Ooh! A package has arrived from CNW.

How long did it take from order to arrival? I'm waiting on some stuff that I ordered almost a month ago and haven't heard anything yet
 
MichaelD said:
How long did it take from order to arrival? I'm waiting on some stuff that I ordered almost a month ago and haven't heard anything yet
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Shipped on 16th Feb, arrived 28th Feb.

If yours has taken that long, I'd bet it's stuck in customs entering the UK :(

I'd chase up the PO quoting the tracking number.
 
Bonzo said:
Shipped on 16th Feb, arrived 28th Feb.

If yours has taken that long, I'd bet it's stuck in customs entering the UK :(

I'd chase up the PO quoting the tracking number.
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Thanks Bonzo, the original email said they would give me a tracking number once it ships, and I haven't seen anything since the order confirmation, so it looks like its still in Colorado :(
 
I installed the Comstock/CNW head steady on my 1972 Combat years ago.
Nice upgrade. I wondered about the lifespan of the rose/heim joint but so far so good.
I didn't know that a "suspender spring" could be installed with this?
 
Yes, note the last few lines in the instructions. Maybe worthwhile as these headsteady's limit left/ right movement and weight of engine/cradle will be on the lower ISO's after installing this. I installed this unit when Jim Comstock first offered it and haven't noticed any additional vibration since. My lower ISO's are OEM, not upgraded to vernier yet.
 
Stephen Hill said:
I installed the Comstock/CNW head steady on my 1972 Combat years ago.
Nice upgrade. I wondered about the lifespan of the rose/heim joint but so far so good.
I didn't know that a "suspender spring" could be installed with this?
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I installed the spring on my cNw built 850.
Goes on easily. Tension the spring until the lower front iso thru-bolt slides back-and-forth easily.
Means you don't have any downward force on that iso.
Cheers
 
Just reflecting on my post #12 above.
I've often thought it would be nice to have a similar spring, pulling up between the oil tank and battery, to relieve the pressure on the rear iso. Yes, I'm aware of valve springs operating from below (jim?) but I like the idea of an adjustable tension spring.
Cheers
 
cliffa said:
Bonz, do you already have the suspender device (spring)? If not, it's probably worth fitting while you're replacing the head steady.
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Not being a nortoneer for as long as most, what’s the whole deal with the spring? My 71 didn’t have one on the old setup- is it just for iso longevity? Cool factor? Or is there some vibration magic I don’t understand going on there…. Seemed superfluous to me, but I’ve been on the losing side of ignorance more often than not! 🤪
 
tompkins said:
Not being a nortoneer for as long as most, what’s the whole deal with the spring? My 71 didn’t have one on the old setup- is it just for iso longevity? Cool factor? Or is there some vibration magic I don’t understand going on there…. Seemed superfluous to me, but I’ve been on the losing side of ignorance more often than not! 🤪
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Haha, that makes two of us😁.

The spring was introduced on the MkIII Commando when they added the extra weight of the electric start to the engine. Many folks now use it on their kicker only bikes as well, as it relieves some weight off the front ISO.
 
If you take apart old isolastics, you often find the rubber "doughnuts" are egg shaped. This can change the dampening characteristics of the rubber, transmitting more vibration from the engine to the cycle parts.
 
Yup. People have found that when they removed the rubber isolastics from their 50-60 year old machines, the 50-60 year old rubber was misshapen. So they add springs to make the replacements last longer… 🤓
 
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