to remove it.
Now comes the tricky part. Look at the photo linked to a few lines back (269_6929.jpg). Do you see the c-clip to the left of the number wheels? If not, it's circled in this picture:
http://i18.photobucket.com/albums/b148/platinumkow/Odometer/269_6929_2.jpg
If you can get the c-clip off, you can slide the number wheels over, off their little 'detents', and spin all the numbers freely. I got the clip off by holding one end still with the small flat screwdriver blade, and using the dental pick to push the other end off. Remember, these were designed to prevent people from tampering with them, so it may take you some time to get it off. When it does come off, there's a good chance that it will fly across the room, so aim towards something like a white bedsheet on the floor, so you can find it easily.
Once the c-clip is off, slide the end-wheel over. Apologies for the crappy photo.
http://i18.photobucket.com/albums/b148/platinumkow/Odometer/269_6937.jpg
To change the mileage, pull each wheel, one at a time, away from the wheel to its right (so to change the 'hundreds' wheel, slide it away from the 'tens' wheel, et c.) about an eighth of an inch or a little less, and it will rotate freely. Then slide it back, making sure that it is seated securely and lined up with the wheel you pulled it away from.
Once you've changed all the wheels, so the mileage matches your old odometer, use the needlenose pliers to replace the c-clip.
http://i18.photobucket.com/albums/b148/platinumkow/Odometer/269_6939.jpg
Then it's just a matter of replacing the seven screws that you took out, and you're done.
http://i18.photobucket.com/albums/b148/platinumkow/Odometer/269_6941.jpg
This is my first writeup, so comments are appreciated.