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Board Trackers and Vintage Motorized Bicycles Vintage enthusiasts share your board trackers and other vintage motorized bicycles ideas, builds and replicas here

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  #1  
Old 03-06-2010, 03:37 PM
diegom diegom is offline
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Default 1923 German engine for motorized bikes

hi guys,

just for fun (and a bit of history) since it's made out of pure un-obtanium, but here's some pics of a true gem: a 1923 four stroke clip-on engine made by Columbus-Horex Gnom, somewhere in Germany...

I find it impossibly cool

ciao!
Attached Images
File Type: jpg motore%20001.jpg (35.3 KB, 167 views)
File Type: jpg motore%20002.jpg (43.6 KB, 145 views)
File Type: jpg motore%20004.jpg (74.4 KB, 148 views)
File Type: jpg motore%20010.jpg (78.7 KB, 146 views)
File Type: jpg motore%20020.jpg (69.7 KB, 116 views)
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  #2  
Old 03-06-2010, 03:41 PM
diegom diegom is offline
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Default Re: 1923 German engine for motorized bikes

More pics... note the magneto ignition!

how cool would a boardtracker be with one of those??

ciao
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File Type: jpg motore%20022.jpg (61.8 KB, 48 views)
File Type: jpg motore%20019.jpg (38.9 KB, 53 views)
File Type: jpg motore%20027.jpg (57.7 KB, 57 views)
File Type: jpg motore%20029.jpg (84.6 KB, 76 views)
File Type: jpg motore%20030.jpg (67.7 KB, 44 views)
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  #3  
Old 03-06-2010, 03:41 PM
Nougat Nougat is offline
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Default Re: 1923 German engine for motorized bikes

Is that one of those crazy rare diesel engines?
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  #4  
Old 03-06-2010, 03:45 PM
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2door 2door is offline
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Default Re: 1923 German engine for motorized bikes

Here's a little history for your motor> http://makismc.adr.dk/horex_history[1].htm

Tom
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Last edited by 2door; 03-06-2010 at 03:58 PM.
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  #5  
Old 03-06-2010, 03:45 PM
diegom diegom is offline
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Default Re: 1923 German engine for motorized bikes

well, it's got a normal sparkplug (in front of the valves) and a magneto, so it's a normal gas engine...
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  #6  
Old 03-06-2010, 03:49 PM
diegom diegom is offline
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Default Re: 1923 German engine for motorized bikes

Quote:
Originally Posted by 2door View Post
Here's a little history for your motor
thanks tom!!

so it's a 62.5cc :-))

ciao
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Old 03-06-2010, 06:10 PM
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diceman2004 diceman2004 is offline
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Default Re: 1923 German engine for motorized bikes

thats awsome , to see those open valves moving would indeed be cool .
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  #8  
Old 03-06-2010, 08:13 PM
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Crazy Horse Crazy Horse is offline
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Default Re: 1923 German engine for motorized bikes

Now this is a real vintage motorbike!

Verstehen Sie? Das gefällt mir.

Bis später. Crazy Horse.
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File Type: jpg gnom.jpg (261.3 KB, 181 views)
File Type: jpg gnom3.jpg (254.1 KB, 72 views)
File Type: jpg gnom5.jpg (230.9 KB, 148 views)
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  #9  
Old 03-07-2010, 07:14 AM
diegom diegom is offline
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Default Re: 1923 German engine for motorized bikes

That's awesome, Crazy Horse!!!

where the **** did you find those pics??
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  #10  
Old 03-07-2010, 07:19 AM
diegom diegom is offline
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Default Re: 1923 German engine for motorized bikes

Quote:
Originally Posted by diceman2004 View Post
thats awsome , to see those open valves moving would indeed be cool .
having exposed rockers arms and valves was a lot more common that you might think...

even the Ducati Cucciolo had them until about 1955 when they finally put a cover on them (but still no forced lubrication!!)
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