• 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.


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 topics or hijack existing topics. Old topics of a technical nature are like a library book, Please do not write in them.

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

3. Do not take over someone elseís topic (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 topic of your own.

4. If you have a question for the original poster (OP) and the topic 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 topic.

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

6. Please do not post to topics that have been inactive for more than 3 months unless you are the original poster. We have very active forums and any topic 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 topic.

7. Posting at the end of any topic is considered to be hijacking the original posters topic which in turn subjects the topic 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 topic asking you not to reply to old topics. The Red banner will read: Please note this topic has been inactive for 90 days. For the best results, please start a new topic.

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

1962 Johnson 28hp

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


  • 1962 Johnson 28hp

    Picked-up a 1962 Johnson 28hp (RX-10) as a project motor a couple days ago. The previous owner mentioned it sat for several years, but ran good before. So I took a gamble. It was only $50. Plus it came with a good 2 wheel metal cart.

    I tried to check compression last nite, but it was hard to pull. I sprayed some fogging oil in the plug holes, and it pulled a little easier. But I couldn't give it a good full pull. Maybe about 3/4 pull at best? Anyway the compression read 70psi on both holes.
    I read somewhere to try pouring some marvel mystery oil in the plug holes and let it sit for a week or so. I'll give that a try and recheck the compression next week.

    Anyway, in the mean time. My library has a service manual. I'll start looking at that before proceeding on to the usual things like impeller and carb rebuild.

    Is this an easy motor for a newbie to take on? Is it a good runner? Again, for $50, the cart is worth that much. Appreciate any tips or advice.

    jasper
    Attached Files
    '77 Crestliner Voyager Deluxe 16' (semi V), Spartan WondeRoll tilt trailer, '81 Johnson 25 hp, '88 Johnson 30 hp, '87 Evinrude 30 hp


  • #2
    Re: 1962 Johnson 28hp

    it is an easy motor to work on, and very reliable. read this.
    http://forums.iboats.com/showthread.php?t=158086

    you also will need a part manual, as there are not any online.
    http://www.outboardbooks.com/
    FLORIDA GATORS
    TEBOW Country



    Please, NO PM's (Private Messages) regarding boat/engine problems. they will not be answered.
    That is what these forums are for. Post your questions, in the appropriate Forum.

    Comment



    • #3
      Re: 1962 Johnson 28hp

      TD,
      thanks for the awake procedure and manual link.
      I'll lube-up those cylinders tonight.
      '77 Crestliner Voyager Deluxe 16' (semi V), Spartan WondeRoll tilt trailer, '81 Johnson 25 hp, '88 Johnson 30 hp, '87 Evinrude 30 hp

      Comment



      • #4
        Re: 1962 Johnson 28hp

        Anyone else have that twist knob throttle? You can see it in the first pic. Seems you would need two hands to throttle and steer at times. That's weird?
        '77 Crestliner Voyager Deluxe 16' (semi V), Spartan WondeRoll tilt trailer, '81 Johnson 25 hp, '88 Johnson 30 hp, '87 Evinrude 30 hp

        Comment



        • #5
          Re: 1962 Johnson 28hp

          that motor is set up to use controls and steering wheel, if you want to use it as a tiller motor you need to convert it. need to find tiller for a 28-30 hp that vintage, ebay outboard parts.
          FLORIDA GATORS
          TEBOW Country



          Please, NO PM's (Private Messages) regarding boat/engine problems. they will not be answered.
          That is what these forums are for. Post your questions, in the appropriate Forum.

          Comment



          • #6
            Re: 1962 Johnson 28hp

            this is where the parts manual comes in. http://cgi.ebay.com/ebaymotors/25-HP...spagenameZWDVW

            may be easier to do remote control and steering.
            FLORIDA GATORS
            TEBOW Country



            Please, NO PM's (Private Messages) regarding boat/engine problems. they will not be answered.
            That is what these forums are for. Post your questions, in the appropriate Forum.

            Comment



            • #7
              Re: 1962 Johnson 28hp

              yea, I just found a parts manual and will order. In the mean time, I've been looking at the diagrams for the 1968 33hp model in BRP. They look similar.

              Adding a factory tiller handle seems quite involved. I think I can make something with a hand grip in place of the existing throttle knob. I'll think on that for a while. thanks.
              '77 Crestliner Voyager Deluxe 16' (semi V), Spartan WondeRoll tilt trailer, '81 Johnson 25 hp, '88 Johnson 30 hp, '87 Evinrude 30 hp

              Comment



              • #8
                Re: 1962 Johnson 28hp

                There are also a couple of strange things about that motor ... I think.

                I have been under the impression that OMC started putting fuel pumps on the upper bypass cover (port side) by the time that the 28hp model was introduced. On your motor, it looks like the vacuum cutout switch has been mounted in that location, and the fuel pump has been mounted where the cutout should go. There is also a pulse line tapped into the lower bypass cover, which is run around the head and exhaust cover, to the fuel pump.

