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crank size please #719559
12/21/17 1:37 am
12/21/17 1:37 am
Joined: Apr 2014
Posts: 181
bac o burk qld
dommie90 Online content OP
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I would like to know the STD size of the nomad crank shaft please
baz

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Re: crank size please [Re: dommie90] #719584
12/21/17 8:26 am
12/21/17 8:26 am
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Most Nomads will have the 1.5 inch big end journals of the 500 and 600 cc cranks.
And the 82 mm stroke of all the 600cc engines.
Main bearing sizes are the same as all the dommies/atlas/commando family used.

If you want a fight, or a lecture, Skip has what he claims is a "factory original" Nomad/crank with 1.75" BE journals. (And thus 650cc)
This doesn't seem to have been publicly announced or documented by the factory, so the jury is still out on this as a factory build ?

Nomads would be fairly uncommon in Oz - they all went to the USA. ?
You haven't got a 600cc crank, out of say a Model 99 (600cc) dommie ?
Probably (exactly ?) the same thing, but haven't studied the various parts books to say

This pic of a selection of cranks appeared on the NOC forum a while back - thanks to Phil
It might assist in id'ing what you have ?
https://www.nortonownersclub.org/no...forum/712514206/57645653/crankshafts-jpg

If only all the family of cranks were shown together like that....
A collection of cranks, a gathering of cranks, a crackpot of cranks ?!

Re: crank size please [Re: Rohan] #720108
12/27/17 6:05 am
12/27/17 6:05 am
Joined: Apr 2014
Posts: 181
bac o burk qld
dommie90 Online content OP
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thanks Rohan, I tried to fit an Atlas crank in 99 cases turns great except the shoulder of the rods hit the cases ,so I'm lookin for a late dommie crank some in the states but the shipping cost is in effin expensive
baz

Re: crank size please [Re: dommie90] #720340
12/29/17 7:14 am
12/29/17 7:14 am
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Not much else we can suggest really. ?

Cusses for Nortons for making the crank so heavy.
Imagine if it was the whole engine...

(An Atlas engine would sorta bolt straight in.
If you don't mind that the carbs and exhausts are different, and and and...)

Re: crank size please [Re: dommie90] #721263
01/06/18 12:32 pm
01/06/18 12:32 pm
Joined: Jan 2008
Posts: 314
Concord Township, Ohio
57nortonmodel77 Offline
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Hi Baz,

which dimensions do you require? I have both early & late Nomad cranks on the bench. The very very late ones went to 1.75 mains according to:

1 factory tester whom I met in person while in the UK,
Les Emery at Norvil,
I also have seen the original factory meeting notes stating this FACT,
and I own one of them.

I know of one other very late Nomad with the bigger main journal besides mine. While there are 2 naysayers out there who both claim it is an Atlas, or a Commando crank, it simply isnt, so as has been proved over & over. In addition, the flyweights do NOT hit the engine cases on my crank, further proving the point. If you need further info, please PM me directly, as those with no knowledge of this engine will surely chime in with more BS & opinions than usable facts smile


Magneto & Dynamo restorations & supplies

My Bikes
1950 Norton Model 7:
1952 Norton ES2
1957 Norton Model 77
1960 Norton Nomad 600cc
1961 Norton ES2 (slimline)
1964 Norton Atlas Scrambler
1972 Bultaco Alpina
Re: crank size please [Re: dommie90] #721317
01/06/18 10:49 pm
01/06/18 10:49 pm
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You say "mains", but we are actually talking about big ends. ???
The MAIN bearings and journal sizes are the same across the whole of the dommie/atlas/commando family.
Its this sort of inconsistency and BS that we keep shaking our heads and gritting our teeth at...

When you provided some scant details on the NOC Forum, someone identified them as Commando bits (?)
And, these 'naysayers' keep commenting that you haven't ever shown any good pics or details of how this can possibly work, NOR actually SHOWN any evidence of these 'meetings' or 'factory notes'.

If I bolt Commando crank cheeks/big end journals to a dommie 600 crank, it sure as heck won't still fit in there.
And how would the rods and cylinder length (height) and pistons work ???,
that is almost a complete rework of the entire engine, never mind that it is now 650cc and not 600cc.
(Which Nortons would have been shouting about from the rafters )
Is this changeover from 600cc to 650cc noted in the factory records, for example ??

