10hp seahorse 1956---worthy project???

Joined
Aug 31, 2002
Messages
12
would love to hear from folks who know this motor---things to look for--expected gas use-and experiences changing from pressurized tank to fuel pump single line ?? hard to do -also after changing impeler- points condenser and both coils- runs great --[in test tank]-but no water pumping-----rechecked manual-took lower unit apart -checked everything-realigned "pin with impeler" put back togeather---also blew air up water exit and seemed to out intake fine--now all back together -no water?????? maybe somehow in reasembly it jumps off the pin on crank??
 

rolmops

Vice Admiral
Joined
Feb 24, 2002
Messages
5,518
Re: 10hp seahorse 1956---worthy project???

Hello.<br />If you can find a pressure tank ,you don't have to bother with changing to pump, which by the way is not very difficult.<br />While you close the housing of your water pump you must turn the drive shaft clockwise so the impeller sits right and does not get pinched while closing the housing.<br />Make sure that when you put the lower unit back on, you put the water pipe that comes down from the engine exactly in the outlet of the pump housing where the grommet is.
 

gsnyder

Seaman
Joined
Jun 23, 2002
Messages
55
Re: 10hp seahorse 1956---worthy project???

I be--I picked up a 1956 Evinrude 10 hp from a boat junkyard a few months back. I did some minor fiddling and started it up in a tank. It's a strong motor--I put it on a 12 foot boat last week, and it just took off on a plane. Seems to be a noisy motor though. Anyway, it's a great piece of work, and a very strong engine. I run mine off a two line pressure tank--I don't know if there's a fuel pump conversion or not to a single line. I haven't heard of one. You might post a request for info on the Antique Outboard Motor website www.aomci.org. As far as the water pumping is concerned, the only thing I might add is did you get the brass water tube reconnected properly to the top of the water pump impeller housing and is it still connected properly to the powerhead?
 
Joined
Aug 31, 2002
Messages
12
Re: 10hp seahorse 1956---worthy project???

thankyou both for the replys-just when i get excited about this little clean motor something else --now the recoil spring has snapped--so maybe soon I will fix this and be back in business-any sugestions on the recoil spring repair?? take care and thanks again--
 

gsnyder

Seaman
Joined
Jun 23, 2002
Messages
55
Re: 10hp seahorse 1956---worthy project???

Ibe--I'm'presuming your motor is a QD-17. I have had mixed luck with starter springs because most of the time when I disassemble the starter pulley assembly the springs flies out onto the floor with great energy. I have two manuals: a Clymer manual for the 1956-1972 Johnson/Evinrude models, which is fairly good, and I ordered a Johnson Service Manual from Ken Cook. Do a Google search and you will find the site. I also got an original 1956 owners manual from them. These manuals have good pictures to go along with the explanation. Back to the spring: It will seem obvious when the starter housing head is removed. Once the center bolt is removed, be careful, because the next step is to lift the pulley from the housing, which will cause the remaining spring to fly clear if not careful. The new spring needs to be greased, the lack of which probably caused the old one to break, or just old age, then coiled into the starter housing counterclockwise (looking down at the assembly). Look to see where your existing spring is attached before removing it completely; this shows you how to re-attach it. Allow yourself some time to do this, unless you are familiar with this type of operation. The manual gives you a good guide.--Back to one of your earlier questions about fuel consumption. These motors are gas eaters, with much of the 24:1 gas-oil mixture going to lubrication and not power. They burn dirty, and are smoky, but better too much than too little. I have a four gallon tank which my motors make short work of, but the joy of having one of these solid old workhorses is worth it. Best of luck on the spring.
 
Joined
Aug 31, 2002
Messages
12
Re: 10hp seahorse 1956---worthy project???

thankyou 7.5---i'm rather green at all this !!! but love to "tinker' woodworker /sculpter by trade and collector it seems of the "odd" or neglected things--and the challenge of getting this old motor back in the real water-I also bought this old boat 14ft alumi v hull jon with honda motor 8hp--with new trailer for 475, motor runs boat is leaking and needs some fixen-what do you think of spray on bed liner with paint?and which of these motors would be better in the salt?I go to carolina coast every year and love the back waters--any feedback on this honda ? what is the green lite?
 
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