                I don't think this is a stock arrangement, and I can't imagine why anyone would set the motor up that way. I could be wrong, because I have never owned a 1962 Johnson 28hp, but I'm thinking I'm not. I do own 3 Johnson 33hp motors (essentially the same motor), and had a grandfather who had a 28hp "back in the day." With respect to my grandaddy's motor, I just don't remember it being set up the way yours is. I also don't remember it having the older style fuel pump that you have.

                BTW, you also have the mounting bracket for an electric starter on your Johnson. Its the bracket on the front, starboard side with the "big hole" in the middle. While the later, 33 hp models have a bracket molded into the lower cowl pan for a solenoid, your motor used an external solenoid, mounted in a box that went on the transom. You might still find room in the cowl pan to mount one, however. I did that to a pair of 1958 ERude 35 hp motors that I own. What I found is that it is easier to use a Mercury solenoid, because it is smaller than the OMC unit.

                If you want to add electric start to this motor, you can do it very easily. The starters are still available as new units, and there are plenty around to be purchased used. The used ones are sometimes serviceable, and sometimes need to be rebuilt. The last time I had one rebuilt, it cost me about 100 bucks. That said, I have seen them brand new for not much more. One of the reason why they are still available, is that the same starter is used on a number of small, industrial engines.
                Please don't PM me on advice issues - let's keep that in the forums, so that everyone can benefit. Please note that I do not email PDFs, etc. I have a bandwidth limited aircard for internet access. My avatar does not mean I have any offical link to iboats. I just like it!

                Comment



                • #9
                  Re: 1962 Johnson 28hp

                  There is nothing wrong with the way it is set up. That's all factory correct. That is the correct fuel pump and vacuum switch for a '62. Also, the '62 28hp came with the starter bracket for ease of installation of the accessory electric starter kit.

                  Comment



                  • #10
                    Re: 1962 Johnson 28hp

                    Good info, F_R. I wondered because I have never seen a 28 set up that way that I can remember. Given the gradual change in configuration from the late 50's 35 hp motors, through the later 33hp motors, however, I'm not surprised at goofing on this one.

                    One thing that does come to mind, however, is that finding a rebuild kit for that old pump might be an issue. Is it? And if so, can you just mount a currently available pump in place of the old one?
                    Please don't PM me on advice issues - let's keep that in the forums, so that everyone can benefit. Please note that I do not email PDFs, etc. I have a bandwidth limited aircard for internet access. My avatar does not mean I have any offical link to iboats. I just like it!

                    Comment



                    • #11
                      Re: 1962 Johnson 28hp

                      I just noticed your comment about putting a factory tiller handle on your motor. If you can find the right parts, its actually very easy to do. I feel certain that those parts will be identical to what was on the later 33hp, so you can look at your parts manual for that, to determine what you need. I'll also look at www.shop.evinrude.com later to see if I can help.

                      In short, you will remove the small lever that is located where the handle would be, and then remove the cast aluminum part that is adjacent to that lever. That piece is attached to the motor in roughly the same way that the tiller handle would be. If I remember correctly, the shaft that runs from that point to the gear aft of that point, is different than the one that you need to install a tiller handle. Once the correct piece is installed, you just install the tiller handle, making sure that the gears line up correctly.

                      I'll try to give a better explanation later, after I've reviewed the parts listing.
                      Please don't PM me on advice issues - let's keep that in the forums, so that everyone can benefit. Please note that I do not email PDFs, etc. I have a bandwidth limited aircard for internet access. My avatar does not mean I have any offical link to iboats. I just like it!

                      Comment



                      • #12
                        Re: 1962 Johnson 28hp

                        Hi, Jay.
                        To me, the tiller arm looks like it requires a different steering bracket. And the steering bracket seems like a pain to replace. Please let me know what you come up with.
                        thanks,

                        jasper
                        '77 Crestliner Voyager Deluxe 16' (semi V), Spartan WondeRoll tilt trailer, '81 Johnson 25 hp, '88 Johnson 30 hp, '87 Evinrude 30 hp

                        Comment



                        • #13
                          Re: 1962 Johnson 28hp

                          The fuel pump repair kits are available right here at iboats and everywhere else. Except at the moment they are marked as out of stock at iboats.

                          The tiller arm does indeed install in place of the emergency throttle lever presently on the motor. The steering bracket does not have to be replaced. Piece of cake, no problem once you find the parts. They show up on e-bay all the time.

                          Fuel pump kit: http://www.iboats.com/mall/partfinde...****=073719588

                          Comment



                          • #14
                            Re: 1962 Johnson 28hp

                            Changing the whole steering bracket would be a pain, but I don't think you need to do that. Before reading my explanation, open another window in your 'puter and go to www.shop.evinrude.com.

                            When you get there, click on "Parts" and then look for a window that says "EVINRUDE" in caps - click the arrow and select "JOHNSON." Select the "1968" model year, and then select "33." Once you have done that, pick any of the specific models of a 1968 Johnson 33 hp motor - it shouldn't matter which one. Once you do that, select the "Lower Unit Group" and open that window. What you will see is a parts explosion and a parts list. Look for the "+" and zoom in a bit so you can see the parts better.

