Identify a Mystery Evinrude please :)

[domwebhost]

Hi,

I have recently acquired a boat that has an older Evinrude Outboard on it. I have been trying to find out model info ( some mice chewed up some wires and I want to find out where they go...etc...) and I can not locate it. This motor has been painted many times so the sticker is gone (The one by the swivel arm area and transom area). On the Welsh Plug there is a Big M, then under it J2981580 ( I tried to cross reference it and got nothing). The OEM on the Cylinder Head is 317194, The Exhaust Manifold is 313407. These numbers bring up Multiple years (68-73) and multiple models. Other numbers include 382776, 313418, 328781. After cross referencing all those numbers it seems like there is no narrowing it down yet as some fit a 68-71, and others fit a 72-73. The accelerator says "Johnson Hydro Electric Drive on it". I tried to identify it by the bottom half and I could find no diagram that looked like it. This outboard is a 3 cylinder, with a Power Pack Motorola # 6CB2001. Any help in identifying HP and model # for a wiring diagram/manual would be GREATLY appreciated.

Thanks in Advance,

Dom

 

[domwebhost]

Re: Identify a Mystery Evinrude please

Some possibilities that i have found with the OEM numbers are :



0317194
+++++65272S 1972
Assembly: CYLINDER & CRANKCASE
CYLINDER HEAD (SKU: 0317194)
0317194
+++++65273S 1972
Assembly: CYLINDER & CRANKCASE
CYLINDER HEAD (SKU: 0317194)

++++++65ES72S 1972
Assembly: CYLINDER & CRANKCASE
CYLINDER HEAD (SKU: 0317194)

+++++++65ESL72S 1972
Assembly: CYLINDER & CRANKCASE
CYLINDER HEAD (SKU: 0317194)

But I still don't know the subtle differences between these ( or other ) motors..

 

[tashasdaddy]

Re: Identify a Mystery Evinrude please

boils down to this. these are all the 3cylinders of that era.
68-69 55 hp
70-71 60 hp
72 65hp.
1973 has a hydro mechanical shift- system, not hydro-electric.

for reference:
Hydro Electric Shift)
(J. Reeves)

The shifting setup of the lower unit is what's called a "Hydro Electric Shift", which is quite complex consisting of voltage being applied to solenoids in the lower unit which in turn change oil passages via a oil pump that supplies various pressure on a spring loaded shifter dog. The wires leading to the lower unit (at the powerhead) are "Green" and "Blue". The engine must be running or cranking over in order to shift out of forward gear.

You CAN NOT use HI VIS lube in that lower unit. You MUST USE what OMC calls "Premium Blend" lube, commonly called "Type C". (A thinner lube)

In neutral, you need 12v to the "Green" wire.
In reverse, you need 12v to both wires, the "Green" one and the "Blue" one.
In forward, there should be no voltage to either wire. (The spring loaded shifter dog forces the unit into forward gear)

To check the lower unit for proper shifting to make sure you have no trouble there, remove the spark plugs to avoid problems and to allow a higher cranking speed.

This next step eliminates the actual shift switch in case problems may exist there.... Disconnect the blue & green wires at the knife connectors (the rubber insulated boots) leading to the lower unit at the powerhead, then using jumpers, take voltage direct from the starter solenoid to apply voltage to the "Green" wire for neutral, then both wires 'Green" & "Blue" for reverse (Remember the engine must be cranking over in order to shift).
With no voltage applied, the unit should be in forward. No need for a ground jumper... the lower unit's already grounded. You may crank the engine with the key switch or by energizing the starter solenoid with a jumper wire.

 

[HighTrim]

Re: Identify a Mystery Evinrude please

Im pretty sure that is a 72 65hp

65ES72S and 65ES72ESL are Johnson model numbers , so you can forget those. It is one of your first 2 options, and I doubt there are any major differences between them. Use either for a Service Manual. Others will be able to verify this for you.



sorry Tash beat me to it.

 

[domwebhost]

Re: Identify a Mystery Evinrude please

So......Can it be verified by anyone else?

You are saying that it is either:

0317194
+++++65272S 1972

+++++65273S 1972 ?

Are there any visual differences between the 2 that anyone knows of that might help me to narrow it down to 1 or the other?

 

[ezeke]

Re: Identify a Mystery Evinrude please

I believe that the Serial #J2981580 on the welch plug is from 1968 or 1969 and is a for Johnson engine

 

[domwebhost]

Re: Identify a Mystery Evinrude please

Hmmmmm Is there any way to cross reference that #? The motor cover says Evinrude but there is no guarantee that the cover is original? Any other tell tale signs of it being a 68-69 or 72?

 

[HighTrim]

Re: Identify a Mystery Evinrude please

Geesh good point Ezeke, read right over that! Please disregard my previous statement.

