RE: [omc-boats] RE: omc-boats-digest V1 #586

Hi Dan,
I'm very interested into looking into this conversion for my motor if
required. Would you be able to send me any of the schematics you received to
complete the project? I'm pretty mechanically inclined, but electrical is
definitely not my strong suit :)
Thanks,
Ian

-----Original Message-----
From: owner-omc-boats@... [mailto:owner-omc-boats@...] On
Behalf Of Dan McCormack
Sent: September 23, 2006 11:15 AM
To: omc-boats@...
Subject: Re: [omc-boats] RE: omc-boats-digest V1 #586

Hi Lee...

Just to be clear - what I actually did was utilize the wiring harness and
junction box from a '64 and eliminated the '66 components all of which were
fastened to the powerhead rather than be contained within a junction box.
The '66 voltage regulator was transistorized/solid state and the one I'm
using now is mechanical. The box itself actually contains this regulator/a
starter solenoid and the 4 diodes mounted in heat sinks. What I find more
appealing about this arrangement is that these diodes can be
removed/replaced from the box using a socket - they unscrew from the heat
sinks ! The '66 setup requires that you replace the diodes and heat sinks
as a unit. I did this once this summer (cost was around $175 CDN) and as I
said it didn't last probably because of the transistorized regulator. I
think it was the problem and the local Bombardier dealer told me that if he
could find one the cost would be over $200 CDN. I'm just a "back yard"
mechanic but it seems to me that mounting these first generation electronic
components to the engine block was a bad idea by OMC. The junction box
being mounted inside the boat is not subjected to all that constant engine
heat and vibration and I believe that's why the older set up tends to last.

In any event if others out there are experiencing a similar problem with the

'66 or later charging system I recommend this conversion. It took me about
4 hours to make the change after making some wiring harness repairs (this is

why I needed the wiring diagram). The ammeter is the 20 amp scale.

>From: <lib1@...>
>Reply-To: omc-boats@...
>To: <omc-boats@...>
>Subject: Re: [omc-boats] RE: omc-boats-digest V1 #586
>Date: Sat, 23 Sep 2006 08:35:56 -0600
>
>Hi Dan,
>
>This IS good news! Glad to hear you're back in business. So parts from
>61-65 did the trick?
>
>I haven't seen what's inside, but I'm guessing it's a 4-diode rectifier
>brige and some type of solid-state voltage regulator to keep it around 14
>volts under charging conditions?
>Did they "pot" the electrical components for waterproofing/vibration
>resistance? It probably wouldn't be to difficult to make-up something
>similar.
>
>Just curious, does you V-4 outfit have the -20 - 0 - +20 ammmeter they used

>on the outboards?
>
>Lee
>
>PS Those are some serious running hours! A lot of boaters don't get to
>500 hours in a lifetime!
>
>
>----- Original Message ----- From: "Dan McCormack" <mcmack@...>
>To: <omc-boats@...>
>Sent: Saturday, September 23, 2006 7:02 AM
>Subject: Re: [omc-boats] RE: omc-boats-digest V1 #586
>
>
>>Hi Lee...
>>
>>Thanks for this however one of the other site members (Greg) did send me
>>a scan for a '64 on Wednesday night. I went ahead and using it as a guide

>>I pieced together what I had on hand and incredibly it works ! I wish I
>>had gone this route earlier in the summer and saved myself the expense of
>>using NOS parts for the '66 system - they lasted less than 10 running
>>hours. I use this boat/engine for my cottage maintenance business and
>>rack up a lot of running time in a hurry (about 500 hours between May and
>>November). Thanks again for your response and willingness to help. This
>>is a great site for those of us who appreciate the old OMCs. I've been a
>>longtime convert to these engines - my dad was a Merc dealer for 25 years
>>so I grew up around all this stuff.
>>
>>Regards
>>
>>Dan McCormack
>>
>>
>>>From: <lib1@...>
>>>Reply-To: omc-boats@...
>>>To: <omc-boats@...>
>>>Subject: Re: [omc-boats] RE: omc-boats-digest V1 #586
>>>Date: Fri, 22 Sep 2006 17:52:34 -0600
>>>
>>>Hi Dan,
>>>
>>>I might have some time this weekend to dig for a EJ V4 alternator
>>>regulator 61-65 schematic, if you still need it?
>>>
>>>Lee
>>>
>>>----- Original Message ----- From: "Dan McCormack" <mcmack@...>
>>>To: <omc-boats@...>
>>>Sent: Tuesday, September 19, 2006 6:20 PM
>>>Subject: RE: [omc-boats] RE: omc-boats-digest V1 #586
>>>
>>>
>>>>Hi Greg...
>>>>
>>>>Thanks for taking the trouble to do that.
>>>>
>>>>Regards,
>>>>
>>>>Dan
>>>>
>>>>
>>>>>From: Greg Van Vliet <gvanvliet@...>
>>>>>Reply-To: omc-boats@...
>>>>>To: "'omc-boats@...'" <omc-boats@...>
>>>>>Subject: RE: [omc-boats] RE: omc-boats-digest V1 #586
>>>>>Date: Tue, 19 Sep 2006 13:13:36 -0700
>>>>>
>>>>>Dan,
>>>>>
>>>>>I have a 1964 90hp Johnson and I have the Seloc manual for it with a
>>>>>wiring
>>>>>schematic. I'll try scanning it and sending it to you directly
>>>>>tonight.
>>>>> My electrical junction box is in good condtion and has the color
>>>>>wiring
>>>>>diagram on the back of the cover intact. I'll try taking a photo of
>>>>>the
>>>>>wiring and the diagram and send those also. Right now my motor and
>>>>>junction box are mounted on a homemade motor stand in my garage waiting

>>>>>to
>>>>>be brought back to life.
>>>>>
>>>>>Regards,
>>>>>Greg
>>>>>
>>>>>-----Original Message-----
>>>>>From: Dan McCormack [SMTP:mcmack@...]
>>>>>Sent: Monday, September 18, 2006 6:51 PM
>>>>>To: omc-boats@...
>>>>>Subject: Re: [omc-boats] RE: omc-boats-digest V1 #586
>>>>>
>>>>>Thanks for the response Lee. The '68 schematic does not help me but if

>>>>>you
>>>>>happen to have a '64 schematic ie. 1964 90 hp. electric shift w/20 amp
>>>>>alternator this would be a big help.
>>>>>Specificallly I need to see how the 4 diodes located in the junction
>>>>>box
>>>>>are
>>>>>wired. The wiring harness that I'm working with was cut up when
>>>>>removed
>>>>>from the original box and I can't be sure at this point which way to
>>>>>connect
>>>>>the diodes back up as the little connectors which only fit one way are
>>>>>missing. I don't want to wire it backwards and end up blowing these
>>>>>diodes
>>>>>as well ! If you do happen to have this schematic and don't want to tie

>>>>>up
>>>>>the digest site, please forward direct to me at: mcmack@... .
>>>>>
>>>>>Thanks again
>>>>>Dan
>>>>>-----
>>>>>To get off this list send mail to omc-boats-unsubscribe@...
>>>>
>>>>_________________________________________________________________
>>>>Don't waste time standing in line-try shopping online. Visit Sympatico /

>>>>MSN Shopping today! http://shopping.sympatico.msn.ca
>>>>
>>>>-----
>>>>To get off this list send mail to omc-boats-unsubscribe@...
>>>>
>>>
>>>-----
>>>To get off this list send mail to omc-boats-unsubscribe@...
>>
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Received on Monday, 25 September 2006