Author Topic: A slow Seeley Turbo build  (Read 1094 times)

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Offline eli

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A slow Seeley Turbo build
« on: May 01, 2018, 03:14:46 pm »
Hi there,
I didn't want to go on and just read what is to be found here but wanted to contribute to the community as well.
Introduction here:
http://forums.sohc4.net/index.php/topic,171909.0.html

As I don't have much time for what I really prefer to do (tinker around in the workshop) I'm afraid the whole building process can stretch out for a couple of years from now on. Please don't be disappointed. I'll try and post when possible.
My Seeley project started in 2002 when - after I almost flew off the autobahn with my heavily modified but still wobbly stock framed CB750 - I bought a Seeley frame:


I had it replated with nickel

and started searching for everything else I needed: as you can see there were Marzocchi forks and Konis etc. Built a gas tank from steel panels and so on.
Then everything got stuck until 3 years ago. In the meantime I completed my workshop with a couple of conventional machines, taught myself the metalworking (thank you youtube!) and TIG-welding and bought more parts on Ebay if I could get something for small money.
Then I aquired an ATP Turbo Kit from a guy in Switzerland who was rebuilding a Bimota HB1 and got rid of non-original components. (If there is somebody around who has a HB1 and wants to fit a Turbo, I still have a special exhaust for that which was custom built for the HB1 - not very likely, isn't it  ;D)
From then on, the whole thing went kind of wild...
This is what it looks now:


I really love that old school cafe racer look!






As you can see, I swapped the Marzocchi for a 38mm Betor, rebuilt an aluminum rickman gas tank, made a seat from aluminum, made my own "swamp thing" style deep oil pan, built my own version of a CR750-like Alternator,  an exhaust from stainless tubes and lots of other parts. Still much more to do.

I want to keep the whole thing under 180kg, so I'm making all my axles, bolts etc. from titanium:


I will post pics of the working process of the parts as far as I have them - I prefer working on the bike over making pictures of it, you know.

to be continued...
eli
« Last Edit: May 01, 2018, 03:54:06 pm by eli »
Will my patience hold till the thing is finished???

Seeley build:
http://forums.sohc4.net/index.php/topic,171911.0.html

Offline SKTP

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Re: A slow Seeley Turbo build
« Reply #1 on: May 01, 2018, 04:56:24 pm »
Holy Moly!
1978k rebuild thread http://forums.sohc4.net/index.php?topic=68423.0
BIKE OF THE MONTH - OCTOBER 2017
2003 Ducati M800ie
1997 Honda CR-V
2004 Honda CR-V
1966 Honda S90

Offline SOHC4 Cafe Racer Fan

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Re: A slow Seeley Turbo build
« Reply #2 on: May 01, 2018, 05:06:18 pm »
180 kg! That’ll be amazing if you pull it off.
1975 CB550K1 "Blue" Stockish Restomod (http://forums.sohc4.net/index.php?topic=135005.0)
1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2014 MV Agusta Brutale Dragster 800
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html)

"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html)

Sold/Emeritus
1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
1977 CB750K7 "Nine Lives" Restomod (http://forums.sohc4.net/index.php?topic=50490.0) - Sold
2005 RVT1000RR RC51-SP2 "El Diablo" - Sold

Offline spotty

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Re: A slow Seeley Turbo build
« Reply #3 on: May 01, 2018, 05:35:01 pm »
spectacular so far, keep up the good work
and here was me thinking I'd kicked the honda habit........silly me

Offline seanbarney41

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Re: A slow Seeley Turbo build
« Reply #4 on: May 01, 2018, 07:21:52 pm »
super duper!  excited to watch whatever you share
If it works good, it looks good...

Offline slikwilli420

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Re: A slow Seeley Turbo build
« Reply #5 on: May 01, 2018, 07:29:41 pm »
Very cool! Your weight goal is very doable with the parts you are using. The frame and bodywork are key to that light weight. Titanium is a nice choice as well.
All you gotta do is do what you gotta do.

