Interstate Rebuild_Brit303

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Have registered at PhotoBucket.com. So photos may be forth coming prior to hunting season but no promises. And have recovered from the sticker shock of new pipes & mufflers ... Wonder if Lewis Leathers are still around?

The rebuild is a 1973 Norton Interstate. Bought as a Paul Dunstall Conversion in August 1975 in Red Deer, Alberta at Turple Brothers Motorcycles. Same day I purchased Roger Lovin's book on surviving as a nomad. Rex Turple really didn't want to part with the machine. He was hobbling around the showroom on crutches at the time ... Blood red, black and chrome. The bike, not Rex.

Rode around Edmonton for three weeks and then left for the east coast on Labour Day weekend. That proved to be a bit of an adventure. Think a Norton twin vibrates a bit, eh? Well, so did the Lucas recifier... fell apart just outside Tre Riviere, Quebec at three AM one morning ... or the metal ferrels on the plastic fuel lines that loosened in the parking lot one sunny afternoon in London, Ontario. Neat little puddle on top of the very warm crankcase ... and it wasn't water as the sun was shining.

I'm thinking braided steel lines for everything. Gooseneck heater pipes. Possiblly rearset pegs with flat handlebars. Very much doubt my back or knees will allow rearset pegs but the handling is sooo much snapier in the "the position". The original Dunstall pattern clip-on bars had a funny compound angle to them that not only caused the bars to bump the fairing cut outs but really caused a lot of forarm strain at the time. And the Dunstall double seat had very little padding over the two frame rails ... perhaps I should just buy a large bottle of single malt and lay back on the couch and forget this rebuild nonsence, and get on with watching the movie, "The Long Way Around".

Talk at you later!
 
Brit303 said:
Wonder if Lewis Leathers are still around?

Yes, and you'll pay dearly. Ever check the British Pound to the Canadian dollar? Last time I checked about a year ago a Dominator jacket was around $1100 CAD by the time it got over then. Slap GST on that and the plan went right out the window. Buy a Vanson and get 2 for the price of 1.
 
Welcome, 303.

I and just about every one else here anticipate some nice photos. As to low bars and clip-ons, I still have a couple of bikes with 'em, but my back, hips, knees, shoulders, elbows and wrists are more and more significant considerations as I cruise leeward of 50.
 
Brit303 said:
...perhaps I should just buy a large bottle of single malt and lay back on the couch and forget this rebuild nonsense, and get on with watching the movie, "The Long Way Around".

The rebuild will be worth it in the end 303, believe me. Yours has got to be significantly easier than mine has been, seems like I've made a bike entirely from spare parts some days! Stick with it.
 
I believe I paid less than a hundres bucks for a custom jacket, Hailwood zip up boots and very neat set of gloves from Lewis Leathers ... course that was 1968 or so ... funny how prices change with the Milenium.
 
The Dunstall lower fairing, fuel tank, rearsets, two into one into two header pipes and other bits and pieces were supposed to be stored at a former friends place ... he isn't answering his phone so we may be having a bit of a dust up but most of these items aren't of much use for the intended rebuild anyway.

The two into one and back to two exhust system was too loud for riding 10 hours a day and a royal pain in the behind when trying to change the engine oil. The whole system had to loosened and dropped to access the filter. And who wants to wait for the pipes to cool just to unscrew an oil filter ?

The Dunstall Fairing fiberglass was around a good .250" thick, compared to the Ian Kennedy paperthin product.

The Dunstall seat should have stayed in England, mostly because it was designed to look like a road racing seat and one could distinctly feel both upper frame tubes pressing on one's thigh bones after a about two hors as I recall.

The Dunstall front fender looked good and was the same quality as the fairing and tank but I'd rather have the chrome fenders back now.

The Dunstall rearsets were well designed as I recall but alas rearsets are for racers and teenagers, not decrepit retreads like myself. Pass the whisky.
 
Just glanced at Lewis Leathers ... $1870.00 canadian dollars before any taxes or duty for gloves, boots and jacket. Don't even consider trying to duplicate what I had ... perhaps Treen Leathers in Edmonton will be getting some business.
 
Brit303 said:
Just glanced at Lewis Leathers ... $1870.00 canadian dollars before any taxes or duty for gloves, boots and jacket. Don't even consider trying to duplicate what I had ... perhaps Treen Leathers in Edmonton will be getting some business.

