Re: [OMC-Boats] Wiring puzzle.... We have Liftoff!!

Thanks Lee,

Ya, both ends were chopped.  No plug at all.

I've just been out checking my instrument setup to very that I have the wiring correct.  Seems to be but am still tracing it back.  Will keep y'all posted.  ;-)

-Bill
Dallas, TX
1970 Evinrude Explorer - 155 Buick V6 - OMC Sterndrive
http://www.photobucket.com/evinrude_explorer

--- On Mon, 10/5/09, Lee K. Shuster (lib1) <lib1@...> wrote:

From: Lee K. Shuster (lib1) <lib1@...>
Subject: Re: [OMC-Boats] Wiring puzzle.... We have Liftoff!!
To: "Evinrude & Johnson Boats of the 1960's and 70's" <omc-boats@...mate.com>
Date: Monday, October 5, 2009, 4:06 PM

Prop, Power, & Parts Specialists
3526 S West Temple, S SL, UT 84115
801-281-8288
Ask for Scott ----- Original Message ----- From: BLDFW To: Evinrude & Johnson Boats of the 1960's and 70's Sent: Sunday, October 04, 2009 4:44 PM Subject: Re: [OMC-Boats] Wiring puzzle.... We have Liftoff!!

The good news is that I now have charging!!  It's a satisfying feeling to finally see the voltage gauge now registering 13-14v depending on RPMs.  That's a relief!

I spent late yesterday researching and today rerunning the wires to their proper locations.  It wasn't really all that difficult.  If I had to guess, based upon looking at all the different wiring diagrams I browsed through to be sure I had the right one, the previous person must have been operating off of a later version diagram.  They seemed to have it down right for that.  I tend to think they never got to the point of running the engine long enough to determine it's foibles. 

Fortunately they did not mess with the yellow connector but the black one is no longer present and the wires from the harness are probably only about 3" long.  Currently it has corn nuts making the connections.  I'll have to investigate a replacement.

The remaining challenge relates to my temp and oil pressure gauges. The temp gauge doesn't seem to be registering any temp.  It's a new gauge sending unit and when I disconnect it at the unit, I can see the gauge flicker but it doesn't want to come up off the lowest almost non temp setting.  The oil pressure gauge, on the other hand, pegs at 80lbs.  if the engine stalls, it drops to zero in an instant.  They both appear to be hooked up properly at the engine so I'll have to investigate my trusty wiring efforts behind the dash.  Likely something is not right there.

So the good news is, the problem is 3/4 solved!!  I'm sure glad of that.  Maybe I can still get her out before November! 

Thanks for the good words from the group! 

-Bill
Dallas, TX
1970 Evinrude Explorer - 155 Buick V6 - OMC Sterndrive
http://www.photobucket.com/evinrude_explorer

--- On Sat, 10/3/09, Lee Shuster <lks@...> wrote:

From: Lee Shuster <lks@...>
Subject: Re: [OMC-Boats] Wiring puzzle....
To: "Evinrude & Johnson Boats of the 1960's and 70's" <omc-boats@...>
Date: Saturday, October 3, 2009, 9:20 PM

Check out the attached pic.  Anyone care to hazzard a guess as to what is wrong with this picture??  It pays to have a good wiring diagram (and a good mind......well....maybe).  The problem appears to have been staring me in the face all along....but I wasn't quite "ready" to experience it......yet.  Jeesh!

First off.....the boat was repowered at some point with an earlier vintage engine.  The wiring harness that came with the engine does not match the boat's main harness leading to the front.  Now it would have been nice if they had replaced the engine harness with the original one.  It might have gone right back together without a sweat but nooooo.  Oh well, no accounting for amateurs (uh....myself included). 

I can see several jury rigged spots already.  The green 8g wire in the pic is supposed to feed the tilt solenoids 5 inches away but nope, it ends right there.  Rather they ran the red wire direct from the starter where, coincidentally by design, the other end of the green wire originates too.   Ain't ignorance bliss.

The brown 8g wire also goes nowhere....well guess what!!....that is the feed directly from the alternator so no wonder why it is not charging the battery!  It had no where to go too!  JEESH!  I'll have to match it now with the correct wire in the boat harness to get it to the dash where it's supposed to go.

And Finally, the black 8g wire also goes nowhere.  That's a ground wire.  The two black wires attached via the screw to the right which holds the block down are supposed to be attached to the black ground wire. 

Once I get all that figured out and double check the dash stuff, I'll go back and check the alternator again.  Ain't it just grand....or is that just "another grand"? 

More later.

-Bill
Dallas, TX
1970 Evinrude Explorer - 155 Buick V6 - OMC Sterndrive
http://www.photobucket.com/evinrude_explorer

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Received on Monday, 5 October 2009