Vintage Speed Parts Mashup: http://forums.sohc4.net/index.php?topic=133638.0
Rickman CR Parts Kit Refresh: http://forums.sohc4.net/index.php/topic,154837.0.html
DHolda/Seeley Mashup: http://forums.sohc4.net/index.php?topic=144774.0
AHRMA CB750 Racer: http://forums.sohc4.net/index.php/topic,158461.0.html
AHRMA Superbike Heavyweight Racer: http://forums.sohc4.net/index.php/topic,173120.0.html

Online scottly

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Re: A slow Seeley Turbo build
« Reply #6 on: May 01, 2018, 10:18:43 pm »
Welcome Michael! What is the number of your Seeley? You might want to also post on this board your story of how you acquired the bike and it's history.
Scott (#521)
http://forums.sohc4.net/index.php/topic,143304.150.html#lastPost
Don't fix it if it ain't broke!
Helmets save brains. Always wear one and ride like everyone is trying to kill you....

Offline Zunspec

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Re: A slow Seeley Turbo build
« Reply #7 on: May 02, 2018, 01:40:49 am »
Wow, what a fantastic project.  Looking forward to see how it develops.

Cheers  Geoff

Offline eli

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Re: A slow Seeley Turbo build
« Reply #8 on: May 02, 2018, 01:44:05 am »
Thanks!
Will my patience hold till the thing is finished???

Seeley build:
http://forums.sohc4.net/index.php/topic,171911.0.html

Offline Zunspec

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Re: A slow Seeley Turbo build
« Reply #9 on: May 02, 2018, 09:20:10 am »
Hi eli,

I also have a German spec. frame, although with a std. F1 engine rather than the powerhouse you are building.  Love your workmanship, top class  8)

Cheers  Geoff

Offline eli

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Re: A slow Seeley Turbo build
« Reply #10 on: May 02, 2018, 12:02:18 pm »
Hi Geoff, I read your posts about your Seeley more than once  ;) Beautiful bike that you have there.
Building an original one was my first idea, but I could't find any parts but a dented gas tank, so I decided to go the custom way.
« Last Edit: May 02, 2018, 12:04:59 pm by eli »
Will my patience hold till the thing is finished???

Seeley build:
http://forums.sohc4.net/index.php/topic,171911.0.html

Offline Zunspec

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Re: A slow Seeley Turbo build
« Reply #11 on: May 02, 2018, 04:33:41 pm »
Hi eli,

I understand where you are coming from.  It's worth remembering that Seeley only assembled a total of 6 bikes (like mine) at the factory.  All the rest of the frame kits went to individual builders and although the kits are very well engineered to accept the parts from a standard CB750 the variations were numerous.  You have a lot of scope to build to your own requirements. 

Cheers  Geoff

Online scottly

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Re: A slow Seeley Turbo build
« Reply #12 on: May 02, 2018, 08:29:13 pm »
How much does the turbo weigh?
BTW, I'm jealous of your plating; it looks beautiful. I'll have to console myself by thinking that mine has well earned "patina", as well as some of the original Reynolds 531 decals. ::)
Don't fix it if it ain't broke!
Helmets save brains. Always wear one and ride like everyone is trying to kill you....

Offline tshrey

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Re: A slow Seeley Turbo build
« Reply #13 on: May 03, 2018, 07:57:32 am »
Where are you sourcing your titanium from?

Offline slikwilli420

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Re: A slow Seeley Turbo build
« Reply #14 on: May 03, 2018, 08:07:24 am »
Where are you sourcing your titanium from?

He's in Germany, so may be cost prohibitive vs sourcing in the US. I get mine from Allied Titanium and fasteners from Met-tec or Ti64.
All you gotta do is do what you gotta do.

Vintage Speed Parts Mashup: http://forums.sohc4.net/index.php?topic=133638.0
Rickman CR Parts Kit Refresh: http://forums.sohc4.net/index.php/topic,154837.0.html
DHolda/Seeley Mashup: http://forums.sohc4.net/index.php?topic=144774.0
AHRMA CB750 Racer: http://forums.sohc4.net/index.php/topic,158461.0.html
AHRMA Superbike Heavyweight Racer: http://forums.sohc4.net/index.php/topic,173120.0.html

Offline eli

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Re: A slow Seeley Turbo build
« Reply #15 on: May 03, 2018, 11:18:11 am »
Uhmmm, I make bargains on ebay?  ::)
It's always grade 5 oddments from professional companies and workshops here in Germany. Some will even sent papers with it. I have a bidding limit and bought only for little money for years and now I have everything I need for a couple of bikes. Could safe a lot of money comparing to buy just on the job from a professional dealer...
Will my patience hold till the thing is finished???