Maybe it is a Johnsonstein, or perhaps simply a Johnson with an Evinrude cowl on her.

 

[ezeke]

Re: Identify a Mystery Evinrude please

Dealers cross reference serial numbers through BRP, I just keep a list of ones I know about and that is where yours falls.

F_R keeps a more comprehensive list so maybe he can narrow it down.

 

[domwebhost]

Re: Identify a Mystery Evinrude please

Exhaust Cover OEM # 313407 coincides with these motors @ http://phboat.motorsportdealers.com/pages/parts/viewbybrand/default.aspx
Under Evinrude Motors

60172C 1971

60172E 1971

60173C 1971

60173E 1971

60ES71C 1971

60ES71E 1971

60ESL71C 1971

60ESL71E 1971

55872A 1968

55872R 1968

55872S 1968

55873A 1968

55873R 1968

55873S 1968

55972A 1969

Any thoughts?????

 

[domwebhost]

Re: Identify a Mystery Evinrude please

Throttle Cam Assembly OEM# 382776 comes back to these motors....

Can you see how I am confused?

Different motors and years from 68-72 now And different HP from 55-65



60172C 1971

60172E 1971

60173C 1971

60173E 1971

60ES71C 1971

60ES71E 1971

60ESL71C 1971

60ESL71E 1971

65272S 1972

65273S 1972

65372R 1973

65373R 1973

65ES72S 1972

65ES73R 1973

65ESL72S 1972

 

[domwebhost]

Re: Identify a Mystery Evinrude please

I found a cross reference chart on the internet at:

http://www.sterndrive.info/outboardmotor/cross_reference_chart_before_1979.html

However, I am unable to find anything that coincides with J2981580

 

[domwebhost]

Re: Identify a Mystery Evinrude please

Would including a picture of the lower unit or any other part of the motor help any? (I mean are there vast differences that are on the lower unit..etc. that would make someone say " Ah ha, it's a <insert model here>")?

 

[tashasdaddy]

Re: Identify a Mystery Evinrude please

those are model # reference. serial numbers are not published to the public.

 

[domwebhost]

Re: Identify a Mystery Evinrude please

Any of the diagrams of Lower units that I have found on the internet do NOT look like mine BTW

http://www.sterndrive.info/outboardmotor/help_identifying_lower_units.html

The closest is

(Although on mine there are 3 vertical ports that extend the same distance as the 6 circular ones in the diagram. My lower unit DOES have the little "fin" at the back of the unit and is missing the rectangular port like
2-3-Cyl. loop charge small gearcase 1989-2005

(CLOSEST I COULD FIND)

AS OPPOSED TO

I know these are the wrong years but I don't have a digital camera at the moment so I can;t take a pic of the lower unit and would think that maybe between 68-73 there were only a few varieties...no?

Does this help in narrowing the 68-73 mystery?

 

[tashasdaddy]

Re: Identify a Mystery Evinrude please

the fin on the back is a removeable and could have been left off. when the lower unit was previously dropped. but should be there.

 

[domwebhost]

Re: Identify a Mystery Evinrude please

Hmmm....


The mystery thickens.......

I still don't know what wiring schematic to use for it. I can match up all of the wires except for 2 red ones

 

[F_R]

Re: Identify a Mystery Evinrude please

Since it has a Motorola Amplifier it can only be a 1968-69 55hp or a 1970-71 60hp.

A 55hp has a vacuum switch on the side, with a rubber diaphragm covering it.

A 60hp has an electrical terminal strip with a bunch of screw terminals making the wire connections. It also has a pair of "monkey nutz" epoxy-covered diodes connected to that terminal strip and no vacuum switch.

Other than that there is little difference between a 68-69 and little difference between 1970-71

 

[domwebhost]

Re: Identify a Mystery Evinrude please

My motor does INDEED have an electrical terminal strip with a bunch of screw terminals making the wire connections. It also has the "monkey Nutz" that you speak of.

Great deducing. So a wiring diagram from any of the 60hp 70-71 will work?

The reason(s) that I ask is I am going to need new Spark Plug wires ( damned mice) and I want to make sure to get the right ones.

I have 2 mystery wires ( mice had a heyday in this motor).... On the right side of the motor ( the same side as the terminal bar and the monkey nuts towards the bottom there is a little harness of wires... 2 red and 2 yellow. I can see where the 2 yellow hooked up and have waterproof spliced them but I have NO clue where the 2 red ones hook up. Or if anyone has a wiring diagram that would probably help LOADS. So far all of you guys rock with your information and it is VERY appreciated.

 

[F_R]

Re: Identify a Mystery Evinrude please

Send me your e-mail address in a PM and I'll send you a diagram. It's too big to post and I don't want to reduce it.