Topic: 1951 Gale 12 hp mag and throttle – Antique Outboard Motor Club,Inc

This topic has 17 replies, 5 voices, and was last updated 6 years, 4 months ago by Buccaneer.

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September 4, 2018 at 2:40 am #11066
Buccaneer
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The subject motor has a twist grip throttle on the tiller handle,
but the spark advance on the mag plate is separate, kind of!
I’m not sure why they bothered with a twist grip throttle if
you still have to advance the magneto separately.
There is a lever arm that follows a ramp on the mag plate,
but it does not open the throttle like "normal" setups without
a twist grip, but rather seems to put tension on the cable setup,
making it hard to twist the throttle open further, unless you advance
the mag plate to kind of match where it should be in relation to the
throttle. Very awkward operating.
I find nothing in the Gale service manual about this setup or how to adjust it.
Anyone ever see anything about it?

Anyway, the "Three to make One" Gale 12 project has been barrel tested,
and needs to be put on the boat, and dialed it.
The "rewind" seemed to be in good shape when I put a new rope in it,
but it sure rattles when it’s running. What’s the #1 cause on that?

https://youtu.be/a1H-bB6wnEc

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September 4, 2018 at 2:55 am #82247
bobw
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Frankenstein – IT’S ALIVE!! Well done. Not sure what to say on the throttle/mag advance issue but very cool that you made this work!

Bob

1937 Champion D2C Deluxe Lite Twin
1954 Johnson CD-11
1955 Johnson QD-16
1957 Evinrude Fastwin 18
1958 Johnson QD-19
1958 Johnson FD-12
1959 Johnson QD-20

“Every 20 minute job is only a broken bolt away from a 3-day project.”
"Every time you remove a broken or seized bolt an angel gets his wings."
September 4, 2018 at 12:12 pm #82259
frankr
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Ok, first things first. The theory behind the setup is that you are cruising along at wide open throttle and want to slow down for something (like cross a wake for instance). So you rotate the twist grip. That closes the carburetor butterfly, leaving spark at full advance. Result is a significant reduction of speed. However, in this condition it runs rather rough due to being at full spark advance. So if you want to continue running at slow speed you reach up and reduce the spark advance, which gives you a nice slow idle.

Actually the system has a second purpose: Racing. On a hydro, you would have a dead-man’s throttle that closes the carb if you turn loose.

Having said that, and looking at your picture, I think you have it assembled wrong. Study it and see if it operates as I just described.
I think the cable-operated lever is supposed to be above the spark-operated lever, not below. Check it out and see. It’s been a long time since I’ve looked at one.
September 4, 2018 at 12:39 pm #82260
cajuncook1
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Buc, the 1950 to 1952 14hp Wedge blocks had the same set up as your Gale 12hp.

Evinrude Fastwin models:

1950 Models: 4438-4439

1951, 1952 Models: 4441-4442

Looking for a diagram or instructional sheet as we speak. Maybe someone would have it on the ready for you.

Cajun
September 4, 2018 at 12:41 pm #82261
Buccaneer
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Frank, I’ll check it out today. I put it back together like it was when
I got it, which means nothing after close to 70 years passing!
If the throttle lever was above the top trunion on the linkage,
then the bottom trunion would be doing absolutely nothing, I think.
This was the most "complete" and original set-up between the
three motors I used. Don’t think the "non shift" model even had
a twist grip throttle originally though.
Thanks!

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September 4, 2018 at 12:42 pm #82262
Buccaneer
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Thanks Cajun!
All this thinking about twist grip throttles and mag advances made
me think of a trivia question, which I have absolutely no answer to!
Which outboard manufacture came up with the first fully syncronized
twist grip throttle that advanced the magneto?

quote cajuncook1:

Buc, the 1950 to 1952 14hp Wedge blocks had the same set up as your Gale 12hp.

Evinrude Fastwin models:

1950 Models: 4438-4439

1951, 1952 Models: 4441-4442

Looking for a diagram or instructional sheet as we speak. Maybe someone would have it on the ready for you.

Cajun

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September 4, 2018 at 1:41 pm #82264
cajuncook1
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Buc, I have a 1951 Seaking(Gale) 12hp — model 12D10 with a twist grip that got a few years back. Picked it up in rough shape, but compression was good and got it started. Started to do a cosmetic restore but life got in the way and interest in it fell to way side. Put it in storage. I have pictures of it when I first go it. Sorry there are a lot of cobwebs on it….lol. But there is a picture of the connector to the carburetor from the twist throttle. I don’t know if this will help, but I’ll put it anyway.
September 4, 2018 at 3:06 pm #82267
frankr
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OK, looking at the pictures again, it does look correct. Lever above the lower trunion.
September 4, 2018 at 3:22 pm #82269
frankr
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quote Buccaneer:

Thanks Cajun!
All this thinking about twist grip throttles and mag advances made
me think of a trivia question, which I have absolutely no answer to!
Which outboard manufacture came up with the first fully syncronized
twist grip throttle that advanced the magneto?

I’ll make a guess: 1950 Scott-Atwater 16hp?
September 4, 2018 at 3:30 pm #82270
garry-in-michigan
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Lifetime Member
The first Evinrude to have a fully synchronized twist grip speed control was the 1951 Big Twin. Not counting the electric start early 1930 motors which used a RPM controller in the starter/generator to adjust the timing. I always considered running at slow speeds by retarding the ignition wasteful on fuel . . . 😎
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