speedo drive question

MikeG

Mikeg

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May 31, 2012

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1,364

• Jan 8, 2020

• #1

Should the speedo drive be locked tight and unable to rotate at all with the axle tightened up?

 

maylar

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May 13, 2007

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4,213

• Jan 8, 2020

• #2

Yes.

 

MikeG

Mikeg

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• Jan 8, 2020

• #3

Thanks-I ask because I installed a replacement unit from Andover on an Atlas I'm working on and it will spin after the axle is tightened. My Commando will not. I had no old one off the Atlas, and I'm thinking that the tophat bushing is missing. Was not aware it needed one as I had noting to compare it to.

 

ILLF8ED

Joined

Dec 30, 2003

Messages

3,691

• Jan 8, 2020

• #4

Looked at my parts list for 1966 to 1968 Norton. Listed speedometer gearbox spacer for Atlas part number 13270. I don’t have a new part number conversion, but at least can confirm a spacer is required.

 

gortnipper

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Nov 11, 2013

Messages

5,403

• Jan 8, 2020

• #5

https://andover-norton.co.uk/en/shop-details/17202/speedo-drive-spacer-nm-13270-b2-660-

Not sure what year yours is

 

ILLF8ED

Joined

Dec 30, 2003

Messages

3,691

• Jan 8, 2020

• #6

gortnipper said:

. The part number at Andover agrees with my parts book. Looks like a match.

https://andover-norton.co.uk/en/shop-details/17202/speedo-drive-spacer-nm-13270-b2-660-

Not sure what year yours is

Click to expand...

 

texasSlick

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Jan 2, 2013

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4,258

• Jan 8, 2020

• #7

That top hat spacer is vital to center the Speedo drive, as well as provide proper spacing!

Slick