• If this is your first visit to the iboats.com Boating Forums, be sure to check out the FAQ. To post a question or comment, begin by signing up. To start viewing messages, select the forum that you want to visit from the selection below.
  • ALL iboats Forum Members and Guests:
    To show our appreciation for your participation in the Forums, we're offering an exclusive Forums-only discount good for an additional 5% off your iboats.com order for a limited time.
    To redeem, simply call our Customer Service Team at 800-914-1123 (Open M-F, 9am - 8pm Eastern Time) and mention the Forums 5% off discount. Offer excludes engines, trolling motors, and electronics.

Announcement

Announcement Module
Collapse

Help Tip: If you have a question that has not been answered to your satisfaction in the archives, it is always best to start a new thread of your own. By starting your own thread, you will receive the maximum number of views by forum members.

Below are some additional forum policies in hopes of all iboats members will follow, Thank you.

1. Please do not reply to old threads or hijack existing threads. Old threads of a technical nature are like a library book, Please do not write in them.

2. Old threads should be considered archives and used for reference only. Please do not reply to them.

3. Do not take over someone else’s thread (aka hijack) with your own question, even if it is similar. If you have a question that has not been covered to your satisfaction in the archives, it is always best to start a new thread of your own.

4. If you have a question for the original poster (OP) and the thread is over 30 days old, send the OP a PM, he may not even visit the forums any longer, or may not notice your question in the old thread.

5. By starting your own thread, you will receive the maximum number of views by forum helpers that may not even notice your question when it’s posted at the end of someone else’s thread. And those answers will be specific to your particular issue.

6. Please do not post to threads that have been inactive for more than 3 months unless you are the original poster. We have very active forums and any thread that remains inactive for that long should be considered "dead". It is especially confusing when there is an entirely new question posted to an old thread.

7. Posting at the end of any thread is considered to be hijacking the original posters thread which in turn subjects the thread to be closed if it continues to happen thus not making it fair to the original poster in the future had for some reason he/she needed to return for additional information or provide an update of the problem solved which is always welcomed within a reasonable amount of time frame.

8. Please note that you should see a red banner pop up near the bottom of each inactive thread asking you not to reply to old threads. The Red banner will read: Please note this thread has been inactive for 90 days. For the best results, please start a new thread.

Thank you all in advance for doing your part in helping iboats run a smooth ship.

Additional forum rules linked below.
http://forums.iboats.com/forum-rules-guidelines-405/
See more
See less

Gimble bearing removal update.

Page Title Module
Move Remove Collapse
X
Conversation Detail Module
Collapse
  • Filter
  • Time
  • Show
Clear All
new posts


  • Gimble bearing removal update.

    I have reviewed the different ways to remove gimble bearing but before I start cranking on a bearing puller I want to be sure there is no retaining ring holding the bearing in place.
    My drive serial # is OL935713 do I set up the puller and just crank?
    I have not removed the bellows assy can the bearing be removed through it.

    Update, Had to drill it out spent 2 hours drilling 3/16" holes in aluminum outer ring then opened up every other hole to 1/4" installed bearing puller and it slid out easy.
    If you read the full post you will see the progress.
    Last edited by ulster1; March 12th, 2010, 03:20 PM. Reason: Got it done update


  • #2
    Re: Gimble bearing removal ???

    Crank away....

    Bearing comes out though the bellows, no problem...

    Chris.......
    The world takes on a whole new perspective when viewed from 100' below...



    1972 Bertram 'Bahia Mar' 20
    2006 Mercruiser 4.3MPI (0W617679) w/Alpha 1 Gen II (0W829301)
    **
    Please don't send service questions in private messages. That's what the forum is for. Messages of thanks, always accepted.
    **
    Member of the month - April 2013. http://www.iboats.com/blog/achris-member-of-the-month/

    Comment



    • #3
      Re: Gimble bearing removal ???

      If you haven't replaced the bellows in a few years now would be the time.
      "It is not death that a man should fear, but he should fear never beginning to live. When you arise in the morning, think of what a precious privilege it is to be alive - to breathe, to think, to enjoy, to love." ~ Marcus Aurelius

      Comment



      • #4
        Re: Gimble bearing removal ???

        When they set that bearing up at the factory the removal of the bearing (not the race) comes out at 1 and 7 O'clock. You need no puller for that, it "turns" outward in the race (you should be able to see the cut out in the race). Once lined up and turned, you just yank it out. Reassembly the same way. Unless you need to replace the race, the bearing is all we changed out.

