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  1. #1
    Join Date
    Apr 2009
    Location
    Raleigh, NC
    Posts
    41

    Default just replaced my shaft packing

    I just replaced the shaft packing in my '05 Mobius LSV. It was fairly easy. It took about 1.5 hours, and I'm kind of slow. I made a little tool out of a piece of coat hanger to use for removing the old fiber that worked really well. I've attached a picture of it and a closeup of the tip. The large bends are just a way to hold it. I bent the tip 90 degrees and then ground it down to a point to be able to grab the old fiber. I also attached a picture of the wrench I used. It's a plumbing wrench I got at Home Depot.

    I was a little surprised when I removed a total of 5 pieces of fiber (none of which were broken). The instructions I used said to install 2, maybe 3 pieces.

    I replaced it with 3 pieces of GOR fiber. When I hand tightened it at the end of the instructions, it went all the way up against the lock nut. Does that mean I need to add another piece of fiber? Maybe that's why there were 5 in there previously?

    I haven't put it in the water yet to see if it is leaking.
    Attached Images Attached Images

  2. #2
    Join Date
    Aug 2008
    Location
    Long Island - north shore
    Posts
    22

    Default

    Hey Wolf,

    I'm in the process of replacing the packing in my '06 LS.

    Question: What size diameter packing did you/we use? I understand there's different thicknesses?

    Any help would be appreciated.

  3. #3
    Join Date
    Apr 2009
    Location
    Raleigh, NC
    Posts
    41

    Default

    According to the instructions I linked to (and other posts I've seen on this site), it's 3/16" for V-drives and 1/4" for direct-drives. So, I used 3/16". Those instructions say to cut the packing to lengths of 4 1/8". It didn't say if the length is any different when using 3/16" instead 1/4". 4 1/8" seemed just right for me. I cut the first length to 4 1/4" just to check, but it was just a bit long.

    I saw other people post that getting the old packing out was the hardest part. That's why I made the little tool from a coat hanger. So, my only advice would be to make something like that.

  4. #4
    Join Date
    Feb 2006
    Location
    Birmingham
    Posts
    1,166

    Default

    I ended up having to put in four pieces in my 02 LSV. The way I measured mine was to crawl under the boat and wrap the rope packing around the shaft and cut it to the correct size. Then I just got inside the boat and put in the pieces I had cut. I also cut about three extra pieces and put them in a zip loc baggie "just in case".

  5. #5
    Join Date
    May 2009
    Location
    AL
    Posts
    65

    Default

    I've got an 06 LSV that I recently purchased. I've never changed packing in a V drive until this one so I wasn't sure how. I read the same instructions as mentioned in the post above. I didn't totally understand the instructions.

    It says something about sliding the shaft down into the strut. Did yall understand that? So I decided to do what made since to me.

    I loostened the jam nut enough to take the big packing nut off and slide it up the shaft. Then I removed any old packing from inside the big packing nut.

    I only see packing inside the big nut. There is no room for packing any where else that I can see.

    Does anyone no if there is packing down under that rubber hose piece that is clamped around the drive shaft as it goes through the hull?

    I installed two pieces of 3/16" packing inside the big nut and run it back down hand tight and snugged it up a bit with channel locks.

    It leaks about 1 drop every 15 - 20 seconds. It seems to work fine.

  6. #6
    Join Date
    Feb 2006
    Location
    Birmingham
    Posts
    1,166

    Default

    Quote Originally Posted by LSM View Post
    I read the same instructions as mentioned in the post above. I didn't totally understand the instructions.

    It says something about sliding the shaft down into the strut. Did yall understand that? So I decided to do what made since to me.
    I never noticed that line before!! It is probably a cut and paste error when Brian sent me the instructions. I bet this is a small section that he copied from a larger set of instructions on how to replace the drive shaft. You are correct, in this case it does not make sence and should be ignored.

  7. #7
    Join Date
    Apr 2009
    Location
    Raleigh, NC
    Posts
    41

    Default

    I ended up adding a 4th piece of packing. What I realized is that eventually, it is going to start leaking and need to be slightly tightened. If it starts out as tight as it can go, there's no way to tighten it further in the future.

    When I got to the lake, it worked great. I had almost no leaking at all (my understanding is that the GOR fiber is supposed to be almost dripless).

    I must have actually used instructions from a different post because mine didn't have that strange line in it. When I started the thread, I just searched for something that looked the same as mine but didn't read it carefully. LSM - sorry about the confusion it caused you.

    For anyone else, the only suggestion I have is to mark the shaft nut in one spot and then use that spot as a reference for where you have the ends of each piece of packing meet. I.e. you'd have the ends of the first piece meet where you marked it. Then, the ends of the second piece would meet opposite of where you marked it. The ends of the the third piece would be back to where you marked it.

    If you don't mark it, you have no way of knowing where the ends of the first 2 pieces are when you add the 3rd piece.

  8. #8
    Join Date
    Jan 2009
    Location
    Southern Alberta
    Posts
    28

    Default

    Thank you for the info Wolfpack.

    I just adjusted mine this weekend. I like the wrench that you found. I had a difficult time finding a wrench that I could get into the space. I ended up using a large water pump plier.

    Next time I am at Home Depot I will pick up a wrench like you used and leave it in my boat.

  9. #9
    Join Date
    May 2007
    Location
    Naperville, IL
    Posts
    315

    Default

    Quote Originally Posted by ICWater View Post
    Thank you for the info Wolfpack.

    I just adjusted mine this weekend. I like the wrench that you found. I had a difficult time finding a wrench that I could get into the space. I ended up using a large water pump plier.

    Next time I am at Home Depot I will pick up a wrench like you used and leave it in my boat.
    That looks like an oil filter wrench. You can find it in any auto parts store, or WalMart for that matter. I don't know that you'll find it in the Home Depot type store.

  10. #10
    Join Date
    Jan 2009
    Location
    Southern Alberta
    Posts
    28

    Default

    Thank you Wayne

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