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Old in every sense old as in years, old as in how long I have had it, it was given to me many yeas ago as the proverbial "box of bits".
So just what was it I acquired all those years ago, and why am I now attempting to resurrect it? Firstly. it’s a ‘37 New Imperial Model 100 350cc clubman with a Bentley and Draper spring frame. And why now? Well, if I don’t do something about it now it never will get done, maybe ending as one of those sad piles bits you see at auto-jumbles or even worse, thrown away by uncaring relatives. Back then 1930's machine were considered virtually worthless, post vintage and classic bikes hadn't been yet invented.

[Linked Image from i.postimg.cc]

First time that the frame, wheels forks etc have been back together in the best part of 6 decades.

Last edited by jacks the lad; 01/01/22 10:14 am.

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That will be agreat project to watch. Interesting rear suspension.


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Originally Posted by konon
That will be agreat project to watch. Interesting rear suspension.

Bentley and Draper I believe, used by one or two others prewar. Brough , Vincent and I think Velocette played with it as well.


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Bolting bits on as I find them to save them getting lost (Again).

[Linked Image from i.postimg.cc]


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A new manufacturer to me.
Cool Beans.

https://en.wikipedia.org/wiki/New_Imperial_Motors

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That appears to be quite well preserved for its age. I have much younger projects in far worse condition.

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Originally Posted by Shane in Oz
I have much younger projects in far worse condition.

Ditto !
At the present rate of progress, be able to ride off into the sunset shortly.
Assuming the engine/gearbox are similar ....

That is quite fancy.
This is a 500, but a twin port (?) unit construction sloper spring frame is far from ordinary.
1930s really was the high point of motorcycles ?

https://cybermotorcycle.com/gallery...ial-1937-Cat-500cc-76DL-Spring-Frame.jpg

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350cc unit construction engine, single exhaust port head. Completed Oct '37 but a '38 model. fist registered in Oxford (UK) 12 March 1938 and still here.
It's condition is probably due to the fact although it's been in bits for many years it has always been inside, not left out in the weather.
Even here in the land of it's birth they are not at all common, finding missing parts is likely to be a challenge.


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Saddle support arms, the originals as with so much on this machine were missing. The only option was to fabricate some more, which involved quite a lot of trial and error and “thermal – percussion adjustment” (i.e getting it hot and hitting it with a big hammer).

[Linked Image from i.postimg.cc]


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What a great project, I remember years ago when Classic Bike magazine was first starting up there was an article called "New Imperial New Dawn", which sparked my interest at the time and still remains in my memory, but I can't remember the exact model though it was twin port.

I guess your main problem is going to be finding spares, which I assume are 99% unavailable, although the owners association will be of help.

Good luck and keep us posted with progress.


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Saddle supports and saddle (sans cover for the time being). The supports themselves needed a little bit of "tweaking" to get everything in line.

[Linked Image from i.postimg.cc]

Supports in place. Note, a "half moon" needed to milled away to clear the rear springs anchor points.

[Linked Image from i.postimg.cc]

Saddle fitted.

Last edited by jacks the lad; 01/21/22 1:56 pm. Reason: too many words.

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Nicely done.


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Today's task welding the many extra holes in the rear mudguard, of which there were quite a lot. Some holes are of course meant to be there. Such as where the mudguard attaches to the frame or to it's stays, plus fixing for the number plate, just what the other dozen were for who knows.

[Linked Image from i.postimg.cc]

As the welding torch was to hand I also took the opportunity replace upper toolbox mount. As acquired there was only the one, but upon careful examination the remains of a broken weld showed the there should have been another above it.


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Welding torch in use again today. the rear mudguard extension - the piece you have to remove to take the rear wheel out - had (excuse the pun) a whole lot of holes as well. I'm beginning to think some previous owner had an electric drill given to him as a Christmas present.

Last edited by jacks the lad; 01/25/22 5:22 pm.

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Happily the front mudguard was free of extra holes, but it was also free of any of it's stays and the little bracket where it attaches to lower front fork spindle housing.

[Linked Image from i.postimg.cc]

A home-made bracket was folded up from sheet steel and riveted into place. With the guard temporally fitted the photo shows where and how.


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Bracket for the front mudguard stays.

[Linked Image from i.postimg.cc]


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Rear mudguard extension, rear stays, toolbox, and number plate.

[Linked Image from i.postimg.cc]


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Front mudguard stays, showing the various steps to produce them along with the tool used to swage the ends. Stays made up using 1/2" steel tube while the ends using 5/8" tube

[Linked Image from i.postimg.cc]

The swage tool in use, note the tube is heated up to red-heat for the swaging operation to relive stress on the vice.

[Linked Image from i.postimg.cc]


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The front brake plate was acquired separately from the machine and although the correct size it lacked an anchor point for the brake cable. I am guessing that which ever bike it came from originally the anchor was fixed to the front fork leg, this is not however where N I put theirs. From such photos I could find the anchor was on the brake plate itself, which involved making one up and fixing in place.

[Linked Image from i.postimg.cc]

Some care was needed as to where it was placed so as not to fowl the speedometer drive or the brake shoes inside the plate. The brake arm was also missing, another item to be made.


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Was planing to get on and finish the front mudguard stays but managed to mislay them someplace. Not however a complete disaster because looking for them I turned some thing I didn't know I had, or at least I had forgotten all about. Amongst those items was A prewar 8" headlight, so before it had the chance to get lost again made up some stays and bolted it on.

[Linked Image from i.postimg.cc]

Took a bit of guess as to the position but I can always correct it if need be once I have had the chance to look at an original bike.


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excellent pro-ject and work worthy of it


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Nice work on an interesting machine. I would love to see the extent of your stash of bits if the existence of a headlamp was not known to you. I have parts I cannot immediately lay my hands on but I know that they are somewhere in the storage boxes.

Gordo


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Originally Posted by jacks the lad
Was planing to get on and finish the front mudguard stays but managed to mislay them someplace. Not however a complete disaster because looking for them I turned some thing I didn't know I had, or at least I had forgotten all about. Amongst those items was A prewar 8" headlight, so before it had the chance to get lost again made up some stays and bolted it on.
My hypothesis is that every workshop contains a space warp which takes those things you know are there somewhere and replaces them with things you didn't know you had.

In this case, you came out way ahead, finding the 8" headlight..

It seems to be coming along nicely.

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Originally Posted by Gordo in Comox
.......... I have parts I cannot immediately lay my hands on but I know that they are somewhere in the storage boxes.......
I have that myself...... the problem is that I can't find them when I finally go looking. Most frustrating.

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Originally Posted by Stuart Kirk
Originally Posted by Gordo in Comox
.......... I have parts I cannot immediately lay my hands on but I know that they are somewhere in the storage boxes.......
I have that myself...... the problem is that I can't find them when I finally go looking. Most frustrating.
There don't seem to be any observations to contradict the space warp hypothesis.
One should automatically reject the alternative hypothesis that we might be becoming old and absent-minded.

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