1973 850 Rebuild

L.A.B.

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So far so good ...........except nothing that resembles this spoke with this bend radius came off the rim;
https://andover-norton.co.uk/en/shop-details/16176/spokes-per-10-9-gauge. The 10 removed from the rim had a much tighter bend radius
and I'm lost with how to proceed. Thank you

That should make it the LH (so non-disc side inner) spoke. The spoke in AN's photo looks correct so I think a photo of the old LH inner and new spoke heads together could be useful.
 

L.A.B.

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First photo.
To me, the spoke marked "non-disc inner" looks more like a non-disc outer and the one marked "non-disc outer" is the inner.

Second photo, left to right, 1,2,3,4, in my opinion, would be:

1."Long" = non-disc outer (8 1/8", 100°, long bend)
2."Long" = non-disc inner (8 1/8", 75°, short bend)
3."Short" = disc inner (7 7/8", 80°, short bend)
4."Short" = disc outer (7 7/8", 90°, long bend)

I assume all the new 40 spokes are the same gauge, as the originals were heavier 8 SWG (0.160") gauge on the disc side and 9 SWG (0.144") on the non-disc side) with 20+20 nipples.
 

Mofosheee

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First photo.
To me, the spoke marked "non-disc inner" looks more like a non-disc outer and the one marked "non-disc outer" is the inner.

Second photo, left to right, 1,2,3,4, in my opinion, would be:

1."Long" = non-disc outer (8 1/8", 100°, long bend)
2."Long" = non-disc inner (8 1/8", 75°, short bend)
3."Short" = disc inner (7 7/8", 80°, short bend)
4."Short" = disc outer (7 7/8", 90°, long bend)

I assume all the new 40 spokes are the same gauge, as the originals were heavier 8 SWG (0.160") gauge on the disc side and 9 SWG (0.144") on the non-disc side) with 20+20 nipples.
Yes, all of the new spokes are the same gauge. The difference in gauge on the older spokes was noted. I'll lace it up loose to see what happens. (all the while anticipating problems due to that one spoke in question) Thanks for the help!
 

Mofosheee

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Before I lace, thought I'd check hub for run out. Finding 0.070" @ 180 deg. .............is there a limit? Thank you
 

Time Warp

.......back to the 70's.
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Before I lace, thought I'd check hub for run out. Finding 0.070" @ 180 deg. .............is there a limit? Thank you

It is not unusual for the hub casting to run eccentric to the bearing bore.

Once laced its what it is but the rim would be running with the bearing.
I would not recommend lacing a disc front unless you have a lot of patience and/or experience due to the illogical rim offset but go for it all the same.
 

Mofosheee

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It is not unusual for the hub casting to run eccentric to the bearing bore.

Once laced its what it is but the rim would be running with the bearing.
I would not recommend lacing a disc front unless you have a lot of patience and/or experience due to the illogical rim offset but go for it all the same.
Understand and appreciate your recommendation and uniqueness of rims. But....no guts, no glory :)
 

L.A.B.

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In my world I would regard it as attention worthy. But I don't know sheet about Norton's

Did you check the spoke holes for runout as that would be the logical thing to do rather than checking the flange rim?
 

Mofosheee

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Considering that the bike came like this, no telling what went where. https://www.dropbox.com/preview/Dropbox Transfer files/IMG_20200707_091322_476.jpg?role=personal. Received a pair of Andover stanchions. On appearance, the externally oxidized sliders showed no signs of internal corrosion or physical damage. When attempting to assemble, neither stanchion would insert into either slider. Yet, these sliders will reluctantly mate up (force fit) with the old stanchions. I'm not going to force the issue.
Both new and old stanchion lower bushes measure = 1.50". Further measurements indicate that I have a slider out of round issue.
Searched the forum looking for answers.................nothing found. I ask, what's wrong with reaming the sliders and making up new lower bushes?
Thank you again.
Happy New Year!
 
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L.A.B.

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Once again, the image isn't viewable ["Please sign in or register to access this page."] so the link needs changing to 'public'.
 
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Mofosheee

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On appearance, the externally oxidized sliders showed no signs of internal corrosion or physical damage. When attempting to assemble, neither stanchion would insert into either slider. Yet, these sliders will reluctantly mate up (force fit) with the old stanchions. I'm not going to force the issue.
Both new and old stanchion lower bushes measure = 1.50". Further measurements indicate that I have a slider out of round issue.
Searched the forum looking for answers.................nothing found. I ask, what's wrong with reaming the sliders and making up new lower bushes?
Thank you again.
Happy New Year!
 
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