How the wires on tilt/trim run on 70 horsepower Johnson outboard?

[Big Bubba]

Hello to everyone,
I am getting ready to bring my pontoon boat home this Friday, 10 April, to install my new to me power tilt and trim unit that was a great deal off of Ebay that I couldn't refuse so I bought it. Anyway, all you that have a 70 horsepower Johnson or Evinrude with the power tilt and trim will you send me pictures of how your wires run on the motor? Basically, I have the relay box that mounts on the mounting bracket behind the air box or in front of the flywheel area and will be running my to red wires to the wiring block on the side of the motor and the rest of course plug into other plug in connections going from the motor to the trim and to the trim switch mounted on the belly pan and to the trim switch up front inside the pontoon boat. Please send pictures to this thread or to my P.M. or personal email at nicholelynn12@yahoo.com. Thanks again, Bob

 

[Big Bubba]

Re: How the wires on tilt/trim run on 70 horsepower Johnson outboard?

Sorry but I forgot to include the model# of my engine. It is J70ELCTE and I bought a mounting bracket #26 on the BRP website under the intake manifold which is part# 329341 mounting bracket. Thanks again for your help a picture of how the tilt/trim wires are ran on that motor would help me out tremendously. Thanks, Bob

 

[Big Bubba]

Re: How the wires on tilt/trim run on 70 horsepower Johnson outboard?

...bump..

 

[Big Bubba]

Re: How the wires on tilt/trim run on 70 horsepower Johnson outboard?

bump

 

[Big Bubba]

Re: How the wires on tilt/trim run on 70 horsepower Johnson outboard?

...bump...

 

[Big Bubba]

Re: How the wires on tilt/trim run on 70 horsepower Johnson outboard?

Can somebody answer my question?

 

[bob johnson]

Re: How the wires on tilt/trim run on 70 horsepower Johnson outboard?

I have the same motor and need to figure mine as well..I have the junction box and I can see it has been gerry rigged. the three trim up and down wires were cut before the pigtail, but were jumpered back!!! then there is a set of black and a white that go to a connector, that think may be to the sending unit. another two go to the trim motor and a set of five( including the green, bule and red) which go to a larger connector which goes to the control.

they have a red wire put in after the fact to pick up power....

I wish I knew which one should have been the power.

there are two large green wires that come directly from the relay connectors( ie does not feed into the junction block) that are cut and I dont know what they go to....my seloc manual has no green wires coming out of this block

actually i might just try and buy a used complete junction block...


good luck bubba

bob

 

[bob johnson]

Re: How the wires on tilt/trim run on 70 horsepower Johnson outboard?

bubba, I can copy the wiring schemtic and fax it to you, if youd like.

looking back over the diagram...I think i figured it out...they labeled the color of a few wires that didnt quite match mine, but it is close...

the power lead is still up in the air , because it is homemade

let me know...bob

 

[ezeke]

Re: How the wires on tilt/trim run on 70 horsepower Johnson outboard?

If you could display a picture of the inside of your relay box, I could display the correct wiring. Do you have a two wire trim motor?

 

[Big Bubba]

Re: How the wires on tilt/trim run on 70 horsepower Johnson outboard?

Ezeke,
I have the 2 wires, blue and the green that run to the tilt/trim electric motor.

 

[ezeke]

Re: How the wires on tilt/trim run on 70 horsepower Johnson outboard?

Please click the thumbnail.

 

[bob johnson]

Re: How the wires on tilt/trim run on 70 horsepower Johnson outboard?

hey ezeke...what are they calling a SENDING UNIT??

the trim guage?

also my blue and green wires that go to the hydraulic pump, as alsmost the exact same color!!!! it is very hard to tell the difference between them!!!

the wiring diagram you listed is actually printed under the cover of the junction box!!!!

my motor didnt come with that cover, but i picked up a used one for free at the mechanics shop...it shows the same diagram almost.

if the OP( big bubba) has his junction block he might be able to look under it for which wires go where!

they are different before or after 1981...they uised different wires and a selniod before 1981 and the relays after

bob

 

[ezeke]

Re: How the wires on tilt/trim run on 70 horsepower Johnson outboard?

The sending unit would be mounted on one transom bracket and the two wires will run through to the trim gauge.

The relays reverse polarity on the blue and green wires depending on which way the switch at the helm is depressed.

When you get them hooked up, green is positive when tilting or trimming up. Blue is positive when tilting or trimming down.

