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Barn Find Mysterious ES2 Chassis?? #747570
09/01/18 8:04 pm
09/01/18 8:04 pm
Joined: Apr 2015
Posts: 365
Kenya
P
Peter Gee Offline OP
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Peter Gee  Offline OP
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P

Joined: Apr 2015
Posts: 365
Kenya
Hi, following up of my barn find ES2 engine, I now see it's a 1952..but the chassis number is puzzling me.. it's written like this..cast actually.


.on the headstock

MB
>
+10446

But the engine number is

49552-4

Andon the downtube frame lug stamping

49
0552

Comments welcome.

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Re: Barn Find Mysterious ES2 Chassis?? [Re: Peter Gee] #747577
09/01/18 8:54 pm
09/01/18 8:54 pm
Joined: Aug 2001
Posts: 2,226
Oztralia
R
Rohan Offline
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Rohan  Offline
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R

Joined: Aug 2001
Posts: 2,226
Oztralia
This probably should have been tacked on to the end of your previous post.


How do you now know its a 52 ?
That (engine) number is quite a way past the start of 1953 production, at least a 1000 or more.

That MB number is the casting number of the frame lug - all frames have it !!

You sure thats not 4H and a 5 digit number.
You may have to sand off some paint, since the stampings can sometimes be a bit faint.
Don't forget to paint over it again, or it will rust.

Don't ignore either that the engine may have been changed, and may have different numbers/year/model.
This is more common that you might think - since it was often cheaper back then to just slot in another motor if it went bang!

Re: Barn Find Mysterious ES2 Chassis?? [Re: Rohan] #747637
09/02/18 2:33 pm
09/02/18 2:33 pm
Joined: Apr 2015
Posts: 365
Kenya
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Peter Gee Offline OP
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Peter Gee  Offline OP
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Joined: Apr 2015
Posts: 365
Kenya
Dear Rohan thanks.... well yes it could be a 53.... it's very hard to read ( this bike is being retrieved from someone in Zanzibar by a friend and I am reading his photos he sends)

(a) It has a Monobloc
(b) Oilbath
(c) Half width Hubs
(d) Dualseat

Looking at the frame lug pic it's very hard to tell if it's a 9 or zero but it looks like this if I blow it up.

4
9552


According to my assistant the engine number is 4-49552(71(?)x100) I asked him to copy it down.

Looking up Norton serial numbers, this would be 1951 production? Perhaps fitted with a later carb if the 51's had Type 29s

This is all being surveyed in a dark barn full of bats and rats near the Slave Market of Old Zanzibar. It's very exotic!

Cheers

Peter

Last edited by Peter Gee; 09/02/18 2:56 pm.
Re: Barn Find Mysterious ES2 Chassis?? [Re: Peter Gee] #747644
09/02/18 3:23 pm
09/02/18 3:23 pm
Joined: Apr 2015
Posts: 365
Kenya
P
Peter Gee Offline OP
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Peter Gee  Offline OP
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P

Joined: Apr 2015
Posts: 365
Kenya

Re: Barn Find Mysterious ES2 Chassis?? [Re: Peter Gee] #747688
09/02/18 11:10 pm
09/02/18 11:10 pm
Joined: Aug 2001
Posts: 2,226
Oztralia
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Rohan Offline
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Rohan  Offline
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Joined: Aug 2001
Posts: 2,226
Oztralia
Thats a swingarm frame, so its likely 1953 (at least).
And 49552 comes up as 1953 in most Norton serial number lists.

He hasn't polished off enough paint to see the full frame number yet. It sounds like it will match.
79 x 100 is the bore and stroke of Norton engines of 500cc, for many a decade, its almost their trademark.
Some rego docs quote it too, which is a bit odd.

The Monobloc is a subsequent add-on, they weren't around that early.

Good luck, and have fun ! & hope its all there ....

Re: Barn Find Mysterious ES2 Chassis?? [Re: Rohan] #747731
09/03/18 11:35 am
09/03/18 11:35 am
Joined: Apr 2015
Posts: 365
Kenya
P
Peter Gee Offline OP
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Peter Gee  Offline OP
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P

Joined: Apr 2015
Posts: 365
Kenya
Well it was an export model for sure and since it has the SA it must me a 1953....but they started the next year's models in September after the summer holiday break, at least most factories did, so 53's were actually built in 52 and the export models shipped first, if I am correct......... yes it's nearly all there, right down to the brass "Roadholder" badges... though I am sure the silencer isn't the peardrop and a few other details..I saw the bike sitting before disassembly a year ago and it still had air in the back tire...all the tin was there and 90% undented, so I am very hopeful to get a good build out of it and I hear the Easy Two is a very reliable and simple engine so I will be on here later getting tips and looking for parts no doubt. Cheers and thanks




Originally Posted by Rohan
Thats a swingarm frame, so its likely 1953 (at least).
And 49552 comes up as 1953 in most Norton serial number lists.

He hasn't polished off enough paint to see the full frame number yet. It sounds like it will match.
79 x 100 is the bore and stroke of Norton engines of 500cc, for many a decade, its almost their trademark.
Some rego docs quote it too, which is a bit odd.

The Monobloc is a subsequent add-on, they weren't around that early.

Good luck, and have fun ! & hope its all there ....

Re: Barn Find Mysterious ES2 Chassis?? [Re: Peter Gee] #747808
09/03/18 9:21 pm
09/03/18 9:21 pm
Joined: Aug 2001
Posts: 2,226
Oztralia
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Rohan Offline
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Rohan  Offline
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R

Joined: Aug 2001
Posts: 2,226
Oztralia
What happened to my post ? Try again.

Originally Posted by Peter Gee
Well it was an export model for sure and since it has the SA it must me a 1953....but they started the next year's models in September after the summer holiday break, at least most factories did, so 53's were actually built in 52 and the export models shipped first, if I am correct.........


Yes, but thats still a 1953 model.

If it was stamped with the year letter, it would be a H for 1953.
It may well be on the frame, under that thick layer of paint.

Also, your number is 1000 or more into the build range for that year, 2000+ on some lists, so could well be into 1953 proper.
The Norton Dealers here got shipments scattered thoughout the year - they couldn't afford to pay for a whole years worth in one go.
Or even store them ? Or maybe Nortons didn't extend that much credit in one go...


Moderated by  Dave Comeau 


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