Single Carb Manifold Design per Weber - Steve Saunders Goldwing Forums

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post #1 of 31 (permalink) Old 05-05-2014, 06:47 PM Thread Starter
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Single Carb Manifold Design per Weber

...read the .pdf
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post #2 of 31 (permalink) Old 05-05-2014, 10:49 PM
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post #3 of 31 (permalink) Old 05-05-2014, 11:39 PM Thread Starter
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I just read the .pdf
I used a speech-to-text converter. That works fine.
It was my .pdf converter. A free version built into a document writer I use. I usually have no problems with it.
It'll get choppy sometimes.
It's one of those instant button-click converters.
...but I do have style though.

I'll convert it again and >look at it< before I post it to make sure it's right.
Looks like a paragraph is missing..
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post #4 of 31 (permalink) Old 05-06-2014, 09:44 AM
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post #5 of 31 (permalink) Old 05-07-2014, 06:29 PM Thread Starter
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I've replaced the .pdf with a readable and extended version.
I've parsed charts and drawings from the original but the majority of the text is intact.
Hope it helps..
CM
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post #6 of 31 (permalink) Old 05-08-2014, 10:30 PM
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I to found that very informative and easy to follow. Of course there is a big difference from having a basic understanding of a document and building the manifold and actually completing the conversion. My fabrication skills leave a lot to be desired.

Rod
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post #7 of 31 (permalink) Old 05-09-2014, 06:22 AM Thread Starter
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Thanks Rodd.
I do try to give the best answer I can when possible.
Sometimes the questions don't happen though.

Example the previously posted picture that I am reposting now. No questions surfaced related to it. It is a very telling picture that went unnoticed for its intent.
Attachment 125594

Brazed Aluminum Manifold

1) - showing a fully brazed runner section without any alteration or smoothing of the finished braze. That is a finished brazing using the correct temperatures for the material. It is structurally sound and not so bad looking once polished out.

2) - shows a perfectly brazed port outlet-to-runner tubing connection. The key in having excellent flow of the brazing material is in having all three metals at the same temperature. The braze relied on a capillary affect to draw the material into the joint. A very nice brazing.

3) - showing a acceptable brazing. Notice the roughness of the port outlet-to-runner tubing joint material? Not enough heat was applied to the plenum outlet causing the brazing material to cool faster than it should before setting. It is not as strong of a joint as #2, but will do the job.

4) - Gaps can be bridged by brazing. A electrical weld would have a hard time in dealing with a gap like this one.

5) - as can be seen in the brazing material, a quite excessive gap was bridged on this runner for the required bending. Look closely at #1 as it shows the same bridging.

So, if the questions do not get asked, I have nothing to answer.
Fabrication skills are much like anything else.
Practice, practice and more practice.
Brazing aluminum 》effectively《 takes some experience.
It is not out of range for us to do in our garages if some practice in the techniques in applying the right amount of heat are found.

Nobody ever bothered to ask questions about the brazing done to the manifold pictured. The pic was designed for mention ...just like what is being done of it in this post now.
Again, no questions get no answers.
I've tried to give realistic options on putting the best possible manifold together in using the least amount of required tools.
With a fair amount of "machining" done to the manifold in the pic, nothing but a Dremel was used to get it done and prepped for brazing. Any gas capable of 700F will do.

Now imagine this: ...that those runner tube fish-eye cuts are seamless once the bend is closed and brazed. The finished brazing would have all seams looking like #2. That would be considered a beautiful brazing-job on that sacrificial manifold I've pictured above.
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post #8 of 31 (permalink) Old 05-09-2014, 06:23 AM
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Um, Steve, that attachment is not valid, I get an error message...

did you double check it to make sure it is viewable?

~ John


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post #9 of 31 (permalink) Old 05-09-2014, 06:36 AM Thread Starter
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Android and posting in-line is great ...if it worked.
I attached it normally.
Thanks John..
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post #10 of 31 (permalink) Old 05-09-2014, 09:51 AM
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ah so the Androids are amongst us says this Galaxy S5 owner

I am still trying to figure out some of the finer nuances of surfing the forum with mine.
So far, for general reading, and even some minor moderating, the Motorcycle.com application does a pretty good job.

I need to practice uploading graphics with it to see how that works for me.

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