1956? 12hp, Sea King

[F_R]

Re: 1956? 12hp, Sea King

I think you may be right about the pump. I actually thought of the same thing, but i wanted to be sure. their is plenty of room for the taller pump. Is it the same screw pattern, i mean will it match up to the hole, because the 7351 is for a 25hp i believe and do i need to worry about a higher fuel flow rate or is that relative. I guess it probably wouldnt matter, the carb is only going to except so much fuel, right? Incidently the PN # you mentioned didnt coralate. The # i found was a 304 sumpin sumpin. at this point im willing to just take a chance and purchase it to see. Based on the pics you saw are we sure its a Sea King, Im sure we would have mentioned that if it wasnt:redface: To throw another perverbeal (spelling) wrench in the wheel or (boat motor). what about lowerend gaskits and carb kit for this gem.

Again, I cant tell ya'll enough how great this is being able to do this online with you guys, your knowledge is unsurpassed.

Thanks, Pete

The pumps all have the same mounting pattern. The number I gave you was right out of the 1954-56 Gale parts book. However, OMC has changed the number probably close to a dozen times up through the years. Then along comes Sierra and changes some more. They will all work if they'll fit in the space. Yes, I prefer the larger Sierra because of it's better capacity. The pressure is the same. Better have too much capacity than too little. And you are correct, the carburetor determines how much fuel actually flows. Yes, I am certain that it is a Sea King. I just can't narrow it down to the exact year without the model number.

A Sierra/iboats 18-7043 carb kit will work just fine. As for lower unit parts, the water pumps should be the same for the models I quoted, but you will have to be careful if you get deeper into it. That is an area where changes may have been made, accounting for different model numbers.

Many, but not all, parts for your motor are the same as a '54 Evinrude 15hp.

Look on the side of the powerhead in the area where the fuel pump goes for a quarter-sized freeze plug with numbers stamped on it. Those will be the serial number and if you are lucky, also the model number.

 

[Paramedpete]

Re: 1956? 12hp, Sea King

Outstanding, this is great info. I am pressing forward with the next step of purchasing the fuel pump, the 7350, just kidding the 7351. where can I get that 54-56 manual/parts book? or at least a breakdown schematic of the motor . The gaskits I need are for the lower end housing, apparently the previous owner tried to use "gaskit in a tube" and it didnt work to well. I have some oil leaking down there as i try to fire it up. ONE M ORE STUPID QUESTION. 2 parts. 1. whats an easy/ accurate way to mix the gas. 2. the previous owner told me he had to use a LEAD additive in the fuel, is this true? Let me reinforce the fact that i am nautical / marine challenged.


Thanks a GAZILLION
Pete

 

[F_R]

Re: 1956? 12hp, Sea King

Actually, one parts book covers 1951-55 and another covers 1956-57. They cover ALL motors built by Gale Products for those years. outboardbooks.com holds the copyrights and sells the books. They show up on e-bay from time to time. That's where I bought mine.

Just dump a pint of tcw-3 outboard oil into your 6 gallon tank and pump in 3 gallons of regular unleaded gas. (2 pints for 6 gallons) That's called 24:1 mix. NO lead additive!! Back in the "olden" days we used to go out of our way to get unleaded "white marine" gas---now it's everywhere and we use it in our cars.

 

[steelespike]

Re: 1956? 12hp, Sea King

Actually, one parts book covers 1951-55 and another covers 1956-57. They cover ALL motors built by Gale Products for those years. outboardbooks.com holds the copyrights and sells the books. They show up on e-bay from time to time. That's where I bought mine.

Just dump a pint of tcw-3 outboard oil into your 6 gallon tank and pump in 3 gallons of regular unleaded gas. (2 pints for 6 gallons) That's called 24:1 mix. NO lead additive!! Back in the "olden" days we used to go out of our way to get unleaded "white marine" gas---now it's everywhere and we use it in our cars.

Just so your not confused 5.3 ozs to a gallon, 1QT.(32ozs) to a 6 gallon tank.
We've been running 32 ozs for 50 years;close enough.Any TCW3 rated oil.

