Registered users don't see ads


please help lol

Discussion in 'Big Boats' started by HUDSON, Mar 3, 2018. Add this thread to a FAQ

  1. HUDSON

    HUDSON

    Joined Oct 22, 2017
    5 posts, 0 likes
    hunter 37c
    ca pickering
    Hi friends
    I am a new sailor and a new hunter 1984 37c owner . As launch day is coming quick as we all know . The repairs and maintenance needs to be done . I found out in the fall I need a new stuffing box and cutlass baring and a stuffing box. As my girl didnt come with any paper work or even a plate on the engine lol
    I am sure its a yanmar 3qm30 . Transmission unknown
    Can anyone help me with what size stuffing box and type i should get ? I understand there are some new options ???
    Also what size cutlass bearing

    Thanks in advance
    H
     


  2. uncledom

    uncledom

    Joined Jun 11, 2011
    966 posts, 169 likes
    Hunter 41
    US Lewes
    That is determined by prop shaft size. I prefer the PSS dripless shaft seal but many people are of a different opinion.
     


    JamesG161 likes this.
  3. JamesG161

    JamesG161

    Joined Feb 14, 2014
    2,623 posts, 673 likes
    Hunter 430
    US Waveland, MS
    :plus::plus:

    And don't forget to install your shaft Zincs to protect the shaft and propeller from galvanic corrosion.:)
    Jim...

    PS: You can search this site for PYI or PSS seals for many discussions and web links.
     


  4. Terry Cox

    Terry Cox

    Joined Dec 25, 2000
    3,175 posts, 298 likes
    Hunter Passage 42
    US Shelter Bay, WA
    Our boat model is different, and the shaft size is 1.25". If yours is about the same, with a bronze stuffing box, it will take 3/16th inch packing material. Not sure why your box needs replacing. Usually built to last the boat life. Cutlass bearing a different matter.
     


  5. stuartsw

    stuartsw

    Joined Sep 22, 2009
    73 posts, 7 likes
    Hunter 36
    US Seattle, WA
    The stuffing box packing DOES need to be replaced, based on how much water ir’s Allowing in. Bought my h36 new in 2009, packing needed to be replaced in 2016.
     


  6. Tally Ho

    Tally Ho

    Joined Jan 7, 2011
    971 posts, 122 likes
    Oday 322
    US East Chicago, IN
    I can’t help with the shaft size or stuffing box, but I did a new shaft on my O’Day 322 last year over the winter...

    Hardest parts were removing the coupler from the shaft (I was trying to preserve the old shaft), removing the shaft / installing new shaft with out dropping rudder.

    If you are not going to save the old shaft, you can cut it in sections to get it, and the old coupling out. But you should check to see if you can get the new shaft in past the rudder. Having the old cutlass bearing out (you should replace this at the same time) gives you a little play in the shaft and you might get it past the rudder. I did, but took some paint off the rudder.

    Here are a couple of videos that may be helpful.

    Cutlass bearing removal/ replacement:


    Coupling removal:


    Shaft removal:


    Shaft installation:


    Are you going to do this yourself? Or hire it out?

    Greg
     


  7. Brian D

    Brian D Moderator

    Joined Feb 17, 2006
    3,891 posts, 578 likes
    Lancer 27PS
    US MCB Camp Pendleton, Ca KF6BL
    Tally, nice videos. That first video, I was wondering why you didn't make a tandem ratchet? Would have been easier than going from one bolt to the other bolt. Just a thought.
     


    LloydB likes this.
  8. Tally Ho

    Tally Ho

    Joined Jan 7, 2011
    971 posts, 122 likes
    Oday 322
    US East Chicago, IN
    Never heard of a tandem ratchet. Quick Google search didn’t turn up much. What is it?

    For pressing out the strut bearing, operating both bolts at the same time would be great. They didn’t take a lot of effort to turn. Not so much on the coupling. Plus there was very little room to work in my engine room (can’t even call it a “room”):solame:.

    Shoot me a link to a tandem ratchet.

    Greg
     


  9. justsomeguy

    justsomeguy

    Joined Feb 20, 2011
    6,181 posts, 740 likes
    Island Packet 35
    US Tucson, AZ/San Carlos, MX
    Shoot everybody, Brian. o_O
     


  10. Brian D

    Brian D Moderator

    Joined Feb 17, 2006
    3,891 posts, 578 likes
    Lancer 27PS
    US MCB Camp Pendleton, Ca KF6BL
    Take two like ratchets and connect a crossbar to them. Simple, really.

    Drawing1.jpg
     


  11. Tally Ho

    Tally Ho

    Joined Jan 7, 2011
    971 posts, 122 likes
    Oday 322
    US East Chicago, IN
    Thanks Brian. Never seen that before.


    Greg
     


  12. Brian D

    Brian D Moderator

    Joined Feb 17, 2006
    3,891 posts, 578 likes
    Lancer 27PS
    US MCB Camp Pendleton, Ca KF6BL
    I know, silly, but as I was watching you tighten each lug I thought if I had two ratchets I could do it in tandem keeping the spacing correct. Oh well, that is what I would have done. Silly.
     


  13. Tally Ho

    Tally Ho

    Joined Jan 7, 2011
    971 posts, 122 likes
    Oday 322
    US East Chicago, IN
    Would well with ratcheting wrenches like you show in the example. Not so much with non-ratcheting box wrenches. I don’t know if I have 2 socket ratchets the same length

    :banghead:

    Greg
     


  14. yoms1984

    yoms1984

    Joined Apr 27, 2015
    5 posts, 0 likes
    Hunter 37 Cutter
    US Perth Amboy


  15. justsomeguy

    justsomeguy

    Joined Feb 20, 2011
    6,181 posts, 740 likes
    Island Packet 35
    US Tucson, AZ/San Carlos, MX
    Brilliant!
     


  16. dakno

    dakno

    Joined Jun 22, 2009
    126 posts, 6 likes
    Hunter 41DS
    US new orleans
    That is a great boat. Your should go to the Cherubini owners forum
     


  17. Johnb

    Johnb

    Joined Jan 22, 2008
    1,042 posts, 78 likes
    Hunter 37-cutter
    US Richmond CA
    Our HC 37 has a 1 inch propeller shaft. Per suggestion above post in the Cherubini forum.
     


  18. DayDreamer41

    DayDreamer41

    Joined Oct 29, 2016
    795 posts, 322 likes
    Hunter 41 DS
    Un Port Huron
    As for getting the shaft removed I have read that you can easily unbolt the engine mounts and jack the engine up enough to slide the shaft under. I have also read that when replacing the shaft you should also replace the coupling.
     


    Last edited: Mar 7, 2018
  19. Justin_NSA

    Justin_NSA

    Joined Jul 7, 2004
    4,535 posts, 672 likes
    Hunter 30T
    US Cheney, KS
    You have to measure your stern tube diameter and your shaft diameter to determine what size shaft seal you need. If you decide to go 'dripless', I started a thread that mentions some options. It might be of some use. I went with the Lasdrop Gen II
    thread: https://forums.sailboatowners.com/index.php?threads/dripless-pss-or-lasdrop.190058/