Seeley build:
http://forums.sohc4.net/index.php/topic,171911.0.html

Offline Darren Jakal

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Re: A slow Seeley Turbo build
« Reply #16 on: May 03, 2018, 03:40:11 pm »
Dam, so many amazing bikes and builders here. Project Shop is over the top!

cheers, dj

Offline eli

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Re: A slow Seeley Turbo build
« Reply #17 on: May 04, 2018, 12:11:58 am »
How much does the turbo weigh?
BTW, I'm jealous of your plating; it looks beautiful. I'll have to console myself by thinking that mine has well earned "patina", as well as some of the original Reynolds 531 decals. ::)

Scottly,
the Rajay turbo is around 5,4 kg or 12,1 lbs. I didn't put everything on the scales so far, but I think there will be a weight disadvantage of the turbo setup of about 6-8kg (12-14lbs) compared to carbs and 4-1

I need those Reynolds stickers!
eli
Will my patience hold till the thing is finished???

Seeley build:
http://forums.sohc4.net/index.php/topic,171911.0.html

Online scottly

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Re: A slow Seeley Turbo build
« Reply #18 on: May 04, 2018, 07:23:24 pm »
Back when I bought my bike I was told by a friend, who had built his own bicycle frame from Reynolds 531, that the only way to get the stickers was to buy the tubing; they included 2 stickers with each length of tube, IIRC. There is an outfit that makes reproductions, under license from Reynolds, but there were many variations over the decades since it was first made in the 1930's. I'll get a pic so you can compare.
https://h-lloyd-cycles.myshopify.com/pages/reynolds-tubing-decals
« Last Edit: May 04, 2018, 07:25:53 pm by scottly »
Don't fix it if it ain't broke!
Helmets save brains. Always wear one and ride like everyone is trying to kill you....

Offline eli

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Re: A slow Seeley Turbo build
« Reply #19 on: May 05, 2018, 01:51:49 am »
Thanks!!!!
Will my patience hold till the thing is finished???

Seeley build:
http://forums.sohc4.net/index.php/topic,171911.0.html

Offline Morrisons

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Re: A slow Seeley Turbo build
« Reply #20 on: May 05, 2018, 03:36:18 am »


Scottly,
the Rajay turbo is around 5,4 kg or 12,1 lbs. I didn't put everything on the scales so far, but I think there will be a weight disadvantage of the turbo setup of about 6-8kg (12-14lbs) compared to carbs and 4-1

I need those Reynolds stickers!
eli
[/quote]

That weight doesn't sound too bad. That's not too heavy, right? Great project btw, Eli. I'm enjoying reading about the process very much.

Online scottly

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Re: A slow Seeley Turbo build
« Reply #21 on: May 05, 2018, 06:35:38 pm »
Here is a pic of the left side decal; all that's left of the right side is a band from the top, which still has the "Reynolds" and the tops of the numbers. The PO placed a clamp around the tube over the decal for a muffler support strap. :(
My decal is approximately 25mm wide by 20mm high. The closest I found on the site I posted was 531AE NORTON, but it is 29 x 22mm, and the color of the numbers is different. Perhaps you could send them my pic and inquire if they have it in their library?
Scott   
Don't fix it if it ain't broke!
Helmets save brains. Always wear one and ride like everyone is trying to kill you....

Offline eli

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Re: A slow Seeley Turbo build
« Reply #22 on: May 06, 2018, 01:44:26 pm »
Scotty, thanks a lot! I will get in contact with them.
Will my patience hold till the thing is finished???

Seeley build:
http://forums.sohc4.net/index.php/topic,171911.0.html

Offline eli

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Re: A slow Seeley Turbo build
« Reply #23 on: May 23, 2018, 04:09:15 am »
Let's proceed...
Here is the build of the seat. For the the backlight, I made the housing on the lathe.






Will my patience hold till the thing is finished???

Seeley build:
http://forums.sohc4.net/index.php/topic,171911.0.html

Offline eli

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Re: A slow Seeley Turbo build
« Reply #24 on: May 23, 2018, 04:21:26 am »
The build of the large oil pan:








The pan is not finished, especially I want to find out more about how the swamp thing channels the oil  ::)
then I will make the adapter for the oil pump.
I have no idea why some of the pics are upside down!!! >:(
Will my patience hold till the thing is finished???

Seeley build:
http://forums.sohc4.net/index.php/topic,171911.0.html

 

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