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Classic bike

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jim'02/03/2013 17:07:38
72 forum posts
6 photos

Is the John Stevenson in the article the one and same?

David Clark 102/03/2013 17:35:44
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3357 forum posts
112 photos
10 articles

Surely there can't be more than one John Stevenson?

regards David

John Stevenson02/03/2013 20:25:34
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5068 forum posts
3 photos

Dunno, don't have classic bike and their web site doesn't list content.

What is the article about ?

Probably are more John Stevensons around, great grandad Sam had one of the first ball bearing push bikes around here, meant he could get round a lot faster...................wink

jim'02/03/2013 20:31:49
72 forum posts
6 photos

The article is about dennis jones, from derby.

John Stevenson02/03/2013 20:37:32
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5068 forum posts
3 photos

Yes then it's me [ guilty, hand in air ] not seen the article but had a lot to do with Dennis and his bikes, even owned two at one point in a previous life.

 

Need to nip down to W H Smitt GMBH and peruse a copy when I get a minute.

 

This is a picture of one of the twins.

 

Used to rev to 11,000 rpm in 1948, not bad for a shed built special.

 

He was also the brains behind the Myford Moped.

Edited By John Stevenson on 02/03/2013 20:45:21

fizzy02/03/2013 20:58:20
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1860 forum posts
121 photos

why have 5 pulley wheels when 11 cogs will do the same!!!

looks awesome though!

Michael Horner03/03/2013 08:09:33
229 forum posts
63 photos

"Used to rev to 11,000 rpm in 1948, not bad for a shed built special."

Ahh but was it your shed Johnwink

Michael.

chris stephens04/03/2013 12:07:24
1049 forum posts
1 photos

Hi DC1

There certainly are more than one, as my father was John that makes me John Stephens' son. and I'm a motorcyclist (that a "biker" for you modernists)

chriStephens

Ady104/03/2013 12:34:49
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6137 forum posts
893 photos

why have 5 pulley wheels when 11 cogs will do the same!!!

-----

The old TX1 Taxis used Nissan 2.7 diesels with no chain or belt

500,000 miles is easily reached and surpassed by an owner, the reliability is phenomenal with lots of low end grunt

Top speed isn't much to crow about but if you want to tour around the world then go to the moon and back without any timing belt issues ever arising it's actually a great system

jason udall04/03/2013 13:18:21
2032 forum posts
41 photos
Posted by Ady1 on 04/03/2013 12:34:49:

why have 5 pulley wheels when 11 cogs will do the same!!!

-----

The old TX1 Taxis used Nissan 2.7 diesels with no chain or belt

500,000 miles is easily reached and surpassed by an owner, the reliability is phenomenal with lots of low end grunt

Top speed isn't much to crow about but if you want to tour around the world then go to the moon and back without any timing belt issues ever arising it's actually a great system

Wonder if anyone ever squeesed one of those into a bike?..seen pickys of a bike based around a 500 bhp dodge viper v10.....intresting ....

Always fancied using electric in a bike....unfeasibly high accelleration which seems to be the thing for bikes...

Alan Redgrave05/03/2013 10:50:39
32 forum posts

Wow !!!---------- looks similar to the timing end of a Napier Deltic...........Perhaps he was a Dentist by trade ??smiley

Les Jones 105/03/2013 11:51:03
2292 forum posts
159 photos

Hi Alan,
For those that do not know what the Deltic looks like here are two pictures.

Diagram of Deltic diesel engine

 

Deltic diesel engine

I remember when I was at school being taken around the English Electric factory where these were made. (Photographs taken at York Railway museum.)

Les.

Edited By Les Jones 1 on 05/03/2013 11:53:07

Mike Clarke05/03/2013 12:07:37
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95 forum posts
2 photos

The place I used to work at tested many Deltics for the Royal Navy - I would often go and have my butties within earshot. I used to be involved adding instrumentation to them too. Miss them!

V8Eng05/03/2013 12:48:58
1826 forum posts
1 photos

I seem to remember that the RN shipboard Deltics were fitted with cartridge start systems?

Edited By V8Eng on 05/03/2013 12:50:46

Mike Clarke05/03/2013 16:39:40
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95 forum posts
2 photos

I'm not sure - but I think these were started by compressed air, I had nothing to do with the actual engine runs. Most info was second hand, they were fitted to minesweepers with GRP (handy!) hulls I believe. Rolls Royce would rebuild and repaint them, and then to us for the test beds, then off to sea.

Cheers,

Mike.

MadMike05/03/2013 18:12:52
265 forum posts
4 photos

Just to keep this thread "On Topic" as they say elsewhere, and bearing in mind the number of model locomotives made here, remember that the Deltic was also a very successful locomotive engine, with the loco's even being named Deltics. Just my 2 Drachma while I am logged on.

Alan Redgrave05/03/2013 18:43:27
32 forum posts

Hi guys--------- my last post on this particular thread 'coz we've wandered "off topic " a bit, but hopefully you're looking at the "Phasing" end where the three cranks and auxillary drives are all combined ?? You can see why that original picture brought this to mind ??----------------<a href="http://tinypic.com?ref=2zjj8qx" target="_blank"><img src="http://i47.tinypic.com/2zjj8qx.jpg" border="0" alt="Image and video hosting by TinyPic"></a>

Alan Redgrave05/03/2013 18:48:28
32 forum posts

<a href="http://tinypic.com?ref=2zjj8qx" target="_blank"><img src="http://i47.tinypic.com/2zjj8qx.jpg" border="0" alt="Image and video hosting by TinyPic"

Alan Redgrave05/03/2013 18:50:50
32 forum posts

Sorry about this guys-----------I have a lovely photo of the Phasing Gears for the Deltic but can't seem to load it------------- Never mind---- let it go for now

Stub Mandrel05/03/2013 18:56:24
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4318 forum posts
291 photos
1 articles

The Deltic was 3 Junkers Jumo engines with an extra gear to make one crakshaft turn the opposite way.

ME has featured Clen Tomlinson's "Clentec" Deltic-configuration petrol model

(I wasn't sure of the name but after typing it google auto-offered me 'clen tomlinson deltic' - that's fame for you!

Neil

Edited By Stub Mandrel on 05/03/2013 18:59:53

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