                            I am sending you to this motor because this web site does not list OMC motors older than a 1968, but the parts involved should be identical to what is on your motor.

                            The parts that need to be removed and replaced are #15 (Part #377211), which is called the "Throttle Knob and Shaft" and #12, which is called the Throttle Control Cover (Part #305612). In order to remove the Throttle Knob & Shaft, you are going to have to loosen the set screw on #9, which is the Throttle Control Pinion (Part #303142). While you are looking at that part, notice #5, which is the Throttle Control Gear (Part #309188) - we'll get back to that later. When removing the Throttle Control Cover, you will notice that it is secured by a bolt - save that bolt, you will reuse it to secure the tiller arm that you install later on.

                            From this point on, I can't refer you to a parts diagram, because I can't find one that covers the parts that you need. Instead, refer to the image below, which is taken from an owners manual for a 1958 Johnson SuperSeahorse 35hp motor. The tiller arm and throttle shaft are the same as what you will need.





                            Actually, this is the hard part, not because of any particular difficulty in the installation, but because of what it will take to find the parts. Basically, you need two things - the tiller handle assembly and the throttle shaft depicted in this image.

                            The throttle shaft will replace the "Throttle Knob and Shaft," that I mentioned above. If you look at it, you will notice that, instead of having a knob on the end, it has a pinion gear. That gear is what mates up to a similar pinion in the tiller arm that you will install. To secure the new throttle shaft, you will insert it into the steering bracket (there will be holes/guides there) until the end mates with the "Throttle Control Pinion" that we just discussed, and which is secured by tightening the set screw. Next, the tiller arm is inserted where the "Throttle Control Cover" was, using the bolt that was saved to secure it.

                            As these steps are performed, you do have to fiddle with position of the pinions a little to make sure everything is lined up in a way that insures the correct range of throttle travel, via the twist grip. Its a little hard to explain so I'll leave you to a little trail and error here. One thing that you will notice on the pinions where the tiller arm creates an "elbow," is that there is a portion where, instead of having several teeth, there is a continuous section (male). That will fit into a similar section on the other pinion, which is missing teeth (female). Once you get those two lined up, the shaft in the tiller arm will be correctly aligned with the new throttle shaft. The tricky part is getting the twist grip position correct for proper alignment all the way at the other end, so that the removable throttle control pinion lines up properly with "Throttle Control Gear" that I told you to remember.

                            As you do all of this, bear in mind that I am writing these instructions entirely from memory. I haven't done this in about 5 years, and when I did it, I actually went the other way, taking a tiller off of a 1958 ERude 35hp and replacing the parts with those off of a 1969 (I think - don't remember exactly) Johnson 33hp motor. If I have messed up a little, you can take it off of my bill (ZERO DOLLARS )!

                            If you manage to find the parts you need, this whole process will probably only take you about an hour. It really isn't difficult, so don't psych yourself out! I would offer to sell you my tiller handle, but I am a total pack rat and rarely get rid of any of my parts! I am also considering putting the tiller on one of my Johnson 33hp motors, so that I can put it on a 14' flat boat. Anyway - sorry, can't give it up!

                            For finding these parts, Try EBay, Sea-Way Marine in Seattle, Twin City Outboards in MN, or Desert Marine Recyclers (602-689-8336, Jim Carmichael) in Arizona. Desert Marine doesn't have any web presence, so just call the number I provided - you will hear a generic cell phone voice mail message if Jim doesn't answer.


                            PS: F_R was posting as I was writing - just read his entry. If you can't get the fuel pump rebuild kit here, try Sea-Way. They have a very large inventory of NOS items, and may have it.

                            BTW, the manual that I took the above pic from came with a boat that I once bought, but that motor wasn't on it. Like I said, I am a pack rat, so I kept the manual. In finding this pic for you, I noticed that the vacuum cutout and fuel pump arrangement is identical to what is on your motor. I guess I should pay more attention to stuff that is right in front of my face before I open my big mouth, huh?
                            Please don't PM me on advice issues - let's keep that in the forums, so that everyone can benefit. Please note that I do not email PDFs, etc. I have a bandwidth limited aircard for internet access. My avatar does not mean I have any offical link to iboats. I just like it!

                            Comment



                            • #15
                              Re: 1962 Johnson 28hp

                              Thanks, F_R.
                              I appreciate your knowledge on these motors.
                              I'll give that tiller arm a shot.
                              Also, thanks for the advice on the fuel pump.
                              Hopefully, I can get this old motor going with the help of
                              this forum.
                              I'm still waiting for my manual.

                              Thanks again.
                              jasper
                              '77 Crestliner Voyager Deluxe 16' (semi V), Spartan WondeRoll tilt trailer, '81 Johnson 25 hp, '88 Johnson 30 hp, '87 Evinrude 30 hp

                              Comment

                              Working...
                              X