In a similar vein, a "factory special" 700cc manx norton recently appeared on fleabay.
No evidence offered whatsoever that this had anything to do with the factory.
Although it least detailed HOW it had actually been done ( probably by a previous owner ?)
Dubious, to say the least....

btw, for dommie90's benefit, what is the likehood of actually finding a 650cc nomad crank for sale.
Has anyone ever seen this mythical beast, on the loose so to speak.

Re: crank size please [Re: dommie90] #721326
01/07/18 12:02 am
01/07/18 12:02 am
Joined: Jan 2008
Posts: 314
Concord Township, Ohio
57nortonmodel77 Offline
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Hey Baz, offer still stands. I have more factory info on the Nomads than Rohard. Please feel free to contact me anytime. I have several of these cranks FWIW in both size main journals. And I also have both Norton factory part numbers, one for the 1.5 & one for the 1.75 size on Norton Letterhead to Berliner smile

Skip


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My Bikes
1950 Norton Model 7:
1952 Norton ES2
1957 Norton Model 77
1960 Norton Nomad 600cc
1961 Norton ES2 (slimline)
1964 Norton Atlas Scrambler
1972 Bultaco Alpina
Re: crank size please [Re: 57nortonmodel77] #721335
01/07/18 12:59 am
01/07/18 12:59 am
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Originally Posted by 57nortonmodel77
Hey Baz, offer still stands. I have more factory info on the Nomads than Rohard. Please feel free to contact me anytime. I have several of these cranks FWIW in both size main journals. And I also have both Norton factory part numbers, one for the 1.5 & one for the 1.75 size on Norton Letterhead to Berliner smile

Skip


So, show a pic or 2 of these, prove they are more than a figment of your imagination.

Proof, proof, we demand proof
Thus far we have seen NOTHING ...

Something we can compare to Phils useful comparison of cranks over on the NOC ?
https://www.nortonownersclub.org/no...forum/712514206/57645653/crankshafts-jpg


Re: crank size please [Re: dommie90] #721664
01/10/18 10:31 pm
01/10/18 10:31 pm
Joined: Jan 2008
Posts: 314
Concord Township, Ohio
57nortonmodel77 Offline
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Proof has been provided to those worthy smile


Magneto & Dynamo restorations & supplies

My Bikes
1950 Norton Model 7:
1952 Norton ES2
1957 Norton Model 77
1960 Norton Nomad 600cc
1961 Norton ES2 (slimline)
1964 Norton Atlas Scrambler
1972 Bultaco Alpina
Re: crank size please [Re: dommie90] #721667
01/10/18 10:52 pm
01/10/18 10:52 pm
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As custodian of part of Nortons history ( or not), you have failed in your duty to edumacate the general public.
No-one seems to have actually seen one shred of evidence of which ye speak ??
Not one photo or scan even.

And if Mr Curzons occasional forays into fiction are any indication,
perhaps you don't actually have any worthy evidence,.. ?

When the somewhat more rarefied* rigid frame dommies were first discussed,
a scan of a brochure pic, with text, very rapidly materialised to silence the doubters.
https://www.nortonownersclub.org/no...69/1952-model77-export-brochure-only-jpg
(*There were less of these made than the Nomads)

You could have laid this absence of evidence to rest years ago.
Nope, all we get is hubris.

Re: crank size please [Re: dommie90] #721810
01/12/18 11:59 am
01/12/18 11:59 am
Joined: Apr 2014
Posts: 181
bac o burk qld
dommie90 Online content OP
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hi is this a 1/2 hr, argument or a 10 minute one

Re: crank size please [Re: dommie90] #721870
01/12/18 11:07 pm
01/12/18 11:07 pm
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More like a near 10 year one, spread across 3 or 4 Norton forums !!!
With not a scrap of produced evidence to back it up - thus far.

Beats me why the moderators haven't done their jobs, and asked for evidence, or desist ?
Folks have been kicked off forums for less ....?

I am involved in a few science and astronomy etc forums,
and if you ain't got evidence you ain't got NOTHING.

Re: crank size please [Re: dommie90] #721909
01/13/18 12:14 pm
01/13/18 12:14 pm
Joined: Jan 2008
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Concord Township, Ohio
57nortonmodel77 Offline
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Proof positive has been provided & on public forums, many times in fact. Rohan refuses to accept it. When the facts are shown, he questions the memory of factory employees, and the integrity of lifetime Norton parts suppliers who were there when the events happened, and questions the moderators of forums if he doesent get his way, and the forums themselves. He has been kicked off of nearly every forum he has ever been on. I have never beet booted off a forum yet.

