1957 Evinrude Fastwin missing - SOLVED

[WEIGLE]

I searched through the forums but could not find an answer to what ailed me today on the river.

I have not touched a thing on my motor and it has been running PERFECTLY for several months. I ran upriver to fish, then drifted down. When I started my motor about an hour later it was missing terribly and shaking. At WOT it had no power (maybe 5MPH), but twice it surged forward and sounded better but instantly went back to stuttering and shaking. It never lurched forward again after awhile.

I pulled the plugs to check for spark, they are both getting good spark (i even got shocked). It should be worth noting that while the engine was running it smelled like a flooded engine.

The only way it will idle is in the START position, even the slightest bump to a slower speed such as SHIFT will cause the motor to die rapidly.

The low/ high speed knobs have not been touched. The ONLY thing I have recently done was a carb re-build.

What could be happening? It's a model 15020.

 

[rjezuit]

Re: 1957 Evinrude Fastwin missing

Re: 1957 Evinrude Fastwin missing

Sounds like something (a chunk of crud) broke loose from somewhere and found its way to the carb. Rick

 

[WEIGLE]

Re: 1957 Evinrude Fastwin missing

Re: 1957 Evinrude Fastwin missing

I thought about that too - but I checked the fuel filter and there was nothing in it at all. I guess to know for sure I would have to pull the carb off and go through it. That would mean another re-build kit correct? Do you think I can re-use the gaskets?

Another reason why I don't think it was junk was that it worked perfect when I shut it off, then the problem began the instant I started the motor. Wouldn't it start well, then gradually get worse if it was junk?

 

[rjezuit]

Re: 1957 Evinrude Fastwin missing

Re: 1957 Evinrude Fastwin missing

You can reuse the gaskets if you are careful not to tear them. Check float operation while you are in there it could be sticking. Sometimes crud gets caught between the needle and seat. You did replace the needle packing I presume? Rick

 

[learningasIgo]

Re: 1957 Evinrude Fastwin missing

Re: 1957 Evinrude Fastwin missing

When you did your "rebuild" on the carb, did you put the needle packings in dry? If so, this could be the problem. As they begin to absorb a little fuel, they will soften (which is what you want for them to seat). If this is the case, the packing nuts just need tightened up to seat them properly and keep them from allowing air to "suck by". Keep us posted on what you find when you look at the carb. You already know that it will most likely be there. Being an industrial maintenance technician, I know first hand that a lot of times the problems we face are ones we helped cause - nature of the beast. Let us know.

 

[WEIGLE]

Re: 1957 Evinrude Fastwin missing

Re: 1957 Evinrude Fastwin missing

I got a spark plug wire tester. The top cylinder will clear a 1/4" gap with ease, the bottom will not make the gap at all.

I pulled the flywheel off and the points/ condensers look newer. I'm not sure what to do at this point. I guess change the coils, points, plug wires, and condensers huh. Will any auto parts shop have the plug wires I need? The NAPA kit doesn't include anything except a boot for the coils.

It does look a little greasy in there. . . is it ok to blast the entire area with brake cleaner?

 

[58rude]

Re: 1957 Evinrude Fastwin missing

Re: 1957 Evinrude Fastwin missing

I would clean it all up and take some ohm readings. You could have a corroded plug wire or dirty, pitted points. I would just rebuild the plate on the bench and ohm as you go.

 

[WEIGLE]

Re: 1957 Evinrude Fastwin missing

Re: 1957 Evinrude Fastwin missing

I would clean it all up and take some ohm readings. You could have a corroded plug wire or dirty, pitted points. I would just rebuild the plate on the bench and ohm as you go.

How do you take an ohm reading and what should it be? I have a multimeter but no idea how to use it

 

[kfa4303]

Re: 1957 Evinrude Fastwin missing

Re: 1957 Evinrude Fastwin missing

Hi Weigel. I had some similar problems recently. I also rebuilt my carb several times and it was definitely clean, but I eventually discoverd that there were severeal small leaks b/c the carb components weren't tighened up enough. I retightened all the bolts on the carb, air silencer, and bowl and VOILA! she starts easy and idles low and steady.
Hopefully, you'll get luck and you can just re-clean and re-tighten all the carb fittings. I also added an extra gasket btwn the carb body and the intake manifold toohelp make things more air tight. I also agree with learnasIgo that you want to make sure that the packing nuts are seated properly. They can be psky cometimes.
I would clean and re-set your points too. They look a bit corroded from the photos. Just take some fine grit sand paper and sand the points, make sure you remove and dust afterwards, then re-set the points to .020. That should help get spark back. The coils look great and are obviously new. They're pretty reliable these days so I would start with the simplest thing (points) first. If you do need new spark plug wires make sure your get solid metal (copper) core NOT the graphite core wires used on modern cars.
Keep us posted. These little motors are tough, as you well know. You can bring her back to life. Good luck.

 

[WEIGLE]

Re: 1957 Evinrude Fastwin missing

Re: 1957 Evinrude Fastwin missing

Awesome advice. I'm going to try getting spark back before going into the carb again to eliminate one problem at a time.

My carb was rebuilt by a mechanic so I trust him. I stood there while he re-built it and he was very meticulous. The low speed knob wouldn't stay put about 2 weeks ago so I tightened the packing nut and while I was at it snugged the high speed up too.