Quality leather has taken a jump in price over the last two years. Checking back on a Schott and vanson I bought two years ago, both jackets have risen at least $100 each in price. I lusted after some Lewis boots as well but the price of admission is crazy.
 
Coco said:
Brit303 said:
Just glanced at Lewis Leathers ... $1870.00 canadian dollars before any taxes or duty for gloves, boots and jacket. Don't even consider trying to duplicate what I had ... perhaps Treen Leathers in Edmonton will be getting some business.

Quality leather has taken a jump in price over the last two years. Checking back on a Schott and vanson I bought two years ago, both jackets have risen at least $100 each in price. I lusted after some Lewis boots as well but the price of admission is crazy.

All things considered, have you priced out hockey equipment lately? $1800 for motorcycle safety equpment seems cheaper than outfitting yourself in new hockey gear. Quality goalie pads alone are around $1000 so in retropsect, the Lewis prices are not so bad.
 
FRAME COATINGS: as I understand it I have several alternatives: (1) PAINT as per original factory, some sort of enamal or Imtron ? aircraft paint. Relativily cheap and easy to touch up nicks. Easily masked off, Medium thickness and easy to control. (2) POWDER COAT, Expensive, limited colors, signifigant thickness buildup requirering careful masking or chipping. Difficult to touch up small nicks. (3) Industrial HARD CHROME process. Expensive. Possible thickness buildup (how did the original Matisse frames get around this problem?). Very corrosion resistant! Looks nice. (4) PARKERIZE - difficult to find large enough tank to submerse entire frame. Chemicals are corrosive and require heat to work with. Difficulties from a practical stand point as lots of outdoor room and tank fabrication required with a heat source. Coating is very thin, on order of a few thousands of an inch but Parkerization holds oils in it's porous surface and looks differend, sort of a charchole or deep grey matt colour. Parkerizing is not completely rust proof and can be scratched or worn off and is hard to touchup. (5) GUNCOTE - commericial trade name for a spray on coating for firearms. Must be baked at normal oven temperatures (300 F) but is thin, 0.003" to 0.005", very hard and durable and can be touched up without having to redo the whole frame. About the same cost as enamal paint but some sort of temporary oven would need to be built. Colour selection is limited but not bad.

Has anyone experiance with the pros & cons of different coatings for the frame? Any other suggestions?
 
QUESTION: The serial # indicates my beast is not a Mk. III but is a 1973 model ... what are the SIGNIFEGANT DIFFERENCES BETWEEN the Mk. I, Mk. II and Mk. III models? I know the Isolastics were modified somewhere along the line but I will be going with after market Isos anyway. Will also upgrade the alternator to the 180 amp output unit as I intend to fit a quartze 60/55 headlamp.
 
Pause for thought ...

Make: NORTON Model: 850 COMMANDO - Model Year: 1973 - Mfr's Report Date: MAR 28, 1974
NHTSA CAMPAIGN ID Number: 74V052000
Component: SUSPENSION:REAR:SHOCK ABSORBER

POSSIBILITY THAT THE TOP OR BOTTOM GIRLING REAR SUSPENSION UNIT MOUNTING FERRULE MAY DETACH IN SERVICE, CAUSED BY UNINTENTIONAL FITTING OF BONDED RUBBER-TO-METAL INNER SLEEVES OF INSUFFICIENT LENGTH. IF THIS CONDITION EXISTS, THE RESULT IS THAT THE FERRULE AFFECTED IS RIGIDLY CLAMPED AT THE MOUNTING, AND NORMAL MOVEMENT OF THE REAR SWINGING ARM MAY CAUSE FERRULE TO DETACH.

-------------------------------------------------------------------

Make: NORTON Model: COMMANDO - Model Year: 1974 - Mfr's Report Date: JAN 08, 1974
NHTSA CAMPAIGN ID Number: 74V010000
Component: FUEL SYSTEM, GASOLINE: DELIVERY:HOSES/LINES/PIPING AND FITTINGS

POSSIBILITY THAT THE PLASTIC FUEL LINE ASSEMBLY MAY BE INCOMPATIBLE WITH GASOLINE AND MAY POSSIBLY CAUSE DISINTERGRATION OF THE FUEL LINE.

