Topic: 6039 Speeditwin Broken Ear Syndrome – Antique Outboard Motor Club,Inc

This topic has 10 replies, 4 voices, and was last updated 4 years, 5 months ago by The Boat House.

Viewing 10 posts - 1 through 10 (of 11 total)

1 2 →

Author

Posts
November 14, 2019 at 5:47 pm #187190
Buccaneer
Participant
US Member
My poor man’s Speeditwin needs a new ear on the exhaust housing,
or the other one cut off to match. The best I can do is alumi-braze
one on, or “try” that is. I’ve only had about a 50% “happy” rating
alumi-brazing any thing. Anyone do the same “ear” repair with
alumi-braze, and if so, what were your results? Did you weld the ear
on from the top side, or bottom side?
I just happen to have a scrap of 1/4″ aluminum plate big enough.
Guess if it don’t work out, it can be an “earless” Speeditwin!

Prepare to be boarded!
November 14, 2019 at 8:09 pm #187199
garry-in-michigan
Participant
Lifetime Member
Ted Marston did all my heavy duty welding. He is a real artist in aluminum. I have a 50% success rate with brazing. I do go through a lot of stainless steel brushes. When the posts break out on the old drum muffler Speeditwins, it causes casting damage that is hard to repare.
- This reply was modified 4 years, 5 months ago by garry-in-michigan.
- This reply was modified 4 years, 5 months ago by garry-in-michigan.
November 14, 2019 at 8:16 pm #187200
labrador-guy
Participant
US Member - 2 Years
Buc, have you thought about taking it to a weld shop? My propeller fixing guy here in Michigan specializes in fixing skegs. Those guys with heliarc welders do some amazing stuff.

dale
November 14, 2019 at 8:34 pm #187203
Buccaneer
Participant
US Member
This summer I broke down and took my Cadillac boat to a “professional” with 40 years experience welding
to weld up some stress cracks in the hull. It leaked before I ever got it in the water, lol. I had it upside
down and laying underneath, I could see daylight thru the welds. Not going back to that guy, lol.

Prepare to be boarded!
November 15, 2019 at 10:20 am #187214
The Boat House
Participant
November 15, 2019 at 12:16 pm #187226
Buccaneer
Participant
US Member
Nice job Tubs. Only thing I don’t like about using alumi-brazing rod is that you can
only weld from one side of the piece.

Prepare to be boarded!
November 16, 2019 at 9:44 am #187249
The Boat House
Participant
November 16, 2019 at 11:35 am #187259
Buccaneer
Participant
US Member
Tubs, I’ve done a couple of skegs using alumi-weld and my oxy-propane
torch set up. Not sure if they’d hold up for every day use, but they
survived the barrel test!
The first time I tried putting one on, not thinking, I “vee’d” both sides of the
metal, brazed up the first side, then of course, flipped it over
to braze the other side,……. and then melted the first side, lol.
Now I just make one deep Vee, and dress up the unwelded side with a little JB
weld before painting.

Prepare to be boarded!
November 16, 2019 at 10:59 pm #187322
The Boat House
Participant
November 17, 2019 at 10:18 am #187336
Buccaneer
Participant
US Member
Tubs, I like your ingenious clamping method of holding the new skeg in place for welding!

Prepare to be boarded!
Author

Posts