 

[Paramedpete]

Re: 1956? 12hp, Sea King

That's great. I ordered the pump and carb kit. Hopfully the next post from me will be a picture out on the water. The parts will be here around mar 11th. Thanks for the heads up on the manual, ill look for one there. Again thanks so much for all the info. like i said in the past, yall's knowledge is unsurpassed and ive told all my friends and family how great and helpful this sight is. you guys are my own "Boatmotor geek squad". Hope that didnt offend any one, wasnt my intention.

Thanks a bazillion, and talk to you soon with the results of the tune up.

Pete

 

[Paramedpete]

Re: 1956? 12hp, Sea King

Hey yall, Im back. OK, well i got the thing runnin with a fuel pump and carb kit. had to mess with the points to but, it still runs a little rough, we're getting close.

Just a few ?'s. First how can i tell if a impeller is bad or going bad?

second, when im testing the motor how submerged does it have to be. It seems to be getting pretty hot,splash water sizzle hot. Thats why i thought maybe the impeller was bad. I think I just heard a big oh @#$%^& you did what!!!!, that's where you guys come in. the in/out right above the propeller is the water intake?.........and the port further up, is the exhaust, i think? anyway seems pretty silly im sure. but there is pressure being pushed out the bottom port near the propeller and it seems like there is no water being pushed up to powerhead. If i do need a impeller, where can i find one? or is there a water pump issue?

well there is something to chew on.

Many thanks again.

Pete.

 

[tmcalavy]

Re: 1956? 12hp, Sea King

Ouch...running hot. If you don't see water spraying out of the hole in the leg just below the powerhead it ain't pumping water. Time to replace the impeller. They are available most anywhere that stocks OMC parts. Don't run it until it's pumping again or you'll damage it. Check/clean the water inlet screen and make sure the foot is fully submerged if you're running it in a barrel/tub. Keep the hose handy, once you get it pumping water again and throw it in F it'll drench you real well...that's part of the fun. Post back if you need directions doing the impeller/pump service....ain't hard just takes patience. Have some tasty beverages at hand.

 

[Paramedpete]

Re: 1956? 12hp, Sea King

Roger that, which is the water inlet and which is the exhaust, and why does the port ,about 12 inches down from powerhead ,look like it has carbon around it with about 4 or 5 small 1/4 in holes in it also, is this where the H2o is supose to come out. and when you say "foot" do you mean the small fin like thing above the prop? where is a good place to get the parts i need. I got the carb kit and the fuel pump on this site. did some searching on this site and, will part/kit 18-3377 or 18-3203 evinrude 15-18hp 1953-1965 work for this?

side note. how long should a impeller last, the guy i bought it from said he replaced it last year. bad winterizing i guess.
Thanks a million,
pete

 

[tmcalavy]

Re: 1956? 12hp, Sea King

Those 4-5 holes down from the powerhead should be spitting a spray of water. Either that or you will have one larger outlet about 14-16 inches down from the powerhead that will really throw out a spray. No water means no cooling. The inlet is down on the foot, everything below the cavitation plate...the horizontal plate above the gearcase/pumpkin. Impellers last a good long time, unless someone runs it out of the water...no water for lube and it's toast pretty quick. Your impeller might be good, but the last owner may have not gotten the water tube from the pump connected to the powerhead. Only way to tell is to pull the lower and have a look. Engine Blade and Prop in Milwaukee, WI, and on the web will have an impeller. Don't know if the OMC/Johnson/Evinrude impellers for 15/18 hp outboards will fit yours...might, but might be a little large, too. Best to check with a parts guy like at EB&P...good folks, and good prices. The inlet is down on the foot, either above the gearcase with a rectangular plate/cover or down on the trailing part of the foot, covered with a mesh screen. I keep saying "either" because the basic OMC design varied a little between Gale, Johnson and Evinrude...each a little different, but basically the same.

 

[tmcalavy]

Re: 1956? 12hp, Sea King

Laing's also has the impeller/pump kits:
http://www.laingsoutboards.com/newpa...20and others

 

[Paramedpete]

Re: 1956? 12hp, Sea King

great info, talk to you soon

thanks a bazillion
Pete

 

[Nickalas1986]

Re: 1956? 12hp, Sea King

Hi i am new to iboats but i am looking for info on a few outboards that i can use....but have been sitting for well 28yrs! since 1980 in my uncles basement....so they are 50's motors, one is a 12hp and the other is a 5hp. the 5hp moves freely, but the 12hp is froozen. i would rather the 12hp for the 14' aluminum flat bottom. but i am not sure what to do to un-freeze the motor. any suggestions? i am going to try the 5hp and see if i can get it started and at least get it on the river (Rock River Dixon IL) i will get the serial numbers from them to make sure on the years and to get replacement parts. any info or things to be "careful of" or what ever. Thanks! Nick

 

[F_R]

Re: 1956? 12hp, Sea King

Nick, please start a new thread. Hi-jacking into an existing one is not only rude, it gets us all confused so we don't know what subject were are discussing.