Most Norton authorities disregard Rohan and his antics, and contact the people requesting answers directly to avoid all his childish drama & false statements (which there are many, although he will of course deny it & demand proof ) I wont wast my time with his female like drama, but feel free to google his comical answers.

As to Nomads, I started the Nomad forum to share the wealth of Nomad info from actual Norton Nomad owners, who have machines with know history. I have also interviews 2 different Norton factory test riders & 2 other factory employees, so I really dont require Rohans approval, as my info is straight from the horses mouth, so to speak, where Rohans comments come from the other end of the horse.

So to dommie90 (Baz), always happy to help a fellow Nortoneer, but not Rohan


Skip Brolund sbrolund@yahoo.com


Magneto & Dynamo restorations & supplies

My Bikes
1950 Norton Model 7:
1952 Norton ES2
1957 Norton Model 77
1960 Norton Nomad 600cc
1961 Norton ES2 (slimline)
1964 Norton Atlas Scrambler
1972 Bultaco Alpina
Re: crank size please [Re: dommie90] #721950
01/13/18 10:47 pm
01/13/18 10:47 pm
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C'mon Skip, you can do better than that.

You haven't shown us ANYTHING in the way of proof !!
No photo, no scans of committee meetings, no explanation of how this could even work.
Nothing on any forums where you have been making these claims, for years.
4 different forums, and not a word of anything to anyone.

In any scientific community, you would have been shown the door with that approach.

When you provided a skerrick of detail on the NOC, they identified it as a Commando crank ?
How can we have any confidence this isn't just all complete bollocks.
Or you haven't become a professional troll ??

Re: crank size please [Re: dommie90] #721951
01/13/18 10:56 pm
01/13/18 10:56 pm
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And in case you haven't grasped the finer points of this 'scientific method' yet Skip,
you makes your claim, and you presents your evidence.
And you get judged on the strength of your evidence.

Otherwise, its a bit like saying "I have evidence there are Martians, and trust me, I'm a Martian."

Re: crank size please [Re: dommie90] #722104
Yesterday at 10:30 AM
Yesterday at 10:30 AM
Joined: Jan 2008
Posts: 314
Concord Township, Ohio
57nortonmodel77 Offline
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In typical fasion, Rohan is wrong........again. My crank was never acuse dof being a commando crank, ever. Ben Gradler claimed it was an atlas crank, until I posted pics with the crank throw length & the part number on the cheeks. The meeting notes were also posted online, as was the replies from Les Emery who has also had the same 1.75" crank journal in a 600cc engine, and one reply from a Norton factory tester, so the facts & proof have been out there on at least 2 internet sources. Your just being lazy. Moreover, you are the only one who is not wishing to believe the truth, and I have no desire to make the effort for you. All those of importance have confirmed it, I dont need to prove a thing to you.I also spoke directly to Mr. Cakebread who was a draftsman at Norton, and he also confirmed the findings, maybe you should do the same.


Magneto & Dynamo restorations & supplies

My Bikes
1950 Norton Model 7:
1952 Norton ES2
1957 Norton Model 77
1960 Norton Nomad 600cc
1961 Norton ES2 (slimline)
1964 Norton Atlas Scrambler
1972 Bultaco Alpina
Re: crank size please [Re: dommie90] #722108
Yesterday at 11:58 AM
Yesterday at 11:58 AM
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Gosh, some detail. !
But only of the he said, he said, he said.
So why not show us a pic of this beasties crank, and clear this up once and for all.

And remember that this is all (supposed to be) for fun, no need to take these things too seriously.
I've only ever been involved on the periphery, if at all, and not at all in most of the argy bargy..
As you well know, although you now seem to have another agenda.

Most of us are merely curious as to how this can work, (and why Nortons kept this under wraps) and you have been less than forthcoming with the actual and intricate technical details. Less words and more detail .......

Re: crank size please [Re: dommie90] #722209
15 hours ago
15 hours ago
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BTW, just for the record, I logged into the suggested site.

Nothing came up in a search for 'crankshafts', except a very brief discussion on pistons,
and there didn't appear to be any other emails that covered this subject.
And none of the pics in the picture section showed anything of unusual or special crankshafts.
The only pics along these lines showed a sludge trap, of what seemed a std crankshaft.

So, have we been led (or mislead) up the garden path, again ?
Again, if there are no pictures of Martians, then perhaps there are no Martians.

As Mr Gradler said, a while ago now
"In fact produce anything at all besides words, speculation, hearsay and opinion......"


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