sea king 5hp. shaft lenth

popsmazz1

Petty Officer 1st Class
Joined
Oct 13, 2006
Messages
276
I bought this old sea king, guy said was a long shaft, well it"s not, but it measures 18" to the cavitation plate, model 35gg-9015a, isn"t this odd, most short shafts are 15".
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: sea king 5hp. shaft lenth

That is probably a "long" shaft, meant for a 20" transom. Is the height adjustable?
 

F_R

Supreme Mariner
Joined
Jul 7, 2006
Messages
28,226
Re: sea king 5hp. shaft lenth

It is a short shaft. Those motors were made for wooden boats with a keel. They are designed for the cavitation plate to be somewhat below the boat bottom. 18" is way too high to be a long shaft, which is OVER 20" for the same reason.

EDIT: That 35GG-9015A is a 1953, Gale model 5D10 with a neutral clutch. There are still lots of them around. I don't think they ever made any long shafts. I certainly have never seen any, and they don't appear in the parts book.
 

popsmazz1

Petty Officer 1st Class
Joined
Oct 13, 2006
Messages
276
Re: sea king 5hp. shaft lenth

that"s why, I was wondering why it 18", also has a kind of weird carb. on it, can you guys give me any info on it?
 

F_R

Supreme Mariner
Joined
Jul 7, 2006
Messages
28,226
Re: sea king 5hp. shaft lenth

Motors in those days were designed to run on wooden boats with a keel and the cavitation plate ran well below the surface. Your length is fine----SHORT SHAFT!!!

Sure, I can tell you just about anything you would want to know about it. I was a full time dealer mechanic for a Gale dealer when it was new. And your question is----??????

Fuel mix is 1/2 pint per gallon (16:1)
Lower unit takes 90 weight outboard gear oil

Magneto is typical OMC Universal Magneto, used on a bazillion motors. ALL OMC coils of those years are shot (cracked) unless they have already been replaced. You are wasting your time if you don't look at them first (after a compression check). New coils available right here at iboats.

Lower unit is a modified Johnson TN models (different drive shaft)

Just about everything else is Gale, although Evinrude had a similar powerhead and carburetor. You won't see many Evinrude versions, but a ton of Gale versions.

Water pump impeller is NLA, but a 3hp/5.5hp/6hp/7.5hp Johnson/Evinrude impeller will work by enlarging the center hole.

DO NOT, do not, do not, remove the side covers off the cylinder block. They are extremely difficult to reseal. Original service manuals said to return it to the factory for resealing (The factory is gone).
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: sea king 5hp. shaft lenth

Okay, thanks, F_R. That explains the 18" length.

Do you suppose that it would work on a modern, 20" transom, particularly if it was on a bracket?
 

F_R

Supreme Mariner
Joined
Jul 7, 2006
Messages
28,226
Re: sea king 5hp. shaft lenth

Well, maybe on a bracket. Or, possibly as an auxillary kicker beside a main engine because of the deadrise. Otherwise, no.
 

popsmazz1

Petty Officer 1st Class
Joined
Oct 13, 2006
Messages
276
Re: sea king 5hp. shaft lenth

another ? am I supposed to hold down the primer on the carb or pump it? anyway I epoxied the small cracks in the coils, have good spark after I cleaned and reset the points, it started on the 3rd pull, runs nice and smooth, water pump is pumping good, runs nice and cool. not bad for a 50.00 motor thats been sitting for about 20yrs. if I decide to keep it how does the leg come apart to replace the impeller? my book only goes back to 1955.
 

F_R

Supreme Mariner
Joined
Jul 7, 2006
Messages
28,226
Re: sea king 5hp. shaft lenth

You hold it down till it slops over, then release it and start it up.

#1 Drain the gear oil or you will dump it on your shoes!! #2 Remove the cable clamp at the shift lever. #3 Remove the 4 bolts holding the gearcase on. #4 Drop the gearcase down and away. #5 Drop the 1/4" plate that was between the gearcase and leg. The water pump and drive shaft, and cable will come with it. The cable feeds back up through a tube to re-assemble it. You will probably need some new gaskets, or make them.

Warning--if the cable is frayed at the top end, don't pull it down through the tube. You probably won't be able to get it back together. A different procedure is required if it is frayed.
 
Top