        If replacing the race too; there is a large snap ring holding the bearing race in. Slapping it with a hammer puller will yank it out but you may be replacing the gimbel housing if you do.

        Comment



        • #5
          Re: Gimble bearing removal ???

          Originally posted by backyard mechanic View Post
          When they set that bearing up at the factory the removal of the bearing (not the race) comes out at 1 and 7 O'clock. You need no puller for that, it "turns" outward in the race (you should be able to see the cut out in the race). Once lined up and turned, you just yank it out. Reassembly the same way. Unless you need to replace the race, the bearing is all we changed out.

          If replacing the race too; there is a large snap ring holding the bearing race in. Slapping it with a hammer puller will yank it out but you may be replacing the gimbel housing if you do.
          WRONG, WRONG, WRONG..... JUST PLAIN WRONG!

          Read all the service manuals and all the service bulletins..... Merc DO NOT recommend changing the bearing without replacing the carrier (it's a carrier, not a race). Mercruiser even started putting the bearing in so the slots were facing forward. To stop exactly that!

          Mercruiser also stopped putting snap rings in the gimbal housing in 1970!!!

          Backyard Mech,

          Please keep your backyard/shadetree techniques to yourself. This forum is trying to show people the right way of doing things, not the sham way!

          Chris..........
          The world takes on a whole new perspective when viewed from 100' below...



          1972 Bertram 'Bahia Mar' 20
          2006 Mercruiser 4.3MPI (0W617679) w/Alpha 1 Gen II (0W829301)
          **
          Please don't send service questions in private messages. That's what the forum is for. Messages of thanks, always accepted.
          **
          Member of the month - April 2013. http://www.iboats.com/blog/achris-member-of-the-month/

          Comment



          • #6
            Re: Gimble bearing removal ???

            Achris Thanks 1970s and no more snap ring so I am going to just pull the bearing out with a puller.
            FYI all ---------- This model is in the reverse way so the bearing can not be removed by rotating and removing through the slots.

            Comment



            • #7
              Re: Gimble bearing removal ???

              in fact the merc manual IN BOLD PRINT states the notches face FORWARD.
              but whats funny is the same bearing in a Yamaha shield the manual states the notches face aft.
              however BOTH manuals state the carrier and bearing are a matched set and do not mix and match.
              I simply follow the service manual as all I am tasked with is a quality lasting repair, the engineering was already done.
              no tech questions by PM, they wont get answered.
              you have to be trusted by the people that you lie to .

              Comment



              • #8
                Re: Gimble bearing removal ???

                Originally posted by achris View Post
                WRONG, WRONG, WRONG..... JUST PLAIN WRONG!

                Read all the service manuals and all the service bulletins..... Merc DO NOT recommend changing the bearing without replacing the carrier (it's a carrier, not a race). Mercruiser even started putting the bearing in so the slots were facing forward. To stop exactly that!

                Chris, although I DO believe that it is better to replace the unit as a whole, I do not believe the statement in the service bulletin where it says the number one reason not to simply replace the bearing is because...

                The bearing is selectively fitted to the cartridge during manufacturing and must remain together as a matched set.

                I genuinely do not believe they custom fit each bearing and cartridge together when they make them. (I can see some line assembly worker with a set of calipers making sure this bearing is the right fit for that cartridge. )


                Reason number two is probably the real reason:

                Secondly, bearing may be damaged from lack of lubrication, if bearing is installed backwards
                Ah! That I can understand! Customers - or mechanics - replacing the bearing and not understanding that the grease hole needs to be on the same side as the slot in the cartridge - no grease gets to the bearing... the rest is history.


                Originally posted by achris View Post
                Backyard Mech,

                Please keep your backyard/shadetree techniques to yourself. This forum is trying to show people the right way of doing things, not the sham way!
                I don’t always agree with all the posters…. But a forum is just that - a forum. Where people are free to share ideas. Not all ideas are good, or even wise…. And it is good to point that out. BUT - I for one am glad to see everyone’s input. But that’s just me.

                Comment



                • #9
                  Re: Gimble bearing removal ???

                  Just back from the boat and very fustraited??
                  Could not get the bearing out I followed the instructions which indicated to use threaded rod and brace behind the bearing and across the gimble housing I cranked until I thought I was going to bust a gut and then gave up for the day.
                  Are we sure there is no snap ring on this model 1991 OL935713 in looking at the sk matics on line I do no see one but now I am begining to wonder.
                  I think I will switch from a 1/2" nc to 1/2" nf which would give me more torque I don't think a 5/8 would be able to get in what do you folks use?

                  Ulster1

                  Comment



                  • #10
                    Re: Gimble bearing removal ???

