1957 Evinrude 18 hp Fastwin Electric 18

[tmise]

Re: 1957 Evinrude 18 hp Fastwin Electric 18

Thanks Chris, I will try that tomorrow and see. If it is bad is there a brand you would recommend. All I've seen are Sierra, Argo, and the OMC Johnson/Evinrude solenoids. I know some are a lot better than others like anything else.

 

[HighTrim]

Re: 1957 Evinrude 18 hp Fastwin Electric 18

As long as it is a marine solenoid you should be good. Cannot use an auto one as you know.

More times than not though, I find it to be a wiring and/or conneection issue, so look into that first.

 

[tmise]

Re: 1957 Evinrude 18 hp Fastwin Electric 18

I will test solenoid as you mentioned, if good will shine up all connections, etc...all the wiring going to and from the solenoid is all new wire including the start and stop/choke switch.

 

[tmise]

Re: 1957 Evinrude 18 hp Fastwin Electric 18

I will test solenoid as you mentioned, if good will shine up all connections, etc...all the wiring going to and from the solenoid is all new wire including the start and stop/choke switch.

Tested the solenoid, it clicked as it should when battery was connected to the two small terminals but no continuity going from big post to the other. She's toast, ordered new one.

 

[tmise]

Re: 1957 Evinrude 18 hp Fastwin Electric 18

Today went out and ran new fuel/air line to engine. Pumped primer button till it filled the glass fuel filter. About the 5th pull engine roared to a start for maybe 4-5 seconds then cut out. Managed to get it to fire up a couple more times but only lasts for a few seconds before it dies. Sounds like fuel to me. The fuel/air lines I just connected to the pressurized gas tank, didn't put any hose clamps on. When I push the primer on the tank it now I can feel it is pressurized, so I don't think it's a problem there. Motor has been sitting for awhile, think maybe I should rebuild the carb if it's not too difficult. Any advice would be appreciated

 

[tmise]

Re: 1957 Evinrude 18 hp Fastwin Electric 18

Went out and tried starting it again. This time I pumped the primer button on tank a good bit, cranked it and fired up, I kept pumping the primer button as it was running, then I stopped pumping it and it stayed running on its own. Let it run for a 5 minutes at various throttle speeds until I tried it at idle that's when it quit. Sounded great when it was running though, lot of smoke out the exhaust, I guess that's expected since I put 21 ounces of 2 cycle oil into 4 gallons of gas. The new impeller I put it is working great as there was a good amount of water coming out. Very happy with the results so far. Going to fire it up again tomorrow and try to adjust the idle speed. I've got it in a 55 gallon drum of water, can I adjust the high speed in that or is that strictly when out on the water? Still curious if I should get a rebuild kit for the carb or leave well enough alone.

 

[ronboonville]

Re: 1957 Evinrude 18 hp Fastwin Electric 18

I think most will tell you to do the hi-speed on the water. seems like I was able to get mine kinda close in a barrel without the prop on, but much better on the water. I have just backed in deep enuf and left on the trailer so I could make adjustments without having to steer the boat too. The carb is up to you and will be excellent experience if you decide to put in a kit. course, if it ain't broke.... then again new packings do wonderful things.

 

[HighTrim]

Re: 1957 Evinrude 18 hp Fastwin Electric 18

Just so you know. Dont overpump the primer button. Too much and you will rupture your diaphragm in the tank. All the button does is work like a ball on modern tanks to send fuel to the carb. When the carb bowl is full, the float rises, and the needle seats, shutting off flow. That is when you feel the button get stiffer. Once that happens, stop pumping it. Usually takes 5 pumps or so to fill the bowl.

You will not be able to properly tune the high speed in the barrel, especially without a test prop. Wait until you are on the water for that. Tune the high speed first at WOT, then back off to an idle and tune the low speed needle.

For your future start in the barrel, start it as you have it, then when running lean out the low speed needle 1/4 turn. Will this let it idle down better?

Cleaning out the carb definatley wont hurt anything. I personally would for peace of mind on what was going on inside. Once you do it a few times, you can have the whole job done in no time at all.

 

[HighTrim]

Re: 1957 Evinrude 18 hp Fastwin Electric 18

I agree with above as well. I find the things that usually need changing are the packing washers and the main jet nozzle gasket. I have hundreds of these 50s omcs, so I have to admit, I rarely buy a kit unless it absolutely needs it. If I put a carb kit in every single one I would need a second job to fund them! I clean them out, recoat the float if necessary with fuel proof dope (if it is really bad I replace), and rebuild as needed. New needle and seat is also a good idea as they are improved to no longer stick by using a rubber tip and a spring clip attached to the float arm.

I soak them overnight in Pine Sol, wash with hot soapy water, blast off with compressed air, then run aerosol carb cleaner through all passages and orifices, wash again with hot soapy water then blast again with compressed air. Cleans them out perfectly.

Adding new packing, ensuring the gasket is sound, and sealing the welch plug for the idle passage ensures you do not have a lean condition from an air leak.

I would also change the fuel line and connectors if they are original. The original line is not ethanol proof and the fuel will deteriorate it, clogging up your newly cleaned carb.

 

[tmise]

Re: 1957 Evinrude 18 hp Fastwin Electric 18

Appreciate the advice as usual. I probably will end up giving it a good cleaning and rebuild. As of now and I know it's early but it is taking quite a few pulls to get it started etc...would be nice to have it fire on a pull or two. I have rebuilt a couple of chainsaw carbs before so I don't think I would have to much of a problem doing it. Solenoid should be in next week so I can use the starter.

 

[tmise]

Re: 1957 Evinrude 18 hp Fastwin Electric 18

Going to order a carb rebuild kit with the float. Also noticed the kits don't seem to come with the high and low speed jets. I unscrewed the low speed out of the carb yesterday just to check to see if there was any wear to the end of it from being over tightened, etc...it did have some wear and would like to replace it. Any good place to buy those?

 

[HighTrim]

Re: 1957 Evinrude 18 hp Fastwin Electric 18

Unless they are really buggered, they will be fine. All they are are glorified faucets. Has been quite some time, I cannot even remember, the last time I had to change one.

In the event you definately need to swap them out, post a wanted ad at aomci.org and a local member will help you out.