Author Topic: Norton Manx  (Read 970 times)

Offline Scout63

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Norton Manx
« on: January 18, 2022, 08:21:50 PM »
This is a pretty offering.  The rider in the video should be flogged.

https://bringatrailer.com/listing/1962-norton-manx/
Ben Zehnder - Orleans, MA USA

Online chuck peterson

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Re: Norton Manx
« Reply #1 on: January 18, 2022, 08:28:12 PM »
That don’t sound right..I didn’t actually hear him accelerate..
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Offline SoCV

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Re: Norton Manx
« Reply #2 on: January 18, 2022, 08:33:27 PM »
 If it has the close ratio transmission , just keeping it running in 1st gear is a pretty good feat . Carb has no idle circuit and the megaphone means it won't pull at low revs , getting it going fast enough in the parking lot to clear its throat means probably 35 MPH .

 Dusty
Almost 900,000 in a little over 8 years in two .

RIP Mike Prentice

Online nc43bsa

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Re: Norton Manx
« Reply #3 on: January 18, 2022, 10:29:56 PM »
I've seen these go for upwards of $35,000.

Because the engines are available new now, who knows how high this one will go?
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Re: Norton Manx
« Reply #3 on: January 18, 2022, 10:29:56 PM »

Offline Cal3Me

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Re: Norton Manx
« Reply #4 on: January 19, 2022, 12:05:13 AM »
I bought this 1948 350 Manx a couple months ago ,,,,,, not street legal of course but because the previous owner who had it for 3 yrs. never tried to start it there was no way I was going to let that happen to me. Why have it ,, No kicker ,, just bump it or roller starters ,,,,,, found a friend who has one and he lives out in the country with a nice long newly paved road ...... we figured out how to start it and now I can say I've ridden and own a Norton Manx ..
It's loud and light weight ,,,,, brakes suck ,,,, and won't idle with the remote needle type carb but it likes to spin up the rev's

TMS

Offline SoCV

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Re: Norton Manx
« Reply #5 on: January 19, 2022, 01:39:30 AM »
 ^^^Nice Garden Gate Manx  :thumb:
 
 Dusty
 
Almost 900,000 in a little over 8 years in two .

RIP Mike Prentice

Offline huub

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Re: Norton Manx
« Reply #6 on: January 19, 2022, 02:35:56 AM »
probably the most beautiful motorcycle ever made.
now the only thing left to do is to win the lottery.

Offline cliffrod

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Re: Norton Manx
« Reply #7 on: January 19, 2022, 08:33:21 AM »
I expect there's gobs of legalities & red tape & concerns about old tires and such, but one would think that even a tame tour or pass along the front straight of the actual Indianapolis Motor Speedway would have been a no-brainer for the test ride marketing video....

Super cool bike, even if trying to street ride it is akin to doing the same with a real XR750.
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Re: Norton Manx
« Reply #8 on: January 19, 2022, 06:47:15 PM »
Oh she sounds ready to rock. A shame there was not enough room to come on the cam. Barely had the clutch fully disengaged with that tall gearing. (The brits thought of it that way back then. Makes sense to me.) Another 500 rpm and she would have started to sing.

Offline Scout63

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Re: Norton Manx
« Reply #9 on: January 19, 2022, 09:25:51 PM »
Some absolutely useless information about the Manx motor . In the repair manual the torque spec for the crankpin nut stated something like "weld a one and 1/2 inch socket to the end of a 6 foot long bar" . Read somewhere that the average Englishman in the 1950s weighed 150 LBs , meaning the torque spec was 900 lbs feet  :shocked:

 Dusty

Like timing a Matchless heavy single using a pencil and measuring tape.
Ben Zehnder - Orleans, MA USA

Online Muzz

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Re: Norton Manx
« Reply #10 on: January 20, 2022, 01:44:21 AM »
Like timing a Matchless heavy single using a pencil and measuring tape.

I always used the straw, TDC and a piece of cigarette tissue in the points with the lever on full retard on mine.  Seemed to work. <shrug>
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Online Dukedesmo

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Re: Norton Manx
« Reply #11 on: January 20, 2022, 05:08:28 AM »
Nice  :thumb:


My Dad had one of these back in the '50s (before I was born), unfortunately he got rid of it shortly after marrying my Mother as it was 'decided' that racing was not for a married man, especially after a crash landed him in hospital.


I don't suppose he got a lot for it back then, if only he'd kept it and left it to me...   :sad:
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Online tazio

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Re: Norton Manx
« Reply #12 on: January 20, 2022, 05:20:03 AM »
Some absolutely useless information about the Manx motor . In the repair manual the torque spec for the crankpin nut stated something like "weld a one and 1/2 inch socket to the end of a 6 foot long bar" . Read somewhere that the average Englishman in the 1950s weighed 150 LBs , meaning the torque spec was 900 lbs feet  :shocked:

 Dusty
When I was a youngin' I saw those lines on a torque wrench for "Newton Meters", I asked an old guy what a Newton meter was. He calming explained that it was "the weight of one Newt on a bar one meter long.".
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Redrider

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Re: Norton Manx
« Reply #13 on: January 20, 2022, 08:26:29 AM »
I always used the straw, TDC and a piece of cigarette tissue in the points with the lever on full retard on mine.  Seemed to work. <shrug>
And a matchbook was used to set the gap.

Offline blackcat

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Re: Norton Manx
« Reply #14 on: January 20, 2022, 08:40:21 AM »
"This bike is a gift at anything under twenty five grand..."

Can't imagine it would sell for anything below $25K but I'd be tempted if it looked like it was headed in that direction. It should be in the $50K and above territory given its condition, etc.
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Online Muzz

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Re: Norton Manx
« Reply #15 on: January 20, 2022, 03:38:00 PM »
And a matchbook was used to set the gap.

I found once while on the road that my thumbnail worked pretty well.

The manual advance was really good in that respect; amazing how attuned your hearing can be in regards to timing and how you could tweak it on the fly.
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Offline ScepticalScotty

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Re: Norton Manx
« Reply #16 on: January 21, 2022, 10:32:45 AM »
Dad had a pre-war International that he bought off Harry Hinton. It was a rocket........
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Offline larrys

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Re: Norton Manx
« Reply #17 on: January 21, 2022, 01:21:33 PM »
And a matchbook was used to set the gap.

Matchbooks are .020". If you can find one today.
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Offline Scout63

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Re: Norton Manx
« Reply #18 on: January 21, 2022, 02:36:56 PM »
Watched a fella do that once , not a skill I ever developed . Do know how to use the "buzz box" method  :laugh:

 Dusty

It’s not hard Dusty. You roll the piston to TDC, then drop in something straight and sturdy, like a pencil.  Mark the pencil at the level where it comes out of the hole.  Then remove the pencil and measure down the pencil what the manual says, usually in leagues, or rods or chains.  Drop the pencil back in and roll the piston back down til the new mark is at the hole level.  That is where you set the points on the magneto to open.

A buzz box is the bees knees for figuring where the points open.   Mine was unusually expensive for what I got, and now does absolutely nothing.
Ben Zehnder - Orleans, MA USA

Offline SED

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Re: Norton Manx
« Reply #19 on: January 21, 2022, 11:40:22 PM »
Dad had a pre-war International that he bought off Harry Hinton. It was a rocket........
International is better than a Manx because you can ride it on the street too.  Pre-war Inter (girder-rigid or girder-garden gate) is a dream bike. 

I'm a newby - who is Harry Hinton?
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