Fixing loose throttle 1968 evinrude fastwin 18 hp

[james__12345]

When turning the throttle on this motor, the shaft that goes up into the motor doesn't turn untill the rest of the system has moved quite a bit.

The two gears with the black arrows turn together with the handle, but the control lever with the red arrow doesn't. In the opening in the throttle control gear with the blue arrow, you can see the control lever slipping inside that joint.

I'm thinking it might just be the pin. The pin does not come out into that opening in the gear like I would expect it to. Does anyone have a close picture of the opening in the throttle control gear (blue arrow in the second picture) so I can see how that pin should look, and see if it is sheared off like I'm thinking it is?

 

[AlTn]

Re: Fixing loose throttle 1968 evinrude fastwin 18 hp

that pin has 2 tabs that slide into the groove in your throttle control gear < blue arrow >...just slip off the ss clip at the top of the contol arm, remove the 2 screws that hold the vertical shaft collar, that will free the shaft, slip the shaft up through the rubber boot,push new pin in place, reverse...seems like those pins are ~$6...might not get all the slop,but it's a good place to start

 

[james__12345]

Re: Fixing loose throttle 1968 evinrude fastwin 18 hp

I was pretty sure thats what it was by looking at it, but I wasn't absolutely positive. Thanks for the quick reply, and also going ahead and explaining how to replace it.

 

[kfa4303]

Re: Fixing loose throttle 1968 evinrude fastwin 18 hp

+1. I had the same issue on my '66 20hp, when the little plastic tab that was there wore away. While you can buy a replacement piece, I just screwed in a small SS bolt and it works great. As you can see, I had to do the same thing with the idle adjust screw, but they both work great now and will never rust or ware out. I never realized how sloppy it was before hand. The throttle response is now instantaneous.

 

[james__12345]

Re: Fixing loose throttle 1968 evinrude fastwin 18 hp

I pulled it apart a few mins ago, and actually both of the tabs were broken off. No wonder it was so sloppy. I believe I'll steal that bolt idea for now. Since it is just a 6 dollar part (I checked, that was pretty close to right) I'll probably go ahead and order one at some point when theres other things I need to get. I planned on trying to make one out of some scrap plastic of some kind as a quick fix, but I like the screw idea alot better.

 

[kfa4303]

Re: Fixing loose throttle 1968 evinrude fastwin 18 hp

I just left the old, plastic peace in place and tapped the SS bolt into until it just came out the backside. It's very solid and doesn't move at all. The idle adjust screw is just your basic 1/4'' x 20 x 2' SS bolt. It would sometimes vibrate free after a day on the water, so I added a little nyloc washer to keep it in place after I had the idle dialed in where I wanted it. Works great and everything stays where you want. Best of all it only costs about $3 and you can get all the bits at the local hardware store. I've done all sorts of other Frankenstein mods to the motor including a PVC tiller extender, gear shifter. They both work great and cost less than $10 total.

 

[james__12345]

Re: Fixing loose throttle 1968 evinrude fastwin 18 hp

I used the screw idea and it worked great while running the motor in a barrel, but before getting to go to the lake again, I ended up having to place another order for more parts (fuel pump kit, and lower seal kit) so i went ahead and just ordered a new piece for it, since it was only 5 or 6 bucks. Just wanted to update the thread and kinda close up the question and not leave anything hanging.

I've seen the pvc tiller extender but I've never saw the shifter extender. I'd like to see how exactly you went about doing that one.

 

[kfa4303]

Re: Fixing loose throttle 1968 evinrude fastwin 18 hp

Well now you're learning that BOAT = Break Out Another Thousand. At least it's a new problem though It's worth it to order the part if you're getting other stuff while you're at it. The fuel pump and lower unit reseal aren't hard, or require any special tools. Here are some links that can walk you through both jobs as well as some pics of my motor with gear shifter and tiller extender.

http://forums.iboats.com/johnson-evinrude-outboards/fastwin-lower-unit-seal-faq-277190.html
Rebuilding the OMC Fuel Pump

(fancy schmancy tiller extenders)

(I've since changed the wooden dowel in the pic to PVC as well)

 

[james__12345]

Re: Fixing loose throttle 1968 evinrude fastwin 18 hp

I actually have the links for the seal replacement and pump rebuild saved in my favorites already. Thanks for pointing them out to me though. I hadn't thought about that bracket you attached that support for the shifter handle to. I'll definitely be doing that to mine. That handle is just a little bit of a reach to get to. So far I haven't needed to extend the tiller handle, but the only time I've had this boat motor combination out, I had someone with me. If I were to take it out alone I might need to move a little further forward and use the tiller extension. I do have my battery up near the front of the boat, that helps the balance a lot. I'm also ordering the shift rod bushing tool from frank. Hopefully I'll get this thing going soon.

 

[kfa4303]

Re: Fixing loose throttle 1968 evinrude fastwin 18 hp

yeah the little gear shift push/pull lever is great. No more reaching around the side to try to flip it into/out of gear. I can sit on my rear bench/cooler seat and simply reach behind on my right side to put the motor in gear as needed. The tiller handle is nice because I can stand up and actually see where I'm going, which is kinda handy with all the oyster bars, alligators and logs around here Being able to shift my weight around is nice too.

 

[james__12345]

Re: Fixing loose throttle 1968 evinrude fastwin 18 hp

I got the replacement pin put in, so that problem is solved. I also ended up replacing my idle screw with a nylon screw, because it was almost broke off. I screwed a wing nut on to it, then put it through the old spring, then screwed it in. I'm going to use some superglue or something and glue the wing nut to the head of the bolt to make it hold in place on the bolt to adjust it with. I would like to know though, if you remember, what size the screw is that holds the support for the shifter extender, the one that holds the bigger piece of the pipe on to the existing bracket on the side of the motor.

 

[kfa4303]

Re: Fixing loose throttle 1968 evinrude fastwin 18 hp

HI james. I can't remember the exact size of the bolt, but it was pretty small. I want to say it's 1/8", or smaller, something like that. I just used the existing mount for the control cable clamp and it happened to line up perfectly. I'll see if I can get a pic an post it later.

 

[james__12345]

Re: Fixing loose throttle 1968 evinrude fastwin 18 hp

HI james. I can't remember the exact size of the bolt, but it was pretty small. I want to say it's 1/8", or smaller, something like that. I just used the existing mount for the control cable clamp and it happened to line up perfectly. I'll see if I can get a pic an post it later.

I know the bracket you're talking about, I just didn't have a screw that fit it, and I was hoping you might remember what it was so I didnt have to buy several different ones to try. The only screws I had handy at the time were 4x20 and those were too big. I might have some other sizes in the shop, but I didnt have time to go digging around out there today.