Elgin 3.5 hp year?

[Buccaneer]

Dan, thanks for the reply. I think you’re correct. I found the diagram below last
night before “lights out”. It would make one believe the float pin goes thru it,
but it must work in conjunction with the wire clip on the float needle.
Looks like quite a lash up! ………. no wonder mine has the wrong needle…..
probably out of desperation.

I’m not ready to spend $40 on a kit to get the right float needle, and I have
no idea if my needle seat is original, and most of the kits I see don’t include the seat.
Come to think of it, some of the kits show a rubber seat that goes inside the brass fitting.
I do not have that style.

I have a Ted Williams or two in the shed…… wonder if they have similar carb parts.
Will have to explore that option.

Prepare to be boarded!

• This reply was modified 4 years, 1 month ago by Buccaneer.

[frankr]

1st, that definitely is a Scott-McCulloch. Secondly, the coil spring acts as sort of a counterbalance for the float. If. I ever knew the reason, I’ve forgotten by now. Lastly, does that carb have a pump bladder, probably in the mounting flange? It may be ruptured, if it has one.

[Buccaneer]

Frank, your counterbalance would be as good a theory as any. To me, it’s
just poor engineering, especially when carbs got along fine the previous
forty years with no spring involved.
It does not have a rubber bladder, but I do have an Eska that had a little
tubular, “orange” bladder mounted in the carb, if that’s the type you’re
referring to.
Thanks!

Prepare to be boarded!

[frankr]

Yes, that’s what I was thinking about. Those were fuel pump bladders, and if ruptured, they would flood the engine, just like any other diaphragm.

[Buccaneer]

I dug thru a bunch of lawnmower, etc., carbs, and found no float needles big
enough in diameter, therefore I tweaked on the carb, adjusting both float
tabs so the needle valve barely opens. I appear to have been successful,
but that’s after I broke the old starter rope, and spent another 1/2 hour
fixing that.
I played with that little spring that goes over the float pin, every which way,
and could see no benefit, and only potential problems, so I left it out.

I ran the motor for a half hour, starting and stopping it a few times, and it
seems like a winner. May even run better with a new spark plug and
fresh gas with a leaner mixture. It calls for a 40:1 mixture, but seemed
to run fair on the two year old 16:1 gas I siphoned out of my boat’s tank.
Don’t think I’ll go as lean as 40:1 though.

The spark plug in it was a AC M47, a shorter plug. Of course I don’t
have anything newer around that’s also short. Such is life.

https://youtu.be/4aohESTTlMg

Prepare to be boarded!

[kirkp]

Buc, I put a post in the Leads for Motors section simply because there really isn’t a good place to put notifications for parts. The title of the post is “NOS OMC Johnson Evinrude Gale Outboard Water Pump Rotor 550040”. I saw a listing on ebay for a wobbler impeller and looks like what you were working on. Wanted to bring it to your attention if you still have a need.
Kirk

https://www.ebay.com/itm/Vintage-NOS-OMC-Johnson-Evinrude-Gale-Outboard-Water-Pump-Rotor-550040-/402762092285?_trksid=p2349624.m46890.l49292

• This reply was modified 4 years, 1 month ago by kirkp.

[Buccaneer]

Kirk, thanks. I did message the seller of that rotor to see if he would measure it.
The one in the Elgin is pumping fine, but I measured mine before I installed it,
for future reference. Just curious at this point if the Gale and Elgin rotors are
the same.

Prepare to be boarded!

[Buccaneer]

I took the Elgin for a lake test today for the first time.
It ran good in the test barrel a while back, but of course
gave me fits trying to get it going and stay going today
on the lake.
It seem to be fuel issues. It finally got to a point it would
run for a while then cut out.
I’m wondering if the wrong needle valve I found in the carb,
and the float hinge pin spring I found on my workbench,
that I could not get to function correctly, and left off,
is “haunting me”?
Messed with it on the test barrel when I got home, and finally
the rewind cord pulled out and stayed out.

Out of three motors I took to the lake today two ran some
of the time with problems, and the Scott 7.5 “bail-a-no-more”,
I never started because the fuel line connector spewed gas
all over when the primer bulb was squeezed.
Ever have one of those days when you feel Jinxed?
https://youtu.be/0wH79Y74ogQ

Prepare to be boarded!

[frankr]

I found this, but not much help because the picture is too grainy.

[Buccaneer]

Thanks Frank, I’ll pull the carb apart again tomorrow and take another look at it.
I messed around with that spring but never could make sense of it actually
working, but came to the conclusion I have the wrong needle valve, and
that perhaps somehow the two interact.

It’s a Walbro Carb, model LMG159

Prepare to be boarded!

• This reply was modified 3 years, 10 months ago by Buccaneer.
• This reply was modified 3 years, 10 months ago by Buccaneer.

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