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Aussie Alpha Carby

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kevin lang
Member
Username: klanger

Post Number: 12
Registered: 03-2012


Posted on Tuesday, July 10, 2012 - 08:19 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

What I have is an 3/4" ALpha carby which is a copy of the Schebler Model D.
As you can see by the photos, its had a bit of knock, and the air intake is bent about. Looking for advice on how to straighen it or am I better of leaving as is?


Thanks
Kev

Secondly I have seen on some carbies a threaded flange plate to allow for bolting the carby to a matching flange plate, are these available or have they been custom made?
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Ernie
Senior Member
Username: ernie

Post Number: 1531
Registered: 01-2002


Posted on Tuesday, July 10, 2012 - 01:36 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Kev,
Flanges were most likely custom made.

As to straightening your carby...
You can only bend brass once so it will need to be annealed.

Take all of the air valve parts out of it.

I have had good luck with parts like your air horn by heating it with a torch to a dull red. Hold it with a pair of pliers till the color just goes away then just drop it in a bucket of water. You will need to do this in low light to properly see the color changes.
This will allow you to bend it once again and most likely get it quite close.
Once you have done that I would take a plain old screw type hose clamp (not a mini clamp)and put it around the air horn and that will most likely compress it back into shape as you tighten it.
Once straightened you can silver solder it along the crack
Hope this helps
Ernie
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Todd Vidgen
Senior Member
Username: todd_vidgen

Post Number: 230
Registered: 03-2008
Posted on Tuesday, July 10, 2012 - 05:35 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

That insert inside the air horn is not standard either,they were usually put in to compensate for
worn engines
Todd
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kevin lang
Member
Username: klanger

Post Number: 13
Registered: 03-2012


Posted on Tuesday, July 10, 2012 - 10:50 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Ernie,

Thanks for the tips,I thought that would be the case with the flange. I like your idea of the hose clamp, saves belting it with a hammer.:-)

Todd,

I wondered what it was there for as I hadn't seen it on any others. I have removed it.

Thanks Guys
Kev.
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Matt Rowlison
New member
Username: matrow

Post Number: 1
Registered: 03-2013
Posted on Saturday, March 09, 2013 - 10:46 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Hi Guys,

New to this site. Today I picked up an Alpha Model D carburetor. It's missing the top plate (is that the slide?)but has the float and all fittings. Anyone need it for one of their projects?
Contact me here or at rowlison58@msn.com
I'm in Canberra.

Cheers

Matt

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