                    Check out thos post. In particular, I would get the puller that 45Auto mentions near the lower half of the post.

                    http://forums.iboats.com/showthread....gimble+bearing
                    1998 Wellcraft Eclipse 24 Cuddy
                    Volvo Penta Duo-Prop 7.4L "LK"

                    2006 Sun Tracker Party Barge 21
                    Mercury 90 4-Stroke FI
                    "Common sense is not very common"
                    "Failing to prepare is preparing to fail." -- John Wooden

                    Comment



                    • #11
                      Re: Gimble bearing removal ???

                      fishermark
                      yes the carriers ARE matced as the bearing is ground and very easy to maintain a less than .oo1 tolerance the carrier is machined aluminium making tolerances a bit tougher to hold.
                      doesnt matter which way it goes as long as the hole lines up as far as lubrication goes.
                      if you have ever had one that was previously installed with the notches aft,incorrectly, and had the bearing cock on the driveshaft during removal you would know.
                      if you have ever seen the damage caused when the bearing spins in the carrier because the bearing outer race did not propely fit the carrier,you would know.
                      its just to simple to reassemble the machine the way it was designed and it works right 100% of the time with no muss or fuss or later having to pull the engine to remove the drive cause the beaing is cocked on the shft.
                      ulster
                      no snap ring on your model but sometimes they get very tight,moreso if the bellows has been leaking.
                      just follow the service manual for dissasembly and reassembly,manual can be downloaded from this very site.
                      if you follow ALL the correct procedures replacing bellows,gimbal bearings and shift cables is easy,straight forward and simple.
                      go off manual and you may find the shift interrupt is a pain as well as some of the other procedures.
                      no tech questions by PM, they wont get answered.
                      you have to be trusted by the people that you lie to .

                      Comment



                      • #12
                        Re: Gimble bearing removal ???

                        Thanks Rodbolt, I am going to just crank until something happens will let you know how I make out. No water in this area looks great.

                        Comment



                        • #13
                          Re: Gimble bearing removal ???

                          I really am not advocating replacing just the bearing. And I will accept at face value that this is a matched set.

                          I don't understand what you mean here however:

                          Originally posted by rodbolt View Post
                          if you have ever had one that was previously installed with the notches aft,incorrectly, and had the bearing cock on the driveshaft during removal you would know.
                          Are you talking about installing the whole assembly with the notches aft? That doing it that way causes a problem? It is my understanding that even Mercruiser put them in with the notches facing aft originally. They only turned the bearing assembly around due to the fact that people were replacing only the bearing.

                          How does the fore /aft direction of the assembly cause the bearing to cock on the driveshaft?

                          Comment



                          • #14
                            Re: Gimble bearing removal ???

                            Originally posted by Fishermark View Post
                            I really am not advocating replacing just the bearing. And I will accept at face value that this is a matched set.

                            I don't understand what you mean here however:

                            Originally posted by rodbolt
                            if you have ever had one that was previously installed with the notches aft,incorrectly, and had the bearing cock on the driveshaft during removal you would know.
                            Are you talking about installing the whole assembly with the notches aft? That doing it that way causes a problem? It is my understanding that even Mercruiser put them in with the notches facing aft originally. They only turned the bearing assembly around due to the fact that people were replacing only the bearing.

                            How does the fore /aft direction of the assembly cause the bearing to cock on the driveshaft?
                            I think Rod's saying that when the carriers were installed with the slots aft, and someone has replaced just the bearing and it was too loose, as the drive is removed the bearing cocks down and locks the drive yoke. The only way to then get the drive out the rest of the way is to remove the engine so you have access to the yoke and can straighten it up to finish pulling the drive off.... Nice little earner if you didn't do the original bearing replacement.

                            Chris......
                            The world takes on a whole new perspective when viewed from 100' below...



                            1972 Bertram 'Bahia Mar' 20
                            2006 Mercruiser 4.3MPI (0W617679) w/Alpha 1 Gen II (0W829301)
                            **
                            Please don't send service questions in private messages. That's what the forum is for. Messages of thanks, always accepted.
                            **
                            Member of the month - April 2013. http://www.iboats.com/blog/achris-member-of-the-month/

                            Comment



                            • #15
                              Re: Gimble bearing removal ???

                              dunno about a nice little earner but Achris is spot on.
                              however it only seems to happen at the spring time crunch when I am already 6 weeks behind.
                              no tech questions by PM, they wont get answered.
                              you have to be trusted by the people that you lie to .

                              Comment

                              Working...
                              X