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Technical Section / Re: Layshaft Prpblem
« Last post by camman3 on Today at 08:37:11 PM »
If your sprocket is the same in every other dimension except the length, then you probably have the rare as hens teeth sprocket that was fitted to '39 c10 only.
Has it got a oil return spiral around the boss?….I had to modify a 40,s on sprocket for mine.
Graham
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Technical Section / Re: Layshaft Prpblem
« Last post by terryb on Today at 08:29:13 PM »
Cheers Owen, the 1.25" width makes sense. I obviously need the correct sprocket.
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Technical Section / Re: Layshaft Prpblem
« Last post by Owen on Today at 08:14:50 PM »
Here are the dimensions for the 1940 onwards 3 speed gearbox sprocket.

Overall length 1.25", 1 1/4", 32.02mm
Boss length 0.979",(approx 63/64"),24.88mm
Boss outer diameter 1.5", 38.04mm
Boss major bore diameter 1.130" (approx 1 9/64") 28.71mm
Major bore depth 0.756", 3/4", 19.21mm
Boss minor bore diameter 1.005" 25.53mm
Minor bore depth 0.500", 1/2"
Between spline dimension 0.258" 6.55mm
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Technical Section / Re: Layshaft Prpblem
« Last post by terryb on Today at 06:43:58 PM »
I've just measured my sprocket and it is 1" wide, can anybody tell me what the correct width should be please? Obviously the one I have fitted is incorrect, it's too short.
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Technical Section / Re: Layshaft Prpblem
« Last post by terryb on Today at 05:12:50 PM »
Ok Guy's, made a new w/key and fitted Layshaft, key dimensions to follow.

Can anyone tell me how the gearbox sprocket is locked into place? After assembling sleeve pinion and gearbox sprocket there is about a 1/8" of spline exposed. Therefore when you fit the tab washer and nut, the sprocket can slide in and out by this amount. Am I missing something?)
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Technical Section / Re: Wheelbearings
« Last post by C11Andy on Today at 10:02:17 AM »
Draganfly do a taper bearing conversion for cup and cone front wheels
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Technical Section / Re: Long running problem - advice sought
« Last post by alangraham on Yesterday at 09:42:09 PM »
With thanks to all who've responded especially Johnboy, I've ordered a type 5 needle from Hitchcocks and will let you know how I get on.
Thanks
Alan
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Technical Section / Re: Wheelbearings
« Last post by Owen on Yesterday at 08:59:35 PM »
The trick for the, taper roller conversion is to get the correct outer diameter and larger inside diameter. You can then make up a modified cone to fit the larger internal diameter.
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Technical Section / Re: Wheelbearings
« Last post by ThomasC11 on Yesterday at 08:47:26 PM »
Hi Sidevalve!

Quote
Not sure why a taper roller bearing would be an advantage.

The problem is to get a matching bearing at all. These 11590/11520 taper bearings just match well. I didn't find a matching roller bearings. But it seems that Gordon found some.

Quote
The C11G runs normal 'modern' bearings anyway not as far as I know cup and cone so why ?

Gordon wrote about a "carrier" which I translated into "cup" (and "cone").  And that must be the front wheel, as Owen already said.

Cheers, Thomas
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Technical Section / Re: Wheelbearings
« Last post by GordonH on Yesterday at 07:07:24 PM »
I will do that when I get them and am certain they are the right fit.
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