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Author Topic: cb 550---Anybody know offhand the size of the rear axle nut?  (Read 3875 times)

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Offline elquenada

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cb 550---Anybody know offhand the size of the rear axle nut?
« on: January 23, 2010, 09:52:53 AM »
I dont have a socket big enough to torque down the rear axel nut and I dont feel like buying a whole set.  any idea how large that nut is? I looked in the parts manual and on motogrid's website and the size wasn't listed.

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Offline bk0931

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Re: cb 550---Anybody know offhand the size of the rear axle nut?
« Reply #1 on: January 23, 2010, 05:27:40 PM »
I think i bought a 1 and 1/16 size socket for the rear axle. I know it should be metric but its what i had and i think it worked
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Offline elquenada

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Re: cb 550---Anybody know offhand the size of the rear axle nut?
« Reply #2 on: January 24, 2010, 12:55:22 PM »
thanks. 
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Offline 754

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Re: cb 550---Anybody know offhand the size of the rear axle nut?
« Reply #3 on: January 24, 2010, 01:00:45 PM »
The stock toolbag wrench is easy to use & prevents overtorquing.. six point too..
 Not sure if Honda still sells them, but, I cant see them being  much over 10 bux used.

 Over tightening is pretty hard on adjusters and such..
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Offline MickeyX

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Re: cb 550---Anybody know offhand the size of the rear axle nut?
« Reply #4 on: January 24, 2010, 02:34:49 PM »
Well, if it's not tight, why not just take it in with you and size it up?  :) Or, if it's something that I need to take off, I put an adjustable wrench on it and then measure that with a tape or in relation to another wrench size.

So, what size was it then?  :)
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Offline elquenada

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Re: cb 550---Anybody know offhand the size of the rear axle nut?
« Reply #5 on: January 24, 2010, 03:27:35 PM »
not sure I just hand tightened for now cause I was busy with other things.  i'll pull it off this week and bring it to the store. if what bk0931 says is true than it should be a 27mm.
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Offline chickenman_26

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Re: cb 550---Anybody know offhand the size of the rear axle nut?
« Reply #6 on: January 24, 2010, 04:04:26 PM »
It's 26mm.

Stu
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Offline elquenada

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Re: cb 550---Anybody know offhand the size of the rear axle nut?
« Reply #7 on: January 24, 2010, 06:20:54 PM »
cool.  thanks for the confirmation.
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1975 CB 550

"A veces lo que es contra lo justo
por la misma razón deleita el gusto" 
Lope de Vega

Offline Deltarider

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Re: cb 550---Anybody know offhand the size of the rear axle nut?
« Reply #8 on: January 25, 2010, 07:58:11 AM »
Quote
It's 26mm.
For 550F2 and K3 it's 18mm.
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Offline dave500

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Re: cb 550---Anybody know offhand the size of the rear axle nut?
« Reply #9 on: January 25, 2010, 08:33:37 PM »
use a "shifter" or is that a monkey wrench or an adjustable spanner?
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Offline chickenman_26

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Re: cb 550---Anybody know offhand the size of the rear axle nut?
« Reply #10 on: February 08, 2010, 08:34:27 AM »
Quote from: Deltarider on January 25, 2010, 07:58:11 AM
Quote
It's 26mm.
For 550F2 and K3 it's 18mm.
The thread is 18 mm. He wanted to know what size socket is needed for the nut. That's 26 mm.

Stu
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Offline Deltarider

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Re: cb 550---Anybody know offhand the size of the rear axle nut?
« Reply #11 on: February 08, 2010, 01:52:52 PM »
Quote
Quote from: Deltarider on January 25, 2010, 10:58:11 am
Quote
It's 26mm.
For 550F2 and K3 it's 18mm.

The thread is 18 mm. He wanted to know what size socket is needed for the nut. That's 26 mm.
Sorry, the 550F2 and K3 have a smaller nut 24mm or even 22mm.
« Last Edit: February 08, 2010, 02:02:10 PM by Deltarider »
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Offline SHELLFISH

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Re: cb 550---Anybody know offhand the size of the rear axle nut?
« Reply #12 on: February 08, 2010, 02:48:24 PM »
1976 550 F & K are both 26mm. I use a 1 inch wrench. It's tight but it works.
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Offline elquenada

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Re: cb 550---Anybody know offhand the size of the rear axle nut?
« Reply #13 on: February 08, 2010, 06:13:36 PM »
thanks.  the 26mm was the right size for the '75 550 k1 as well.
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1975 CB 550

"A veces lo que es contra lo justo
por la misma razón deleita el gusto" 
Lope de Vega

Offline chickenman_26

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Re: cb 550---Anybody know offhand the size of the rear axle nut?
« Reply #14 on: February 10, 2010, 10:35:46 AM »
Quote from: Deltarider on February 08, 2010, 01:52:52 PM

Sorry, the 550F2 and K3 have a smaller nut 24mm or even 22mm.
That's what I love about Internet tech forums. No guesswork, just the facts. ::) 

Stu
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