The wiring before 1981 was for the three wire trim motor. It used one solenoid for raising the motor because that had the greater power drain. In those three wire systems, lowering the motor was done with power straight from the switch.

 

[bob johnson]

Re: How the wires on tilt/trim run on 70 horsepower Johnson outboard?

so is the sending unit is also called the trim sensor???

the guy who sold me my motor(1988 70 HP) told me the wires for the tilt trim unit were three...blue( for sky) for going up
and green ( grass) for going down..there is also a red wire with a white stripe coming from the controls box...after the junction box there are only the blue and green wires.

that seems to be the opposite of what you listed...

I have powered my tnt unit but did so with just the two wires coming from the hydraulic motor ( blue and green) touching the pos and neg battery terminals

one way it went up, the other it went down...didnt pay attention to which was which when I did it..

now its all in pieces!!

bob

 

[ezeke]

Re: How the wires on tilt/trim run on 70 horsepower Johnson outboard?

First, the five wires that you see on the left side of the earlier diagram are for the PT&T harness. The red/white wire feeds power to the switch at the helm and the switch as you can see is wired with green/white at the top for up and the blue/white at the bottom for down. The switch controls the relays, which in turn control the polarity and power going to the PT&T motor.

It does not matter to me which way you wire it, but it is less confusing for the operator if pushing the switch up moves the motor up and pushing the switch down moves the motor down.

Again, you can call the trim sender a trim sensor or whatever, it is actually a variable resistance unit if that helps. The function is to allow you to see the position of the motor in relationship to the boat and water while trimming the motor.

 

[bob johnson]

Re: How the wires on tilt/trim run on 70 horsepower Johnson outboard?

ok so the trim "sensor " isnt something seperate..it is the "sending" unit.


I recognize the diagram the seloc manual has the same one...funny the factory manual for Evinrude from OMC for a 1989 60-70 HP out board....does not have a wiring diagram.

on the Power TNT contents page is says wiring diagram is on page 10-39, but 10-39 is a blank page with lines for notes!!!!! ha ha...dummies

I havent mounted my motor yet, but I would certainly want it to work like you suggest...button up , for trim up button down for trim down.

bob

 

[Big Bubba]

Re: How the wires on tilt/trim run on 70 horsepower Johnson outboard?

Everyone,
Good evening to you. I am going to work on my pontoon boat tomorrow in fact and am going to install the power tilt and trim on her. I think everything will go good for me as long as I don't burn the outboard motor up laugh out loud. Another question for you is I am going to install the small 2 red wires with terminal ends to the terminal block on the side of the outboard motor. Is that whole terminal strip "hot" meaning power is going to the whole terminal strip?

 

[ezeke]

Re: How the wires on tilt/trim run on 70 horsepower Johnson outboard?

The only red wires connected to the terminal block are the red output wire from the rectifier and the red charging wire leading from that to the large post on the battery side of the starter solenoid.

They are on the same post and do not interconnect with anything else from the terminal block.

 

[Big Bubba]

Re: How the wires on tilt/trim run on 70 horsepower Johnson outboard?

No, what I am trying to say is I have 2 red small wires that have round terminal ends coming off the tilt/trim relay box that I believe are the power wires becuase I hooked those 2 wires up to the battery and the small ground short wire and I was running the tilt/trim system in and out to make sure it works so I was wondering if I could hook connect those 2 red wires to any open unused spot on the terminal block on the side of the outboard motor? Thanks again, Bob

 

[bob johnson]

Re: How the wires on tilt/trim run on 70 horsepower Johnson outboard?

ok bb, if you go back and look at post number 11 the diagram there is the box, there are only 6 wires coming out and going to the motor"side"

((although my junction box is laid out differently inside than the diagram even if the leads end up going the same places)

one is red..it goes to a power sourse, which usualy is the starter selinoid I guess. the others are:

black( mine mounts under the box around one of the mounting bolts from the box to the block)

blue :goes to the trim motor

green: goes to the trim motor

the last two wires go to the "SENDING UNIT" which is also called the trim sensor...whcih you may not have, because you bought just the TNT for a motor that didnt have one before

the diagram says both those wires are black....

but on my motor 1988..one is black the other is tan

but my sensor is Broken..and I wont use it.

the small terminal in the box that has power to it has a left and a right side with a solid metal strip covering both sides...

several red wires run from them....one is red with a white stripe...but that goes back to the control box

the only one coming out to the motor side is the power supply

good luck

your unit does have the two relays correct???

before 1981 they used a selinoid( the manual says)

bob