I Got Me a Mercury !!!

tpenfield

Moderator
Staff member
Joined
Jul 18, 2011
Messages
18,326
Ted, for $500 you can buy a running early 80's 9.8
I know . . . exactly. I may try a capacitor, if I can find one with a high enough voltage rating; else it is back to the magneto ignition that I had on the 1969 model.

I can see why Mercury had this ignition for only 2 years. . . :rolleyes:
 

tpenfield

Moderator
Staff member
Joined
Jul 18, 2011
Messages
18,326
@Scott Danforth Thank you for the link . . . I'm getting to the point of 'had enough fun' with this motor. Something is very intermittent, more 'off' than 'on'.

I was able to get a decent spark on the plugs this morning, so I put the motor in the test tank and tried to start it . . . Not much luck . . . I got a few momentary burst (< 1 second) but the engine would not stay running.

I would like to get this thing running in case the Evinrude has issues at some point.
 

tpenfield

Moderator
Staff member
Joined
Jul 18, 2011
Messages
18,326
The Admiral wants to go to the beach (avec moi) for a few cocktails this afternoon.

So, I spent a little bit of time digging into the phase-maker to Magneto ignition swap. At the speed of an Indy Pit Crew, I took off the Phasemaker stuff and put on the Magneto Ignition (from my 1969 motor)

Here is a bunch of the stuff: 1969 powerhead, 1969 flywheel, 1969 magneto stator . . . 1972 Blue Label engine cover.
IMG_8293.JPG
.
I'm thinking this will be a blue label motor with a red label ignition, making it a purple label motor :ROFLMAO:
PhaseMaker out . . .
IMG_8296.JPG
.
Magneto stator on . . .
IMG_8297.JPG
.
Supposedly, you need to also swap out the top bearing carrier plate from the older motor. But . . . the part number is the same on the 1969 as the 1972. I checked Mercury's website part list and sure enough, they are the same (1132-2400A1)
1969 . . .
IMG_8294.JPG
.
1972 . .
IMG_8295.JPG
.
Anyway, I may have this motor back together by nightfall . . . we shall see.

I may also start a new thread just on the swap, as there does not seem to be a complete thread on such.

I bought the 1972 motor for $175 and it had been listed on FB Mtk Place for quite a few months. I think I now know why . . . :rolleyes:
 
Last edited:

tpenfield

Moderator
Staff member
Joined
Jul 18, 2011
Messages
18,326
OK - after beach beers and some dinner, I finished off the conversion of the phase maker to magneto ignition. Here are a few photos . . .
IMG_8304.JPG
.
IMG_8302.JPG
.
The previous version mounting holes for the spark plug wires are still there, but unused. I was able to screw into the holes to secure the wires.
.
IMG_8298.JPG
.
Same for the other side. Fortunately I saved everything from my 1969 motor.
.
The shut-off switch on the 1969 and earlier Merc's is on the front panel, and the 1972+ models have it on the starboard side. Fortunately, the wiring was just long enough to reach the new location. The magneto ignition uses a switch ground to shut off the engine, the phase maker uses an open circuit to shut the engine off. My DIY switch is a simple toggle switch, so not really safety compliant, but I can put a tether on the toggle to shut it off in a MOB situation.
.
IMG_8300.JPG
.
Ground connection
.
IMG_8303.JPG
.
I got the flywheel and pull-start assembly installed. I forgot to swap to the old style plugs, so the engine wanted to run, but was struggling. I replaced the 'CDI' style plugs with traditional plugs and the motor starter right up! :D
.
View attachment IMG_8306.MOV
.
I'll be running it a bit to make sure it is solid.
IMG_8307.JPG
.
 
Last edited:
Top