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  1. #1

    Default "Hi, When I seperated the

    "Hi,
    When I seperated the gear housing from the drive shaft housing part of one of the seals (the lower one) came out with the shaft. Can I change this without removing the drivshaft housing from my boat and dismantling it all? It looks like I may have room if I can remove the water tube. Just pull the tube out right?"

  2. #2
    Join Date
    Aug 2006
    Location
    SW Ohio, USA
    Posts
    10,396

    Default "#3? [url=""]http://www.mer

    Fix minor things (replace wear items for preventative maintenance.) that cause major problems before they break.

  3. #3

    Default "Neither. #10 [url=""]htt


  4. #4
    Join Date
    Aug 2006
    Location
    SW Ohio, USA
    Posts
    10,396

    Default I've never done it before.

    I've never done it before. Give it a try and let us know the result.
    Fix minor things (replace wear items for preventative maintenance.) that cause major problems before they break.

  5. #5
    Join Date
    Jul 2008
    Location
    Northboro, Ma, USA
    Posts
    4,788

    Default This does happen from time to

    This does happen from time to time.

    Yes you can replace it as needed.

    The larger seal above thta one is the seal that keeps the gear oil in the upper.

    The one you are replacing is used to keep water intrusion from getting into the upper female spline drive gear and the verticval drive shaft splines from the lower unit.

    The seal lips go facing UP so the flat can be tapped on to seat it.
    Jack
    Northborough Ma
    Helping others sometimes with an attitude....haha..

  6. #6
    Join Date
    Sep 2009
    Location
    , Minnesota,
    Posts
    9

    Default "I didn't take time to ope

    "I didn't take time to open the links in previous posts, so I apologize if I am repeating something that is detailed there.
    I had to replace those seals a couple years ago on my 1996 Aplpha drive - one had dislodged from it's location, and I was losing grease. There has been an update to those driveshaft seals. The part is now sold as the two different sized seals held together by a small plastic carrier/retainer that heeps them where they belong when installed - yes the retainer stays with them. The NAPA/Sierra kit does not have this up to date seal assembly, so you need to get the real Mercruiser seals.
    I strongly recommend replacing withthe up to date seals since you have it apart already.
    Dave"

  7. #7

    Default "Sorry to ask this again but i

    "Sorry to ask this again but if, as kghost says "The seal lips go facing UP so the flat can be tapped on to seat it" my old seal must have been in wrong with the flat of the seal seated against the driveshaft housing. What way do it go.

    It's #10 in the drawing.

    http://www.mercruiserparts.com/Show_...IMAGES/CRUISER /99964/30067.png&inbr=2203&bnbr=80&bdesc=DRIV ESHAFT+HOUSING+AND+DRIVESHAFT

    Thanks!"

  8. #8

    Default "Some pics of seal: [IMG][u


  9. #9
    Join Date
    Sep 2006
    Location
    Coquitlam, British Columbia, Canada
    Posts
    193

    Default The seal you show in the pictu

    The seal you show in the pictures is designed to be installed with the open side toward the lubricant.

  10. #10

    Default So open side up in this case?

    So open side up in this case?

  11. #11
    Join Date
    Jul 2008
    Location
    Northboro, Ma, USA
    Posts
    4,788

    Default "OK I have the outdrive ser

    "OK

    I have the outdrive service manual in front of me # 6 sterndrive, alpha one, alpha ss, R, MR.

    Both seals in the upper go with the oil seal lips facing UP towards the top of the gear housing......( open side of seal faces UP)"
    Jack
    Northborough Ma
    Helping others sometimes with an attitude....haha..

  12. #12

    Default So the one I have to remove is

    So the one I have to remove is backwards with open side down.

  13. #13
    Join Date
    Jul 2008
    Location
    Northboro, Ma, USA
    Posts
    4,788

    Default "<[img]"http://www.marineengin

    ""
    Jack
    Northborough Ma
    Helping others sometimes with an attitude....haha..

  14. #14

    Default "Yep, the one I have to remove

    "Yep, the one I have to remove is upside-down.

    Any tips or hints / ideas on what to use or how to remove this seal?

    Also, to install new one the manual says to use Loctite 27131? I can&#39;t find that anywhere what&#39;s everyone else using?

    Thanks!!"

  15. #15
    Join Date
    Jul 2008
    Location
    Northboro, Ma, USA
    Posts
    4,788

    Default Just coat it with some good rt

    Just coat it with some good rtv and be done with it.......

    Not a critical seal for gear oil controll only for grease on spline controll from water intrusion.
    Jack
    Northborough Ma
    Helping others sometimes with an attitude....haha..

  16. #16
    Join Date
    Jul 2008
    Location
    Northboro, Ma, USA
    Posts
    4,788

    Default No tips on removal other than

    No tips on removal other than but a new one...........
    Jack
    Northborough Ma
    Helping others sometimes with an attitude....haha..

  17. #17
    Join Date
    Aug 2006
    Location
    SW Ohio, USA
    Posts
    10,396

    Default Try a paint can opener. It ha

    Try a paint can opener. It has a bottle cap remover on one end and a curled flat screwdriver on the other for grabbing a lip on the seal. Try two at a time; one on each side.
    Fix minor things (replace wear items for preventative maintenance.) that cause major problems before they break.

  18. #18
    Join Date
    Sep 2009
    Location
    , Minnesota,
    Posts
    9

    Default "If you get the new part that

    "If you get the new part that has the two seals in the retainer &#40;see my previous post&#41;, they are already oriented properly, as the whole assembly goes right on the shaft.
    Dave"

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