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1956 wideline featherbed frame details

Norton Models (not Commando or P11)

1956 wideline featherbed frame details

Postby canadel62 » Sat Apr 01, 2017 9:22 am

I am off to my welder artist with the subject frame can someone provide me with a few measurements as its missing a few~6 tabs and their locations are hard to nail down without an original frame to go by. Specifically its missing the following indicated in red on jpg attached( Im assuming the jpg is an original stock wideline frame;

1.0 The two tabs on the bottom tubes for engine plate mountings
2.0 The two tabs/hooks on the right side horizontal tube Maybe tank mounts?
3.0 The two vertical tabs just behind the horizontal and vertical tube junctions, Maybe seat mounts?

And the size and spacing of the holes in the vertical welded in engine mounting plate, there should be two as circled in red, on the frame I have there are some six holes some need to be filled in.
Also the horizontal tubes which run under the seat have been closed in should they be opened up to install a frame loop which would support the back of the seat/fender/light etc.

I am planning on installing a 500cc single,OHC engine in the frame hints for that application would also be appreciated. Thanks in advance martin.

[/img]http://i1248.photobucket.com/albums/hh489/canadel62/image_redmarked_zpsixkyfwyv.jpg[/img]

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Re: 1956 wideline featherbed frame details

Postby Triton Thrasher » Sat Apr 01, 2017 10:18 am

canadel62 wrote:I

Image


The one at the front, behind the steering head is part of the head steady arrangement. Odd thing to cut off.


The two hooks on the right side top tube are for a tyre pump.

The lugs on the bottom tubes are for the centre stand.

The closed off ends of the seat subframe tubes are the same as my 1957.

I expect the tabs under the seat are for the oil tank and tool box. I haven't got those original parts on mine.
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Re: 1956 wideline featherbed frame details

Postby Rohan » Sat Apr 01, 2017 3:35 pm

I wouldn't be taking that frame anywhere near a welder until you have ALL the parts in your hands,
and have mocked it up on the bench and have seen precisely where everything NEEDS to go.
You can always use radiator hose clamps etc to hold stray brackets on strongly enough to see they are in the correct places.

And fitting an inter into it, you need to see that the head and cambox clear the frame tubes up in that area FIRST,
the factory frames had a big flat in the frametube on the rhs in that vicinity to avoid that drama...
Have fun !

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Re: 1956 wideline featherbed frame details

Postby ashman » Sat Apr 01, 2017 3:37 pm

The four tabs under the seat is for a tool tray to mount on, the oil tank and battery box mounts inside the frame, there should be a lud welded there for the battery box, I no longer run a orginal oil tank or battery box I am running a round alloy oil tank that is mounted under the tool tray that sits under the seat, I think the top of the orginal oil tank mounted of the front side of the tool tray, but when I brought my 1957 Featherbed frame the orgianl mounts for the oil and battery box were missing but I think the oil tank at the bottom mounted to the back of the battery box as well, but its been so long since I had the orginal oil tank and battery box fitted.

Ashley

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Re: 1956 wideline featherbed frame details

Postby bad_friday » Sat Apr 01, 2017 11:18 pm

Here https://andover-norton.co.uk/en/shop-dr ... pair-items you'll find a detailed drawing of a wideline.

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Re: 1956 wideline featherbed frame details

Postby Triton Thrasher » Sun Apr 02, 2017 2:00 am

bad_friday wrote:Here https://andover-norton.co.uk/en/shop-dr ... pair-items you'll find a detailed drawing of a wideline.

Fritz


That one's not got most of the lugs he's asking about.
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Re: 1956 wideline featherbed frame details

Postby Bernhard » Tue Apr 04, 2017 7:17 am

No idea if this is a slimline or wideline frame, I assume single and twin frames are different regarding holes for engine plates, perhaps it would be easier if you obtain the correct engine plates for your project and go from there;

http://www.nortonownersclub.org/noc-cha ... e-half-bmp

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Re: 1956 wideline featherbed frame details

Postby Matchless » Tue Apr 04, 2017 3:13 pm

It appears to be a Slimline from the look of the rear footrest/exhaust mounts.

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Re: 1956 wideline featherbed frame details

Postby Rohan » Tue Apr 04, 2017 3:37 pm

It is indeed for a slimline - been discussed here before.
The full frame is shown there someplace too.

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Re: 1956 wideline featherbed frame details

Postby canadel62 » Wed Apr 05, 2017 9:53 am

Thanks for the input, sofar i have the two hooks on the upper horizontal tube are not strategic as they are for a tyre pump, no-problem.
The two lugs/tabs on the bottom horizontals are for a centre stand, If i buy a centre stand for a wideline frame then slide it along the two bottom tubes I'm guessing that where it will fit/mounts the closest is where the two tabs should be welded on. The Andover web reference given has no repair parts for these tabs although they have many others. The closed horizontal tubes at the seat as indicated may be stock for that year. Unity Equipe sell a frame loop which ostensibly bolts onto a wideline feather bed frame so that will probably work. Unity equipe and others sell engine plates for many applications,(this application is for a 1936 Inter 500cc SOHC in the wideline featherbed). So I guess I have to buy the engine plates as per the application and "cut and try" to figure out which of the six holes on the engine/swingarm mounting gusset live and which die.

Any further information would be appreciated. Thanks sofar.Martin.

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Re: 1956 wideline featherbed frame details

Postby ashman » Wed Apr 05, 2017 2:52 pm

Its not hard to make your own engine mounts as I made my own for the Commando motor to mount into my Featherbed, just sit the motor where its fits the best and make temp plates out of cardboard same as with the gear box making sure the chain will have a straight run to the rear wheel, once you have the temp plates go to a engineering place that has a plasma cutter and cut them out of 5mm plate steel, also make sure you use a strong head stay on the Featherbed frame, its very important to run one.

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Re: 1956 wideline featherbed frame details

Postby Matt Spencer » Wed Apr 05, 2017 10:40 pm

The Japanese response to ' styling ' , was to add more .
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Re: 1956 wideline featherbed frame details

Postby acotrel » Thu Apr 13, 2017 4:47 pm

If you are making your own engine plates, you should ensure that the centre of the gearbox sprocket is about 6mm lower then the line between the centres of the pivot and rear sprocket, so the chain loosens slightly as the rear suspension rises and the pull never tends to make the suspension rise.
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