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buzzer1955 |
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buzzer1955 Nitrous Nuisance
Joined: 12 Jan 2019 Karma :
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stinkwheel |
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stinkwheel Bovine Proctologist
Joined: 12 Jul 2004 Karma :
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Jay1000RR |
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Jay1000RR Trackday Trickster
Joined: 12 Jun 2005 Karma :
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Posted: 09:54 - 05 Jan 2022 Post subject: |
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Cracking work looks great ____________________ SUBMARINERS DO IT DEEPER |
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A100man |
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A100man World Chat Champion
Joined: 19 Aug 2013 Karma :
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Posted: 10:38 - 05 Jan 2022 Post subject: Re: Moto Guzzi custom build |
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Same bike? fascinating how deceiving the first pic is with the seat on. Looks like the (sub-)frame is dipped cruiser style yest it's straight. ____________________ Now: A100, GT250A, XJ598, FZ750
Then: Fizz, RS200, KL250, XJ550, Laverda Alpina, XJ600, FZS600 |
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Robby |
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Robby Dirty Old Man
Joined: 16 May 2002 Karma :
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buzzer1955 |
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buzzer1955 Nitrous Nuisance
Joined: 12 Jan 2019 Karma :
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Posted: 14:09 - 12 Feb 2022 Post subject: |
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Up on the hoist for the first time… I have temporarily used a build stand that I have used for Ducati’s, but I will have to make a specific one as this one will impede making the exhaust fit on the bike. First job has been to make some inlet manifolds to fit the carbs… I wanted them angled upwards and inwards, and that took some working out to get the compound angle right! it ended up as 68.5 degrees. As the carb diameter is larger than the head inlet, I needed to use a tapered tube… To do this I turned up a tapered mandrel, and after annealing the alloy tube, I pressed it in with the vice, which expanded the tube by the required few mm. I then turned a grove to accept the lip inside the carb mounting blocks.
the next bit was actually quite difficult… I needed to make the hole on the flange a nice fit on the tube, but at an angle. I deliberately cut the 10mm plate quite large so I could get it mounted on the milling machine at the exact angle. I then bored the hole with an indexable boring head. If that milling machine looks old, it is! I did some work on it a few months ago and found a date… 1929!
Next job was to TIG weld the flanges on, drill the holes, and finally cut to shape.
here is a short video of the manifolds being made...
https://www.youtube.com/watch?v=-2EfrVdAiKo
https://jtccc.files.wordpress.com/2022/02/51872449199_d662666f29_o.jpg
https://jtccc.files.wordpress.com/2022/02/51874027176_e31851d70b_o.jpg
https://jtccc.files.wordpress.com/2022/02/51876878666_b979a843e8_o.jpg
https://jtccc.files.wordpress.com/2022/02/51877520120_b736838caf_o.jpg |
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Old Thread Alert!
The last post was made 2 years, 94 days ago. Instead of replying here, would creating a new thread be more useful? |
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