Melissa
10-09-2009, 03:28 PM
This is my first write up, plus my first time cleaning a NSS, but here goes anyways.
Tools needed are a 12mm socket, flat head screw driver, electrical cleaner, dielectric grease, and very fine sand paper ( I used 200 grit )
Locate your NSS, on my 93 it was on the left side of my tranny at the front.
This is the mess that greeted me when i located it
http://i730.photobucket.com/albums/ww305/melreese83/Jeep/HPIM0897.jpg
First thing I did was to unplug the sensor from in the engine compartment and clip the two zip ties holding the NSS wires to other wires, I found the plug on the left, at the back of my valve cover, by the dip stick tube.
http://i730.photobucket.com/albums/ww305/melreese83/Jeep/HPIM0906.jpg
Next I crawled under and attacked the NSS
I used the 12mm socket to remove the top bolt, then I bent back the tabs on the lock washer behind the lower big nut. I found that the big nut was only finger tight, but this is how it should be (I was told). after I removed the big nut and lock washer, I found there to be a rubber gasket under the lock washer, don't lose this gasket, it's hard to see when everything is dirty, but it's there. After I had a this part done, I replaced the large nut a couple turns back on and used my flat head screw driver as leverage on the big nut to help pull the NSS off straight, do not twist off the NSS as it can damage it.
Once off, I had one very dirty NSS to deal with :eek:
In this picture, there is the NSS, the top bolt, big nut, lock washer, and rubber gasket.
http://i730.photobucket.com/albums/ww305/melreese83/Jeep/HPIM0901.jpg
Now the fun part :headshake:
Remove the six screws holding the part together, but be careful when you seperate the part, as the arm inside does have two spring loaded brass contacts that might want to take a leap for freedom, and they would be almost impossible to find again. After open here are some pics of the inside goodies.
http://i730.photobucket.com/albums/ww305/melreese83/Jeep/pict6251.jpg
http://i730.photobucket.com/albums/ww305/melreese83/Jeep/pict6252.jpg
http://i730.photobucket.com/albums/ww305/melreese83/Jeep/pict6253.jpg
http://i730.photobucket.com/albums/ww305/melreese83/Jeep/pict6255.jpg
http://i730.photobucket.com/albums/ww305/melreese83/Jeep/pict6256.jpg
After tearing apart the inside I soaked all the pieces in electrical cleaner and then let them dry completely. I then used the 220 sand paper and sanded all the contacts, including the two brass ones from the arm.
Before
http://i730.photobucket.com/albums/ww305/melreese83/Jeep/pict6261.jpg
After
http://i730.photobucket.com/albums/ww305/melreese83/Jeep/pict6269.jpg
Oh...so pretty now :cheerleader:
So now that everything is all clean and pretty, I used the dielectric grease and gave everything a good smear with it.
http://i730.photobucket.com/albums/ww305/melreese83/Jeep/HPIM0903.jpg
Now, put all the pieces back in, put the two halves back on, and replace the six screws.
http://i730.photobucket.com/albums/ww305/melreese83/Jeep/HPIM0904.jpg
All thats left is to reinstall the NSS back on your rig the way you took it off and pug her back in.
http://i730.photobucket.com/albums/ww305/melreese83/Jeep/pict6275.jpg
http://i730.photobucket.com/albums/ww305/melreese83/Jeep/pict6276.jpg
Make sure your reverse lights are working, and that your jeep will only start in park or neutral, and wa la..................your good to go :driving::driving:
Tools needed are a 12mm socket, flat head screw driver, electrical cleaner, dielectric grease, and very fine sand paper ( I used 200 grit )
Locate your NSS, on my 93 it was on the left side of my tranny at the front.
This is the mess that greeted me when i located it
http://i730.photobucket.com/albums/ww305/melreese83/Jeep/HPIM0897.jpg
First thing I did was to unplug the sensor from in the engine compartment and clip the two zip ties holding the NSS wires to other wires, I found the plug on the left, at the back of my valve cover, by the dip stick tube.
http://i730.photobucket.com/albums/ww305/melreese83/Jeep/HPIM0906.jpg
Next I crawled under and attacked the NSS
I used the 12mm socket to remove the top bolt, then I bent back the tabs on the lock washer behind the lower big nut. I found that the big nut was only finger tight, but this is how it should be (I was told). after I removed the big nut and lock washer, I found there to be a rubber gasket under the lock washer, don't lose this gasket, it's hard to see when everything is dirty, but it's there. After I had a this part done, I replaced the large nut a couple turns back on and used my flat head screw driver as leverage on the big nut to help pull the NSS off straight, do not twist off the NSS as it can damage it.
Once off, I had one very dirty NSS to deal with :eek:
In this picture, there is the NSS, the top bolt, big nut, lock washer, and rubber gasket.
http://i730.photobucket.com/albums/ww305/melreese83/Jeep/HPIM0901.jpg
Now the fun part :headshake:
Remove the six screws holding the part together, but be careful when you seperate the part, as the arm inside does have two spring loaded brass contacts that might want to take a leap for freedom, and they would be almost impossible to find again. After open here are some pics of the inside goodies.
http://i730.photobucket.com/albums/ww305/melreese83/Jeep/pict6251.jpg
http://i730.photobucket.com/albums/ww305/melreese83/Jeep/pict6252.jpg
http://i730.photobucket.com/albums/ww305/melreese83/Jeep/pict6253.jpg
http://i730.photobucket.com/albums/ww305/melreese83/Jeep/pict6255.jpg
http://i730.photobucket.com/albums/ww305/melreese83/Jeep/pict6256.jpg
After tearing apart the inside I soaked all the pieces in electrical cleaner and then let them dry completely. I then used the 220 sand paper and sanded all the contacts, including the two brass ones from the arm.
Before
http://i730.photobucket.com/albums/ww305/melreese83/Jeep/pict6261.jpg
After
http://i730.photobucket.com/albums/ww305/melreese83/Jeep/pict6269.jpg
Oh...so pretty now :cheerleader:
So now that everything is all clean and pretty, I used the dielectric grease and gave everything a good smear with it.
http://i730.photobucket.com/albums/ww305/melreese83/Jeep/HPIM0903.jpg
Now, put all the pieces back in, put the two halves back on, and replace the six screws.
http://i730.photobucket.com/albums/ww305/melreese83/Jeep/HPIM0904.jpg
All thats left is to reinstall the NSS back on your rig the way you took it off and pug her back in.
http://i730.photobucket.com/albums/ww305/melreese83/Jeep/pict6275.jpg
http://i730.photobucket.com/albums/ww305/melreese83/Jeep/pict6276.jpg
Make sure your reverse lights are working, and that your jeep will only start in park or neutral, and wa la..................your good to go :driving::driving: