TW wrecks a perfectly good Commando etc.

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sft.jpg
 

gortnipper

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This was mine. Sorry for the bad pic, it was in a zip lock and only took a photo to remind me to buy a new one.

Not many have seen one like this. Almost good to know I am not unique.

col-jpg.2040
 

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It was like that when I got the bike, I guess that wasn't the sweet spot.

The central bush is wider so its not like it can be stopped from rolling under normal conditions, vibration/harmonic induced perhaps.
 

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Who knows. My cam looked.like your roller on one lobe too. A big hang nail.
 
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Who knows. My cam looked.like your roller on one lobe too. A big hang nail.

This was the cam I removed from the Moto Guzzi, they can wear on one lobe but this one was good.
How much torque ( DPO with a rattle gun ?) does it take to split a M16 thread on a steel cam.

Camshaft - Copy.jpg

I was lucky enough to find a NOS cam in the USA with the revised oil feeds.

IMG_4045 - Copy.jpg



#
I finally got around to lifting the 850 (or most of it) off the work bench (not work table)
Of course when I rolled the crane up to it the legs hit the bench and the end of the jib was a long way from the bike.
Happy to say with some inventive rigging and shimmying the bulk out toward the jib on a piece of 140 x 19 hardwood decking timber at the two bench corners got it done and it is safely on the ground ready for its wheels again.
 

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That was only the beginning, a multi decade Moto Guzzi mechanic had not seen a set of final drive gears this bad.
New one's were only $799.

273.JPG 274.JPG

How about running the chrome bore until the rings make a groove in the alloy of the cylinder at TDC.

Cylinder Wear.JPG

Get lemons, make lemonade, all it took was a 1000 hours or so, overtime and $20k (no paint or chrome)
Once you go through old bikes they are fine, Norton's are no different, if they are not reliable, the reason why is in the closest mirror.
 

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Wow, ordered late Monday night and here a day and half later at a third the cost of new ones.
No need to modify the ones from the RH10 to 32 mm to suit the FA cylinder head now.

Thanks BritCycle.

mani.jpg
 

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I am/was fitting my AUS$ 100 / US$ 77.82 / £ 55.79 NOS TEX ViewMasters and no wonder they will not screw into the clutch perch, there is no thread, just a hole.
I measure the stems at 3/8" and 24 TPI, would that be 3/8 UNF ?

TEX1.jpg


TEX2.jpg
 

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3/8 UNF

(in)Threads per inch (tpi)Major Diameter
3/8" - 24240.375

There should be threads, the stock ones have them.

9d25f360b4d10f9aa962ae23c79ceff0.jpg
 

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there is no thread, just a hole.

There is enough length of thread on the stem to fit the thin nut (and washer) shown in AN's picture although personally I'd cut a little extra thread on the stem if necessary and fit a thin lock nut.
 
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The alloy seat knobs are 3/8" UNF and fix well with a helicoil, have fixed a MK2 master cylinder mirror hole with same kit so clutch perch must be fixable same way.
 

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I should have said an un tapped hole that I can tap. (around 8 mm) but do not have a 3/8 UNF tap so will get one after the weekend and a half nut for the clutch side stem.
Google says the tapping drill is 8.5 mm for 3/8 UNF.
The master cylinder side is fine being threaded as stock.

Even looking at all my spare perches only one ( a drum brake perch) is threaded for a mirror stem, all the others have that small un tapped hole which seems odd.
These are ViewMasters as per the brochures. http://www.classicbike.biz/Norton/Brochures/1970/74NortonBrochure.pdf

Thanks for the replies.
 

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The Africa Twin is ready for departure for pick up of a 3/8 UNF tap.
The TEX mirror supplier just got back to me about two round mirrors so maybe some 'Christina Ricci mirrors are a second option so will get a 3/8 UNF die nut also.
The sun is out on a Winters day.
#
Update.
The perils of the elderly.
25c ( 77f ) so a great ride to the city with one hitch, I forgot it is a public holiday so the tool supply store was shut and also my local-ish bike accessory store.
No tap and die, no fork oil or a query to why my intercom is playing up via the plug and socket. (I never thought the day would come where your phone playing music would also allow incoming phone calls on the road)

It was worth it to see a red and white T160 out and about also in passing.
Try again tomorrow early.
 
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You know what day it is.
The spirit of Phil says ride.

P hog.jpg


I am not really into that rivet counting stuff but went though some boxes this morning and found only two (NOS) 750 hand sets that are tapped 3/8" from the Lucas factory.

sw.jpg


The mirrors on the right are NOS sourced out of the US (not modern replacements) and had thought these present on US bikes only, a pair like them were on my MK2A (from the US) when I bought it.
I can not find the other stem but have to wonder if it has a 5/16" threaded end, it was a surprise to find this stem has a Made in England stamp which voids the US mirror thinking ? (and this style of mirror seems to be seen on a lot of original US bikes (along with TEX ViewMasters)

The stem nut is different also.
stm.jpg


mirror.jpg


Done and the mirrors arrived not long after getting back.

Fork oil x 2 plus a new Intercom head set ordered @ $115.25.
Alloy bar for a sprocket locking tool @ $21.88.
Tap and die with sundries @ $60.01
TEX mirrors @ $89.80.
One litre of Honda HP4 (to add to the 4L I have) @ $19.95.
$306.89.

stf.jpg


An expensive hole and 280 kms, hope that bright red speed camera van never got me.

hle.jpg
 
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