Vernier Iso adjusters

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Derek Wilson said:
If you are going to use a feeler gauge, make sure you check the clearance around the entire periphery of the adjuster, not just one spot. There can be variations in clearance around the circumferance.
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Setting the head steady to a neutral position so that it is not pulling the engine over to one side can reduce any variation.
 
L.A.B. said:
Setting the head steady to a neutral position so that it is not pulling the engine over to one side can reduce any variation.
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Absolutely - but what I was referring to is the fact that the isolastic housing tubes are not always cut squarely from the factory. I trued my front mount in a lathe, but the rear is not so easy...
 
I'm still waiting for a report from someone who has tried the RGM "soft" optional multi piece (as per the original) iso rubbers.
 
Derek Wilson said:
Absolutely - but what I was referring to is the fact that the isolastic housing tubes are not always cut squarely from the factory. I trued my front mount in a lathe, but the rear is not so easy...
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Well, the front one wasn't out of square as far as I could tell when I replaced both Isos. earlier this year.
 
Thanks, that does look a bit of an artist's sketch though! I'll have a go, swearing a lot helps I find
 
FastFred said:
Thanks, that does look a bit of an artist's sketch though! I'll have a go, swearing a lot helps I find
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The 'conversion' adjuster is about 1/8" narrower than the Mk3 type below, but unless you have the wrong gaiters or you are pulling the gaiter off the adjuster collar than I can't see why it should be difficult.

Vernier Iso adjusters

Vernier Iso adjusters
 
I definitely do have Hemmings adjusters, so if somebody would be so kind as to P.M. me a copy of the instructions is would be great.
 
Mine were bought off eBay (Commando Specialties?) 10 years ago. Dunno who made them but I had to get a MKIII front mount. Set them for .01 inch and they buzzed. Backed off one hole at a time until they didn't.
 
L.A.B. said:
Then perhaps something isn't right as adjustment of the Hemmings Iso. is achieved by screwing the adjuster (either in or out) along the threaded sleeve.
Vernier Iso adjusters




Then you should be able to move the grub screw to a different adjuster hole?
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A friend of mine came up with the design way back when. He patented it here in the US and then worked out a deal with Mick Hemmings to market them with the advise of Brian Slark. Kind of a cool set up.
John in Texas
 
N0rt0nelectr@ said:
A friend of mine came up with the design way back when. He patented it here in the US and then worked out a deal with Mick Hemmings to market them with the advise of Brian Slark. Kind of a cool set up.
John in Texas
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Yes, Brian Tyree.

US5639075A - Adjustable locking resilient motorcycle engine mount - Google Patents

A locking, adjustable, resilient mount for mounting a motorcycle engine on a motorcycle frame includes a shaft rigidly connected with the motorcycle frame via a pair of spaced mounting plates, at least one resilient vibration absorbing member arranged on the shaft, a mounting sleeve connected...
patents.google.com
 
I wonder if anybody else will start to make them as I don't believe Mick sells them anymore. I think they're great, although the Allen hex screws could have been made a little larger as they are a bit fiddly to see which hole the screw is actually in.
 
cliffa said:
I wonder if anybody else will start to make them as I don't believe Mick sells them anymore. I think they're great, although the Allen hex screws could have been made a little larger as they are a bit fiddly to see which hole the screw is actually in.
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From what my friend told me about the deal he had with Mick, at first the sold very well but as years went by the number of sets sold went down. I expect that with the limited number of Norton's on the road that had to happen. By that time I expect the patent to have expired, I don't know anything about patents, so it maybe that others might have picked up on there manufacturer?
 
N0rt0nelectr@ said:
By that time I expect the patent to have expired, I don't know anything about patents, so it maybe that others might have picked up on there manufacturer?
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I haven't seen any copies but I think the main reason is the 'Hemmings' adjusters only seem to have been available from a limited number of suppliers (Hemmings, OldBritts) whereas the vernier 'conversion' kits have been available from just about any Norton parts supplier for many years now.
 
I intend to replace them on a MK III where the ones on it are original, and on a MK II 850 where they are also original. What would someone suggest for a product and vendor? I begin with the expectation that none of the existing components are usable , with the possible exception of main bolting. I prefer the isea of vernier, but don't wish to cut any tubes.
 
Super Seven said:
I intend to replace them on a MK III where the ones on it are original,
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Then replace with standard Mk3 parts as it's already 'vernier'.
andover-norton.co.uk

Andover Norton Parts Drawings - Genuine Andover Norton Factory Parts - Commando Parts

Andover Norton Parts are the only Norton spare parts in the market manufactured to original drawings, within the factory-approved tolerances, from the correct materials, and with the correct finish.
andover-norton.co.uk


Super Seven said:
and on a MK II 850 where they are also original. What would someone suggest for a product and vendor? I begin with the expectation that none of the existing components are usable , with the possible exception of main bolting. I prefer the isea of vernier, but don't wish to cut any tubes.
Click to expand...

A pre-Mk3 needs vernier conversion kits. No cutting is required with these kits.
(Front currently out of stock at AN)
andover-norton.co.uk

Motorcycle parts and spares for Norton motorbikes - Genuine Andover Norton Spare Parts - Andover Norton Motorcycles Parts - Original Andover Norton Parts

Motorcycle parts and spares for Andover Norton motorbikes: Andover Norton manufactures and supplies all Genuine Factory Spare Parts for Norton motorcycles built before 2002.
andover-norton.co.uk

andover-norton.co.uk

Motorcycle parts and spares for Norton motorbikes - Genuine Andover Norton Spare Parts - Andover Norton Motorcycles Parts - Original Andover Norton Parts

Motorcycle parts and spares for Andover Norton motorbikes: Andover Norton manufactures and supplies all Genuine Factory Spare Parts for Norton motorcycles built before 2002.
andover-norton.co.uk
 
Have adjusted both front and rear one file looser and will test ride tomorrow morning..
 
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