 

[kfa4303]

Re: 1957 Evinrude Fastwin missing

Re: 1957 Evinrude Fastwin missing

Sounds good. Focus on one variable at a time and elminate them as you go. However, if you should see ANY gas leaking out fo the car, even just a drop or two, that means you may have a bit of an air leak. That's what happened to me. I had a very faint drip from my Hi speed needle and didn't think much of it, but it was just enough of a leak to throw everything out of wack
If you want to buy new points reather than try to clean the old ones, you should be able to find some at your local OMC dealer and/or NAPA auto parts store. They're cheap. About $6-7. Check the s'plugs too. They're also a cheap and easy fix. Good Luck!

P.S.
Here's a link for testing coils, if you really want to, although the modern ones, such as yours, are usually OK.

http://www.youtube.com/watch?v=KT8rk5QWgS0

 

[WEIGLE]

Re: 1957 Evinrude Fastwin missing

Re: 1957 Evinrude Fastwin missing

It does leak slightly around the high speed knob. I haven't thought much of it since it's been doing it as long as I've owned the boat, even after the carb rebuild. It appears to be coming from high speed packing nut. Any ideas wher to inspect?

 

[kfa4303]

Re: 1957 Evinrude Fastwin missing

Re: 1957 Evinrude Fastwin missing

Ah Ha! That little leak could be a big deal. It makes sense if you think about it, the gas and air being mixed in the carb are in an atomized (misty) form, so even the slightest change in the air to fuel ratio can make a big deal. Excess air can cause the motor to race or runaway and/or make starting difficult.
For starters, unhook the fuel line going into the carb. REmove the carb. Drain gas. Next, back out the high speed needle all the way as well as the sleeve that goes around it, then inspect the packing. Make sure they're fully seated and not shredded or torn. They should look like redish brown, fiber washers. I believe there should be two of them. If you have a little metal barrel that the needle screws into, make sure that the packing is behind the metal barrel, such that the needle threads into the barrel, then through the packing behing, then into the carb body. Finally, the outer brass sleeve goes over the needle and is used to tighten everything up, as you described above. Go over the rest of the carb and air silencer (if you have one) too, and tighten up all the screws. Again, tiny amounts of air leaking in/out can make a big difference, so even half a turn on each screw can help. This is all pretty quick and easy. Give it a try and see what happens. Keep us posted.

 

[geoff69]

Re: 1957 Evinrude Fastwin missing

Re: 1957 Evinrude Fastwin missing

I searched through the forums but could not find an answer to what ailed me today on the river.

I have not touched a thing on my motor and it has been running PERFECTLY for several months. I ran upriver to fish, then drifted down. When I started my motor about an hour later it was missing terribly and shaking. At WOT it had no power (maybe 5MPH), but twice it surged forward and sounded better but instantly went back to stuttering and shaking. It never lurched forward again after awhile.

I pulled the plugs to check for spark, they are both getting good spark (i even got shocked). It should be worth noting that while the engine was running it smelled like a flooded engine.

The only way it will idle is in the START position, even the slightest bump to a slower speed such as SHIFT will cause the motor to die rapidly.

The low/ high speed knobs have not been touched. The ONLY thing I have recently done was a carb re-build.

What could be happening? It's a model 15020.

While I concur with everything that has been said RE the carburettor,careful scrutiny of your pics shows that the coil ground wire on the left coil in the picture has what appears to be a crack in the insulation.I am not saying this is definitely the cause of your problem ,but it could be.I had a similar issue with a 1976 6hp that I have,the same fast and slow deal as it intermittently ran on one and two cylinders.I took off the flywheel and found that one of the ground wires was broken and was only contacting part time due to the vibration.Admittedly ,it was easier for me to spot as the wires were bare and it was obvious.I'd take a look if I were you.Don't forget to clean up and retorque the flywheel correctly.
Geoff69

 

[WEIGLE]

Re: 1957 Evinrude Fastwin missing - SOLVED

I found the problem! Small talk aside, the spark plug wire that inserted into the coil was corroded and was not attached. When I loosened the three screws for the coil the thing practically fell over so I knew at that point what the problem was.

I wasn't going to touch it until I ordered all new parts but I didn't have much to do today so I started taking it apart. I'm glad I did. 3.00 worth of solid-copper core spark plug wire and I'm back on the water!

I LOVE this engine!

 

[kfa4303]

Re: 1957 Evinrude Fastwin missing - SOLVED

Congrats! Glad it worked out. Now, back to the water!!!

 

[samo_ott]

Re: 1957 Evinrude Fastwin missing - SOLVED

Yay! I was out in my Fastwin today.. after it snowed!

 

[kfa4303]

Re: 1957 Evinrude Fastwin missing - SOLVED

What is snow? 80 degrees and sunny today. I love Florida

 

[58rude]

Re: 1957 Evinrude Fastwin missing - SOLVED

Way to go. Glad you got it figured out.

 

[learningasIgo]

Re: 1957 Evinrude Fastwin missing - SOLVED

Glad to hear it. I still want to advise you to take the time to pull that carb back off and get that leak fixed. I know everything is running fine now, but the longer that goes like that, the more of a hazard it is. I have had a few times in the past that I have rebuilt carbs just to have to do it again because I didn't get something quite right. It is almost always with the packing too. They can be quite touchy to get a good seal as getting the old packings out and not scarring up the carb is the most important part. Any case, I really think you should check it out. My 2 cents.