----------------------------------------

Make: NORTON Model: COMMANDO - Model Year: 1975 - Mfr's Report Date: FEB 19, 1975
NHTSA CAMPAIGN ID Number: 75V040000
Component: SUSPENSION:REAR:SPRINGS

POSSIBILITY THAT EXCESS WELD BUILD-UP ON THE SUSPENSION UNIT BODY LOWER SEAM WELD MAY FOUL THE REAR HYDRAULIC BRAKE CALIPER MOUNTING BRACKET. SUCH CONTACT WOULD NULLIFY THE ISOLATING EFFECT OF THE LOWER MOUNTING RUBBER BUSHING, PLACING AN UNDUE STRAIN ON THE LOWER MOUNTING FERRULE AND POSSIBLY RESULTING IN ULTIMATE FRACTURE.

------------------------------------------------------

See "National Highway Traffic Safety Administration" at < http://www.recalls.gov/nhtsa.html >
 
Brit303 said:
QUESTION: The serial # indicates my beast is not a Mk. III but is a 1973 model ... what are the SIGNIFEGANT DIFFERENCES BETWEEN the Mk. I, Mk. II and Mk. III models? I know the Isolastics were modified somewhere along the line but I will be going with after market Isos anyway. Will also upgrade the alternator to the 180 amp output unit as I intend to fit a quartze 60/55 headlamp.

This is documented thoroughly elsewhere in this forum, but on a basic level:

73 was the first year of the 850, factory silver cylinders, the MKI.
74 had an improved swingarm (and maybe other minor changes), black cylinders. Also the MIIA (mostly European market) with a new air filter assembly and mufflers, for noise reduction.
75 saw the MKIII with electric start and rear disc brake, and vernier isos. This was the most significant model change overall.

Mine is a MKII, build date 8/74
 
hey Brit303!

just read a few lines about Lewis Leathers....i am a absoltuely fan of Lewis Leathers jackets. Bought a GT Monza some years ago at the staples market in Camden London at High Star Classics.
Have to say that the style of these jackets is unique and the qaulity is fine. have a look at this site: http://www.hi-star.co.uk/
has always a large range of jackets.
if you want a jacket in the padded style on shoulders and elbows like the GT Monza or Phantom, but want it a bit cheaper then search after Wolf Leathers or TT Leathers from the late 70ies to 80ies.
they are much cheaper, but got also this english style.

have a nice day
chris

just to put in something about motorcycles

...to something completely different

watch at 3:40
http://www.youtube.com/watch?v=Ygy7UDADXDg
 
$410.00 Cdn. vs $199.95 Cdn. if bought locally for set of 850 Interstate header pipes ...

Bike is a Mk II, front dis - rear drum - black cylinders, originally set up as a Dunstall cafe racer. I am trying to determine what the original model was but have yet to hear back from the dealer and since I bought this bike used in 1974, we may never know for sure.

Can't see much benefit in going with the Factory correct balanced pipes as these tend to crack at the connector pipe/header junction.

I want to restore as Interstate model with the low goose-neck pipes. And fabricate frameing for detachable hard saddle bags as I understand this was an original factory concept that never got to market. I may have to go custom route with Viking ... I like his work but the cost may scrap the whole project.

Nortons can be an expensive habit ... as can firearms ... girls ... photography ... most anything interesting ....
 
Chris Zet said:
hey Brit303!

just read a few lines about Lewis Leathers....i am a absoltuely fan of Lewis Leathers jackets. Bought a GT Monza some years ago at the staples market in Camden London at High Star Classics.
Have to say that the style of these jackets is unique and the qaulity is fine. have a look at this site: http://www.hi-star.co.uk/
has always a large range of jackets.
if you want a jacket in the padded style on shoulders and elbows like the GT Monza or Phantom, but want it a bit cheaper then search after Wolf Leathers or TT Leathers from the late 70ies to 80ies.
they are much cheaper, but got also this english style.

have a nice day
chris

just to put in something about motorcycles

...to something completely different

watch at 3:40
http://www.youtube.com/watch?v=Ygy7UDADXDg

There is also Aero from Scotland. There is a USA dealer that sells on ebay and the prices are good compared to buying direct as the conversion to pounds sterling will knock your socks off.
 
Brit303 said:
Nortons can be an expensive habit ... as can firearms ... girls ... photography ... most anything interesting ....

You got that right. I had a home recording studio for a while that made buying Norton bits seem like paying for bubble gum.
 
Maylar,

Haven't been able to find any particular article on the differences between Mk. 1, 2, 2A and 3 Commandoes other than bits and pieces on various web sites. Searching this list brings up nothing. Where, or under what heading, do I look?
 
My 1973 Norton, serial 303***, almost qualifies as a an "Official" Retread in it's own right ... wait a minute... that makes me ... OH MY GAWD!
 
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