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?
