Outdrive Wiring Problem

[MercMonster]

I am in the process of getting a manual, but in the interim, does someone know if these wires are supposed to be grounded? They are coming from the outdrive on a lead of two wires. As shown in this pic, they are both grounded. With a slip of the hand, they just fell apart. I have the wire to run back from where the corroded part of the wire stops. Just need to know if they are both supposed to go to the ground nut there. Looks like someone before me did a hack job. Just wanting to get them run correctly. On the boat in my sig. Please let me know if more info is needed for ID. Thanks.

 

[MercMonster]

Re: Outdrive Wiring Problem

Also have this wire just laying there. It is a beige wire that has disconnected from that general area. Any ideas if its ground or not?

Picture 2

 

[MercMonster]

Re: Outdrive Wiring Problem

And I think this is the last wire hanging back there. It is a brown wire coming out of the main wiring harness at the back of the engine. Last one promise

Picture 3

 

[Coors]

Re: Outdrive Wiring Problem

Trim sender? Where they go on the outdrive?

 

[Haut Medoc]

Re: Outdrive Wiring Problem

Does this thing run & shift?....
That brown wire in #2 looks like it belongs to the shift interrupt switch.....
The brown wire in #3 looks like it belongs to the coil.....
Those wires in #1 are most likely the trim limit switch.....
What is that toggle switch in pic #1?........​

 

[MercMonster]

Re: Outdrive Wiring Problem

Trim sender? Where they go on the outdrive?

I didn't follow them any further than where they go thru the transom into the outdrive unit.

Does this thing run & shift?....

It does turn over. Just finished cleaning out the fuel tank which had three year old gas in it. I'm wanting everything connected so I don't blow something

That brown wire in #2 looks like it belongs to the shift interrupt switch.....

Is the shift interrupt switch around the wire in the picture? The wire comes into the picture running over the starter solenoid. I'll look that one up and try to find it.

The brown wire in #3 looks like it belongs to the coil.....

I'll double check that one too

Those wires in #1 are most likely the trim limit switch.....

Are they both supposed to be grounded? Getting their power from another wire I can't see?

What is that toggle switch in pic #1?........

Lifts the outdrive. Found that out by mistake Thanks for the suggestions! Gives me something to think about til the manual arrives.

 

[Haut Medoc]

Re: Outdrive Wiring Problem

I guess if you could tell us where the connected ends come from, it would be easier to tell ya where they go.....
Will the trim pump stop when you are in the full 'up' position?....
I'm guessing not......
If neither are connected, they don't need to be grounded......
You are correct when you said they butchered it up!.......
The toggle switch is a nice touch, though!......​

 

[MercMonster]

Re: Outdrive Wiring Problem

Good guess! - The trim pump will not stop as long as the toggle switch is in the up position. You have to stop it manually by switching the toggle to off. My wondering. How do I tilt it back down

Here's my Trim Setup on the console, but I see nothing for tilt:

Up

Up
----
Out

In

If neither are connected, they don't need to be grounded

One of them was grounded when it was brought home. There was a cut in that line and the other wire was wrapped around it. I was being nosey in that area and they just fell apart. Should I go ahead and start where the wire is in decent condition and add some new wire and then ground them at that post?

I'll try to find out where those wires lead to in the outdrive

 

[Haut Medoc]

Re: Outdrive Wiring Problem

Good guess! - The trim pump will not stop as long as the toggle switch is in the up position. You have to stop it manually by switching the toggle to off. My wondering. How do I tilt it back down

Push the 'in' button, hopefully it will work......​

Here's my Trim Setup on the console, but I see nothing for tilt:

Up

Up
----
Out

In

The up won't work if that toggle switch does.......​

One of them was grounded when it was brought home. There was a cut in that line and the other wire was wrapped around it. I was being nosey in that area and they just fell apart. Should I go ahead and start where the wire is in decent condition and add some new wire and then ground them at that post?

Neither should be grounded if I remember correctly, it is the power feed to the trim pump.....
It cuts the power when the drive is in the tilt position....​

I'll try to find out where those wires lead to in the outdrive

Don't waste your time on that!

They lead to a switch that is tucked up in the transom shield.....
It is activated when the bell housing opens it or closes it....Ifergit....
With the drive in the full up position what is the Ohms reading on the DVM.....
If you don't have one, you desparately need one.....​

 

[MercMonster]

Re: Outdrive Wiring Problem

Sorry for being out so long. I was trying to get a spark (or some gas) out of the engine with no luck. I get gas to the carb, but not down the throat. This is really becoming a serious project I do need to get the volt meter. May pick one up tomorrow if I can find the time. I did find that the In on the console is what lowers the tilt with the key turned on. I guess that's right The Up and Out I get nothing from with the key turned on.

The brown wire in #3 looks like it belongs to the coil

No way to reach, unless its just the ground, but the wires coming off the coil (which is at the front end of the engine) are actually the same color as the wire in Picture #2.

I do have the horn that's not working. Could one of those wires be the ground for that?

 

[MercMonster]

Re: Outdrive Wiring Problem

I've got a friend helping me w/ the boat today. We've tracked down the loose beige wire and the brown wire as coming from the coil. Does anyone know where these should be connected? I'm getting a serious voltage drop at the positive terminal of the coil when the engine is turning over and no spark whatsoever. Hoping that attaching these wires to their appropriate places will get the coil sending sparks my way.

 

[MercMonster]

Re: Outdrive Wiring Problem

Also found out today that the block is showing GM 82, if that helps any.

 

[Don S]

Re: Outdrive Wiring Problem

I forgot I had this. Maybe it will help. I have all my book packed for moving.

http://s123.photobucket.com/albums/o291/DonSind/?action=view&current=165WiringDiagram.png

 

[MercMonster]

Re: Outdrive Wiring Problem

Thanks immensely for the diagram, Don. Helped out in finding where those wires and others ran to. I was up 'til 1:00 in the morning learning where everything was located, by wires alone. Quite fun, I must say, learning more about the boat. The no spark issue was related to there being corrosion on the points, and thus no ground. Cleaned that corrosion off the points and saw the most beautiful blue spark I've ever seen Will hopefully be changing out the cap, rotor etc. later this afternoon. My friend is coming back over later and we're going to try to give her a go again. Thanks again for the wiring diagram!

 

[Don S]

Re: Outdrive Wiring Problem

Be sure to replace those points AND Condenser, cleaning them like that causes them to burn up very quickly. Cleaning is a good way to determine if new points will cure a no spark condition, but not as a final repair.