Oh, and BTW, welcome to iboats. You are important and appreciated.

 

[tmcalavy]

Re: 1956? 12hp, Sea King

Hey Nick, welcome and as FR says start a new thread so you'll get the right answers you need. Also, search the forum for "frozen" or "stuck" and you'll get some good ideas on how to maybe resurrect the 12 hp. Wonder how Pete is making out with his 12?

 

[steelespike]

Re: 1956? 12hp, Sea King

Those 4-5 holes down from the powerhead should be spitting a spray of water. Either that or you will have one larger outlet about 14-16 inches down from the powerhead that will really throw out a spray. No water means no cooling. The inlet is down on the foot, everything below the cavitation plate...the horizontal plate above the gearcase/pumpkin. Impellers last a good long time, unless someone runs it out of the water...no water for lube and it's toast pretty quick. Your impeller might be good, but the last owner may have not gotten the water tube from the pump connected to the powerhead. Only way to tell is to pull the lower and have a look. Engine Blade and Prop in Milwaukee, WI, and on the web will have an impeller. Don't know if the OMC/Johnson/Evinrude impellers for 15/18 hp outboards will fit yours...might, but might be a little large, too. Best to check with a parts guy like at EB&P...good folks, and good prices. The inlet is down on the foot, either above the gearcase with a rectangular plate/cover or down on the trailing part of the foot, covered with a mesh screen. I keep saying "either" because the basic OMC design varied a little between Gale, Johnson and Evinrude...each a little different, but basically the same.

If your running in a barrel,barrel should be right up against the mount bracket and filled to the brim.Water should burble strongly out of the relief port you discussed.
Water intake is in the leading edge of the exhaust snout.

 

[Nickalas1986]

Re: 1956? 12hp, Sea King

Sorry about that...but i am not sure what a thread is exactly or how to start one...sorry your help is much appreciated!

thanks Nick

 

[F_R]

Re: 1956? 12hp, Sea King

This is a thread..a question and a bunch of answers. If you go back to the list of threads, you will see a click button at the top of the list to click to start a new thread.

 

[andyman2010]

Re: 1956? 12hp, Sea King

Hello,

I recently purchased a Sea King gg9012a / 55x59d832. From what I can see in this thread its the same motor.

Starts fine in trash can, but does not seem to be pumping water. So I shut down. Im a little confused as to what parts need replacing and was hoping for some guidance. Where should I start trouble shooting this? What model should I reference for parts Johnson? Evinrude?

Many thanks!

Ouch...running hot. If you don't see water spraying out of the hole in the leg just below the powerhead it ain't pumping water. Time to replace the impeller. They are available most anywhere that stocks OMC parts. Don't run it until it's pumping again or you'll damage it. Check/clean the water inlet screen and make sure the foot is fully submerged if you're running it in a barrel/tub. Keep the hose handy, once you get it pumping water again and throw it in F it'll drench you real well...that's part of the fun. Post back if you need directions doing the impeller/pump service....ain't hard just takes patience. Have some tasty beverages at hand.

 

[jcat5150]

Re: 1956? 12hp, Sea King

Not true on the shifter part. My '54 has a full shifter.

 

[seward]

Re: 1956? 12hp, Sea King

I am another newbee, who just got my hands on a gale 12d11, Sea King, 12 hp, 1955 (f-n-r) rather than (f-n only), GG9016A, Montgomery Wards.

As per seller the coils are probably bad. How would i test? and could I buy here? how? what part #?

I also see suggestions for impeller and carb kit. would i be getting in over my head?

This will be a great motor for my 16' sailboat. I have used outboards for the last 30 years but have not done work on them.

Thank you ahead for the sharing of your knowledge and experience.,
Sean