Skip to main content
English French German Italian Spanish

1952 ES2 rear wheel offside distance piece

Forums

I think I have an incorrect distance piece on the offside of the rear wheel. With the drive side nut tight there is a gap of approx 1/4 inch on the offside. By tightening the offside nut I can loose this gap but I must be putting excess side load on the aluminium slider, also the wheel spindle has greater engagement in the wheel nut than the drive side which makes me suspect something is not right. Would someone like to lay a measuring stick between the inner side of the aluminium slider and the face of the Speedo drive and let me know what they find with the wheel nuts tight. In a swinging arm frame this isn't quite the problem it could be with two vertical sliders. John

Permalink

Hi John, mine measures 3/4", it's a cotton reel shape and the wheel slides in just snug with no pull up of spare room. I could post a photo if you need one.

Adam

Permalink

Hi Adam. My wheel has the cotton reel spacer but have also added a 4mm wide washer to make up some of the slack, it could do with more. I notice in the 1950 parts book, page 56, it show it as part number 36 but also what appears to be a longer one, part number 37, but there is no reference to it in the description. Still confused. John

Permalink

...I see what you mean. Been looking in my parts book, there seems to be two S.38's with different part numbers, could be a mistake in the book and the S37 is what your bike needs. Maybe. I'm sure that's occured to you, perhaps the solution is this; bearing in mind that the datum point is the alignment of the chain and assuming your frame isn't bent or twisted, then all you need is the correct length of spacer, a simple job for a man with a lathe. Judging by the book ,there are three possible spacers and we've got the shortest. Perhaps it fits mine because of the hub/other spacers I have on mine. I have loaded a pic of mine for reference if it's any help.

Adam

Attachments
es2rear-axle-jpg

Permalink

Well Adam, 'A picture paints a thousand words' My bike has a 'modern' replacement speedo drive gearbox which looks thinner than the origional one on your machine. I wonder if thats where the difference is? Many thanks for the pic. What part of the country are you? I'm near Peterborough. Regards John

Permalink

Hi John, I'm in High Wycombe, Bucks. The speedo drive seems like the smoking gun, but not for sure. It's only the thickness of the case of the drive which adds to the space, if you follow me, and the internal spacer S32 is what stops the whole drive from clamping up solid, allowing the drive ring to spin, and if your speedo works OK then you'd assume that was correct. However....wrong drive....different shape....must be it...?

Permalink

Previously john_tickell wrote:

I think I have an incorrect distance piece on the offside of the rear wheel. With the drive side nut tight there is a gap of approx 1/4 inch on the offside. By tightening the offside nut I can loose this gap but I must be putting excess side load on the aluminium slider, also the wheel spindle has greater engagement in the wheel nut than the drive side which makes me suspect something is not right. Would someone like to lay a measuring stick between the inner side of the aluminium slider and the face of the Speedo drive and let me know what they find with the wheel nuts tight. In a swinging arm frame this isn't quite the problem it could be with two vertical sliders. John

I had this problem on an 88. All the "foreign" speedo drives need a spacer entering from the outside of the drive and then your spacer if correct should be ok. Regards, Roger.

Permalink

Previously roger_wilson wrote:

I had this problem on an 88. All the "foreign" speedo drives need a spacer entering from the outside of the drive and then your spacer if correct should be ok. Regards, Roger.

That is interesting. I used a 4mm wide washer to make up the difference.

I wonder what the design dimension was origionaly between the two vertical sliders and what tolerance Norton applied to it. Do such drawings still exist? John

 



© 2024 Norton Owners Club Website by 2Toucans