np241: How do you replace this? (see pic)

[nutt7]

You are looking at the shift selector. That is a nylon ring, and I believe an o-ring is behind it. I really don't want to open this thing up if I don't have to, but I have a leak from this point.

Thanks

 

[KDGRIN]

Take a sharp, pointed pic- or sharpen a nail to a point and work out the nylon ring. Then the o-ring next. Spray some degreaser around the shift shaft. Clean the nylon ring. Match up a new o-ring from the hardware supply. Put a little vasilene on the o-ring and install using a small screw driver to push it in evenly. Then install the nylon ring. Or if you messed up or lost the nylon ring, I have used two o-rings. Should go together easy. Good luck.

KDGRIN

 

[nutt7]

Take a sharp, pointed pic- or sharpen a nail to a point and work out the nylon ring. Then the o-ring next. Spray some degreaser around the shift shaft. Clean the nylon ring. Match up a new o-ring from the hardware supply. Put a little vasilene on the o-ring and install using a small screw driver to push it in evenly. Then install the nylon ring. Or if you messed up or lost the nylon ring, I have used two o-rings. Should go together easy. Good luck.

KDGRIN

Thank you! So you have done this exact thing before? I only ask because I am installing a new tranny and don't want my limiting factor of completion to be a nylon ring, and I think it would be ten times easier with the case on my garage floor. Thanks again

 

[KDGRIN]

If you have that 241 out, why don't you go get a gallon of Castrol Super Clean and a spray bottle. Take the CSC and put it in the spray bottle straight. If you have a pressure washer, then wash it off good. Make sure that you do this out in the street so the neighbors can look out the front window and ask " What the hail is he doin now"? If you don't have a pressure washer, well now is a good time to hook that garden hose up to the hot water heater to do a yearly drain and cleanout! Spray the CSC on the case and let set. Just don't do it while it is pooring down rain or you are defeating the purpose of letting it soak in. Also, make sure that you spray up wind other wise you might end up gasping for air.( Go ahead- ask me how I know). So after you let the CSC soak in for awhile, get that hot water sprayed on the t case. Use a spray nozzle to blast it good. You might have to do this a few times to get the case clean but it works really good! Oh, and make sure that you do all of this so its at the end of your property so all of the crap that you wash off will end up in front of your nosy neighbors house. You'll be the talk of the street!

KDGRIN

 

[KDGRIN]

I probably should add that this not only will make the t case look good under your Burb, it will also run cooler. And further if you paint the trans and t case with some good flat black paint it will help with the cooling even more. If you don't have a tranny cooler, this is a good time to put one on. Good luck.

 

[nutt7]

The case is actually pretty clean besides the area of the leak. I cleaned it when I resealed it. The tranny has a nice cooler and external filter already installed.

 

[nutt7]

Thanks for the help. I was able to get the them out without much trouble (the nylon ring is still in one piece). Lucky for me I already had the correct sized o-ring in my collection!

 

[Snoozer]

How did you end up getting this replaced? What tools/methods did you use?

 

[nutt7]

I used a sharp pick and a tiny flathead and worked it out slowly. Gently poke and pry and try not to gouge it too much. A pick with a curve is good to get the o-ring out after the nylon washer comes out

 

[nutt7]

It seems to me like the o-ring does the sealing, and the nylon protects the o-ring.

 

[Snoozer]

I was just going to ask you that.
I might post some more pics in this thread, if you don't mind.
I am right in the middle of a rebuild and SYE on my 241. Its been tough to find a comprehensive thread on it.

 

[nutt7]

Right? The info is tough to come by. Post pics! If I find any that I never posted, I will post them too.

 

[Snoozer]

So "nutt7" is correct; it is helpful to have an assortment of "picks" or, as I think of them: "dental tools".

To remove the nylon ring:
I ended up taking a straight, sharp pick and lightly hammering it straight (90*) into the nylon ring. Then I pushed the pick handle to the left and right to work the nylon ring out. It took me a couple of tries, but eventually I worked it out.

To remove the rubber o-ring:
I used a different pick. This one has multiple angles at the tip, and allowed me maneuver it under the o-ring and then I could twist the pick's point to a position that allowed me to "grab" the o-ring and pull it out.

A new nylon ring and o-ring came in my Rebuild Kit from JB Conversions.

To install the new o-ring and nylin ring:
I lubed the new o-ring and the nylon ring with some silicone grease before installing. I used a small, flathead screwdriver to carefully push the new o-ring in. And I did the same for the nylon ring as well.

 

[nutt7]

Nice! Thanks for completing this with pics and picks!