50hp hydro electric

[Drowned Rat]

Hi everyone. I've got a 1979 50hp 2 cylinder Johnson. This is a hydro electric model. How do I get the thing out of forward gear? Is there a switch I should look for or does the remote throttle control it? What kind of oil should I be putting in this thing? Also, How do I tell if the water pump is working, there is no tell tale on this model. Thanks for your help.

 

[JRuggiero]

Re: 50hp hydro electric

As for the hydro-electric, there are two types of controls. I have the push button style, mostly 60's models have these. I know the early 70's they went to a single arm design where the electrical contact is made in the control box when you move the throttle forward and back. Your goal is to get 12v to the green wire for neutral, and 12v to both the green and the blue for reverse. These wires pop out of the leg on the port side of the powerhead and run through the harness all the way to the controls. Just find those two wires and check voltage/condition.

 

[Dhadley]

Re: 50hp hydro electric

The motor has to be running or at least turning over to create hydraulic pressure for the shift to work. The hydro electric units were made from 1968 to 1972. The Evinrudes had a push button control and the Johnsons had a single lever type control.<br /><br />Good luck!

 

[Walker]

Re: 50hp hydro electric

I don't think a 1979 model is any kind of electric shift. Anyway, it won't come out of forward until 2 thing happen. You you get 12v to one or both solenoids in the lower unit and you get the driveshaft turning which turns the oil pump which creates hydraulic pressure and takes the motor out of forward gear

 

[Drowned Rat]

Re: 50hp hydro electric

Thanks so much for your help. I will check the wires you speak of. Any idea about the water pump. When running the motor on muffs, there is no water coming out of the relief ports. How do I know if the pump is working? Where does the water exit the motor? Thanks for your help.

 

[Dhadley]

Re: 50hp hydro electric

Before you go looking for something that may not be there, look again at the posts. If you have a 1979 you do not have a hydro-electric shift. If you have a hydro-electric shift you do not have a 1979.<br /><br />Post the model number so we can "see" what you have.

 

[phatmanmike]

Re: 50hp hydro electric

you should have water pouring outa the prop, and you should be able to touch te head without getting burned.....if all else fails, use the manual

 

[Drowned Rat]

Re: 50hp hydro electric

Ok here are the numbers<br /><br />Model 50ES71S<br />Serial E3528326<br /><br />That makes it a '71 model huh?

 

[karrick]

Re: 50hp hydro electric

yes you motor is a 71 model according to the SN. I just finsihed putting my 60hp 3cyl 71 johnson back together. <br />hydroelectric shift problem --<br />I had problems with mine not shifting out of forward. I investigated the switch and found out that the guts of it were destroyed. My switch was lever type that JRuggiero refered to. My two local boat shops could not find a replacement PN. They could order me one but could not tell me a price until I ordered it. So I rigged up a 3way toggle switch and relay to create the logic that is needed to shift. I have the schematic available if anyone wants it. <br />water pump problem --<br /> I had the same concerns when I fired mine up on muffs. I did not get any water out of the two water ports at the base of the powerhead. So...I removed the powerhead and totally dissasembled the lower unit sections to find that those two ports are open to the lower unit. My fear was that there was a restriction in the coolant passages causing the lack of flow. <br /> On the exhaust port going through the lower unit, there was a small slit that looks as if it is to force water to go out the two holes when the lower unit fills up with water when it is in the water.

 

[Drowned Rat]

Re: 50hp hydro electric

Thanks karrick. I plan on tearing into the throttle lever when I get a chance to see if the switch is destroyed. I am interested in those schematics. Can you e-mail them to me? Thanks for your help.<br /><br />jmarr@native-air.com

 

[mrc]

Re: 50hp hydro electric

Easist way I believe is to use a "push/pull/pull" running/anchor light switch.<br /><br />Run the anchor light connection to the neutral solinoid, and the bow light connector to the "reverse" solinoid.<br /><br />Then Pushed all the way in is forward. <br />Pulled out one notch is neutral.<br />Pulled out all the way is reverse.<br /><br />Good luck,<br />Mike

 

[Drowned Rat]

Re: 50hp hydro electric

Great idea mrc3, thanks!<br /><br />the Rat.

 

[Drowned Rat]

Re: 50hp hydro electric

Can someone tell me how to apply 12 volts to either the green wire or the blue or both? Do I jump the pos. terminal of the battery to the wire? And where do I attach the neg. lead? Also where in the system do I run the jumper wire to? Sorry to drag this thread on, I just want to get it right. I'm still waiting on the manual to get here. Thanks for your help.

 

[JRuggiero]

Re: 50hp hydro electric

You do not need to provide a ground to the green or blue wire. Simply run a 12v + lead to the switch, then wire the green wire to the anchor light position (1 click out) and the blue wire to the bow light position (2 clicks out). I did this to troubleshoot mine when it would not shift. In my case, a bad rectifier burned out the neutral solenoid.<br /><br />Testing the solenoids is simple. Take an ohm meter set on the lowest setting. Touch one lead to ground anywhere on the motor, and the other lead first to the green wire running down to the lower unit (disconnected behind powerhead) and then to the blue. Each one should be between 5 to 7 ohms. Most likely not your problem, but takes two minutes to confirm!

 

[Drowned Rat]

Re: 50hp hydro electric

Okay, will do. Thanks for your patience!

 

[even125]

Re: 50hp hydro electric

Karrick, Me too if you have the time, i have a 71 125 evinrude. I could probably work out just a switch arrangement but would fail with the logic solution to make it safe. thanks Even125<br /><br />snorri@australiaonline.net.au

 

[karrick]

Re: 50hp hydro electric

my switch alternative is not very "safe" but it works. A safety circuit to prevent in gear starting could be added.

 

[Drowned Rat]

Re: 50hp hydro electric

Ok. I took the lower unit off and cleaned and lubed the solenoids so the magnets slide in and out good. Replaced the impeller while it was off. I took the throttle housing apart and disconnected the 3 way switch that controls the hydro electric drive. I hooked up the wires to a 3 way nav lights switch like mrc3 said to. Hooked everything back up and it works like a dream. Shifts perfect everytime! Thanks to everyone who helped me get this thing going. Hope you have a great holiday!!<br /><br />Jeff.

 

[mpdonovan]

Re: 50hp hydro electric

" So I rigged up a 3way toggle switch and relay to create the logic that is needed to shift. I have the schematic available if anyone wants it."

Would also like this schematic emailed to me too please.
mpdonovan@designsbyamd.com
Thanks

 

[march]

Re: 50hp hydro electric

" So I rigged up a 3way toggle switch and relay to create the logic that is needed to shift. I have the schematic available if anyone wants it."

Would also like this schematic emailed to me too please.
mpdonovan@designsbyamd.com
Thanks

me too please, if possible
m_hamelin33@hotmail.com

thanks!